diff --git a/src/book.rs b/src/book.rs
index 5e3a8d8..a5910c4 100644
--- a/src/book.rs
+++ b/src/book.rs
@@ -796,7 +796,9 @@ impl OrderBook {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use rust_decimal_macros::dec; // Convenient macro for creating Decimal literals
+    use rust_decimal_macros::dec;
+    use std::str::FromStr;
+    use std::time::Duration; // Convenient macro for creating Decimal literals
 
     #[test]
     fn test_order_book_creation() {
@@ -929,26 +931,28 @@ mod tests {
     fn test_liquidity_analysis() {
         let mut book = OrderBook::new("test_token".to_string(), 10);
         
-        // Build order book
-        book.apply_delta_fast(7500, 1000); // bid at 0.75, size 100
-        book.apply_delta_fast(7400, 500);  // bid at 0.74, size 50
-        book.apply_delta_fast(7600, 800);  // ask at 0.76, size 80
-        book.apply_delta_fast(7700, 1200); // ask at 0.77, size 120
+        // Build order book using legacy methods
+        book.apply_bid_delta(Decimal::from_str("0.75").unwrap(), Decimal::from_str("100.0").unwrap());
+        book.apply_bid_delta(Decimal::from_str("0.74").unwrap(), Decimal::from_str("50.0").unwrap());
+        book.apply_ask_delta(Decimal::from_str("0.76").unwrap(), Decimal::from_str("80.0").unwrap());
+        book.apply_ask_delta(Decimal::from_str("0.77").unwrap(), Decimal::from_str("120.0").unwrap());
         
-        // Test liquidity at specific price
-        let bid_liquidity = book.liquidity_at_price(Decimal::from_str("0.75").unwrap());
+        // Test liquidity at specific price (bids)
+        let bid_liquidity = book.liquidity_at_price(Decimal::from_str("0.75").unwrap(), Side::BUY);
         assert_eq!(bid_liquidity, Decimal::from_str("100.0").unwrap());
         
-        let ask_liquidity = book.liquidity_at_price(Decimal::from_str("0.76").unwrap());
+        // Test liquidity at specific price (asks)  
+        let ask_liquidity = book.liquidity_at_price(Decimal::from_str("0.76").unwrap(), Side::SELL);
         assert_eq!(ask_liquidity, Decimal::from_str("80.0").unwrap());
         
-        // Test liquidity in range
+        // Test liquidity in range (both sides)
         let range_liquidity = book.liquidity_in_range(
             Decimal::from_str("0.74").unwrap(),
-            Decimal::from_str("0.77").unwrap()
+            Decimal::from_str("0.77").unwrap(),
+            Side::BUY
         );
-        // Should include: 50 (0.74 bid) + 100 (0.75 bid) + 80 (0.76 ask) + 120 (0.77 ask) = 350
-        assert_eq!(range_liquidity, Decimal::from_str("350.0").unwrap());
+        // Should include bid liquidity: 50 (0.74 bid) + 100 (0.75 bid) = 150
+        assert_eq!(range_liquidity, Decimal::from_str("150.0").unwrap());
     }
 
     #[test]
@@ -959,12 +963,12 @@ mod tests {
         assert!(book.is_valid());
         
         // Add normal levels
-        book.apply_delta_fast(7500, 1000); // bid at 0.75
-        book.apply_delta_fast(7600, 800);  // ask at 0.76
+        book.apply_bid_delta(Decimal::from_str("0.75").unwrap(), Decimal::from_str("100.0").unwrap());
+        book.apply_ask_delta(Decimal::from_str("0.76").unwrap(), Decimal::from_str("80.0").unwrap());
         assert!(book.is_valid());
         
         // Create crossed book (invalid) - bid higher than ask
-        book.apply_delta_fast(7700, 500); // bid at 0.77 (higher than ask at 0.76)
+        book.apply_bid_delta(Decimal::from_str("0.77").unwrap(), Decimal::from_str("50.0").unwrap());
         assert!(!book.is_valid());
     }
 
diff --git a/src/fill.rs b/src/fill.rs
index aba5516..12f656e 100644
--- a/src/fill.rs
+++ b/src/fill.rs
@@ -564,4 +564,146 @@ mod tests {
         assert!(processor.process_fill(fill).is_ok());
         assert_eq!(processor.pending_fills.len(), 1);
     }
+
+    #[test]
+    fn test_fill_engine_market_order_execution() {
+        let mut engine = FillEngine::new();
+        
+        // Create a market order
+        let market_order = MarketOrder {
+            id: "market_1".to_string(),
+            side: Side::BUY,
+            size: dec!(50),
+            token_id: "token_1".to_string(),
+            max_slippage: Some(dec!(0.05)), // 5% slippage tolerance
+        };
+        
+        // Execute the market order
+        let result = engine.execute_market_order(market_order);
+        assert!(result.is_ok());
+        
+        let execution = result.unwrap();
+        assert_eq!(execution.order_id, "market_1");
+        assert_eq!(execution.side, Side::BUY);
+        assert_eq!(execution.requested_size, dec!(50));
+    }
+
+    #[test]
+    fn test_fill_processor_batch_processing() {
+        let mut processor = FillProcessor::new();
+        
+        // Add multiple fills
+        let fill1 = Fill {
+            id: "fill_1".to_string(),
+            order_id: "order_1".to_string(),
+            side: Side::BUY,
+            size: dec!(25),
+            price: dec!(0.75),
+            fee: dec!(0.01),
+            timestamp: 1234567890,
+            token_id: "token_1".to_string(),
+        };
+        
+        let fill2 = Fill {
+            id: "fill_2".to_string(),
+            order_id: "order_2".to_string(),
+            side: Side::SELL,
+            size: dec!(30),
+            price: dec!(0.76),
+            fee: dec!(0.015),
+            timestamp: 1234567891,
+            token_id: "token_1".to_string(),
+        };
+        
+        processor.add_fill(fill1);
+        processor.add_fill(fill2);
+        
+        // Process all fills
+        processor.process_pending_fills();
+        
+        assert_eq!(processor.stats.processed_fills, 2);
+        assert_eq!(processor.stats.processed_volume, dec!(55)); // 25 + 30
+        assert_eq!(processor.stats.pending_fills, 0);
+    }
+
+    #[test]
+    fn test_market_order_validation() {
+        let valid_order = MarketOrder {
+            id: "valid_1".to_string(),
+            side: Side::BUY,
+            size: dec!(10),
+            token_id: "0x1234567890123456789012345678901234567890".to_string(),
+            max_slippage: Some(dec!(0.1)),
+        };
+        
+        let result = validate_market_order(&valid_order);
+        assert!(result.is_ok());
+        
+        // Test invalid order (zero size)
+        let invalid_order = MarketOrder {
+            id: "invalid_1".to_string(),
+            side: Side::BUY,
+            size: Decimal::ZERO,
+            token_id: "0x1234567890123456789012345678901234567890".to_string(),
+            max_slippage: Some(dec!(0.1)),
+        };
+        
+        let result = validate_market_order(&invalid_order);
+        assert!(result.is_err());
+    }
+
+    #[test]
+    fn test_fee_calculation_edge_cases() {
+        // Test very small amounts
+        let small_fee = calculate_fee(dec!(0.001), dec!(0.005));
+        assert!(small_fee >= Decimal::ZERO);
+        
+        // Test large amounts
+        let large_fee = calculate_fee(dec!(10000), dec!(0.005));
+        assert_eq!(large_fee, dec!(50)); // 10000 * 0.005
+        
+        // Test zero fee rate
+        let zero_fee = calculate_fee(dec!(100), Decimal::ZERO);
+        assert_eq!(zero_fee, Decimal::ZERO);
+        
+        // Test zero amount
+        let zero_amount_fee = calculate_fee(Decimal::ZERO, dec!(0.005));
+        assert_eq!(zero_amount_fee, Decimal::ZERO);
+    }
+
+    #[test]
+    fn test_fill_processor_statistics() {
+        let mut processor = FillProcessor::new();
+        
+        // Initial stats should be zero
+        assert_eq!(processor.stats.pending_fills, 0);
+        assert_eq!(processor.stats.processed_fills, 0);
+        assert_eq!(processor.stats.pending_volume, Decimal::ZERO);
+        assert_eq!(processor.stats.processed_volume, Decimal::ZERO);
+        
+        // Add a fill
+        let fill = Fill {
+            id: "fill_stats".to_string(),
+            order_id: "order_stats".to_string(),
+            side: Side::BUY,
+            size: dec!(75),
+            price: dec!(0.80),
+            fee: dec!(0.02),
+            timestamp: 1234567892,
+            token_id: "token_1".to_string(),
+        };
+        
+        processor.add_fill(fill);
+        
+        // Check pending stats
+        assert_eq!(processor.stats.pending_fills, 1);
+        assert_eq!(processor.stats.pending_volume, dec!(75));
+        
+        // Process and check final stats
+        processor.process_pending_fills();
+        assert_eq!(processor.stats.processed_fills, 1);
+        assert_eq!(processor.stats.processed_volume, dec!(75));
+        assert_eq!(processor.stats.pending_fills, 0);
+        assert_eq!(processor.stats.pending_volume, Decimal::ZERO);
+    }
 } 
\ No newline at end of file
diff --git a/tarpaulin-report.html b/tarpaulin-report.html
deleted file mode 100644
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-        var data = {"files":[{"path":["/","Users","juliustranquilli","personal","polyfill-rs","benches","book_updates.rs"],"content":"//! Benchmark for order book updates\n//!\n//! This benchmark measures the performance of order book operations\n//! including delta application, price updates, and book maintenance.\n\nuse criterion::{black_box, criterion_group, criterion_main, Criterion};\nuse polyfill_rs::{\n    book::OrderBook,\n    types::{OrderDelta, Side},\n};\nuse rust_decimal::{Decimal, Decimal as RustDecimal};\nuse rust_decimal_macros::dec;\nuse std::time::Instant;\n\nfn bench_book_creation(c: \u0026mut Criterion) {\n    c.bench_function(\"book_creation\", |b| {\n        b.iter(|| {\n            let _book = OrderBook::new(\n                black_box(\"test_token\".to_string()),\n                black_box(100),\n            );\n        });\n    });\n}\n\nfn bench_delta_application(c: \u0026mut Criterion) {\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate with some levels\n    for i in 1..=10 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: Side::BUY,\n            price,\n            size: dec!(100),\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"delta_application\", |b| {\n        b.iter(|| {\n            let delta = OrderDelta {\n                token_id: \"test_token\".to_string(),\n                timestamp: chrono::Utc::now(),\n                side: black_box(Side::SELL),\n                price: black_box(dec!(0.52)),\n                size: black_box(dec!(50)),\n                sequence: black_box(11),\n            };\n            book.apply_delta(delta).unwrap();\n        });\n    });\n}\n\nfn bench_best_price_lookup(c: \u0026mut Criterion) {\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate with levels\n    for i in 1..=20 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            price,\n            size: dec!(100),\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"best_price_lookup\", |b| {\n        b.iter(|| {\n            let _bid = book.best_bid();\n            let _ask = book.best_ask();\n            let _spread = book.spread();\n            let _mid = book.mid_price();\n        });\n    });\n}\n\nfn bench_book_snapshot(c: \u0026mut Criterion) {\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate with levels\n    for i in 1..=50 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            price,\n            size: dec!(100),\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"book_snapshot\", |b| {\n        b.iter(|| {\n            let _snapshot = book.snapshot();\n        });\n    });\n}\n\nfn bench_market_impact_calculation(c: \u0026mut Criterion) {\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate with levels\n    for i in 1..=30 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            price,\n            size: dec!(100),\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"market_impact_calculation\", |b| {\n        b.iter(|| {\n            let _impact = book.calculate_market_impact(Side::BUY, dec!(50));\n        });\n    });\n}\n\nfn bench_high_frequency_updates(c: \u0026mut Criterion) {\n    c.bench_function(\"high_frequency_updates\", |b| {\n        b.iter(|| {\n            let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n            let start_time = Instant::now();\n            \n            // Simulate high-frequency updates\n            for i in 1..=1000 {\n                let price = Decimal::from(500 + (i % 100)) / Decimal::from(1000);\n                let size = Decimal::from(10 + (i % 90));\n                let delta = OrderDelta {\n                    token_id: \"test_token\".to_string(),\n                    timestamp: chrono::Utc::now(),\n                    side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n                    price,\n                    size,\n                    sequence: i,\n                };\n                book.apply_delta(delta).unwrap();\n                \n                // Check prices every 10 updates\n                if i % 10 == 0 {\n                    let _bid = book.best_bid();\n                    let _ask = book.best_ask();\n                }\n            }\n            \n            let duration = start_time.elapsed();\n            black_box(duration);\n        });\n    });\n}\n\nfn bench_concurrent_access(c: \u0026mut Criterion) {\n    use std::sync::Arc;\n    use tokio::sync::RwLock;\n    \n    c.bench_function(\"concurrent_access\", |b| {\n        b.iter(|| {\n            let book = Arc::new(RwLock::new(OrderBook::new(\"test_token\".to_string(), 100)));\n            let book_clone = book.clone();\n            \n            // Simulate concurrent reads and writes\n            let rt = tokio::runtime::Runtime::new().unwrap();\n            rt.block_on(async {\n                let mut tasks = Vec::new();\n                \n                // Spawn writer tasks\n                for i in 1..=10 {\n                    let book = book.clone();\n                    tasks.push(tokio::spawn(async move {\n                        let price = Decimal::from(50 + i) / Decimal::from(100);\n                        let delta = OrderDelta {\n                            token_id: \"test_token\".to_string(),\n                            timestamp: chrono::Utc::now(),\n                            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n                            price,\n                            size: dec!(100),\n                            sequence: i,\n                        };\n                        let mut book = book.write().await;\n                        book.apply_delta(delta).unwrap();\n                    }));\n                }\n                \n                // Spawn reader tasks\n                for _ in 0..20 {\n                    let book = book_clone.clone();\n                    tasks.push(tokio::spawn(async move {\n                        let book = book.read().await;\n                        let _bid = book.best_bid();\n                        let _ask = book.best_ask();\n                    }));\n                }\n                \n                // Wait for all tasks\n                for task in tasks {\n                    let _ = task.await;\n                }\n            });\n        });\n    });\n}\n\ncriterion_group!(\n    benches,\n    bench_book_creation,\n    bench_delta_application,\n    bench_best_price_lookup,\n    bench_book_snapshot,\n    bench_market_impact_calculation,\n    bench_high_frequency_updates,\n    bench_concurrent_access,\n);\ncriterion_main!(benches); ","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","benches","fill_processing.rs"],"content":"//! Benchmark for fill processing\n//!\n//! This benchmark measures the performance of trade execution and\n//! fill processing operations.\n\nuse criterion::{black_box, criterion_group, criterion_main, Criterion};\nuse polyfill_rs::{\n    book::OrderBook,\n    fill::{FillEngine, FillProcessor},\n    types::{FillEvent, MarketOrderRequest, OrderDelta, Side},\n};\nuse rust_decimal::{Decimal, Decimal as RustDecimal};\nuse rust_decimal_macros::dec;\nuse std::time::Instant;\n\nfn bench_fill_engine_creation(c: \u0026mut Criterion) {\n    c.bench_function(\"fill_engine_creation\", |b| {\n        b.iter(|| {\n            let _engine = FillEngine::new(\n                black_box(dec!(1)),\n                black_box(dec!(5)),\n                black_box(10),\n            );\n        });\n    });\n}\n\nfn bench_market_order_execution(c: \u0026mut Criterion) {\n    let mut engine = FillEngine::new(dec!(1), dec!(5), 10);\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate book with levels\n    for i in 1..=20 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            price,\n            size: dec!(100),\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"market_order_execution\", |b| {\n        b.iter(|| {\n            let request = MarketOrderRequest {\n                token_id: \"test_token\".to_string(),\n                side: black_box(Side::BUY),\n                amount: black_box(dec!(50)),\n                slippage_tolerance: Some(dec!(1.0)),\n                client_id: Some(\"bench_order\".to_string()),\n            };\n            \n            let _result = engine.execute_market_order(\u0026request, \u0026book);\n        });\n    });\n}\n\nfn bench_fill_processor(c: \u0026mut Criterion) {\n    let mut processor = FillProcessor::new(1000);\n    \n    c.bench_function(\"fill_processor\", |b| {\n        b.iter(|| {\n            let fill = FillEvent {\n                id: \"fill_1\".to_string(),\n                order_id: \"order_1\".to_string(),\n                token_id: \"test_token\".to_string(),\n                side: black_box(Side::BUY),\n                price: black_box(dec!(0.5)),\n                size: black_box(dec!(100)),\n                timestamp: chrono::Utc::now(),\n                maker_address: alloy_primitives::Address::ZERO,\n                taker_address: alloy_primitives::Address::ZERO,\n                fee: black_box(dec!(0.1)),\n            };\n            \n            processor.process_fill(fill).unwrap();\n        });\n    });\n}\n\nfn bench_market_impact_calculation(c: \u0026mut Criterion) {\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate with realistic order book\n    for i in 1..=30 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let size = Decimal::from(100 + i * 10);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            price,\n            size,\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"market_impact_calculation\", |b| {\n        b.iter(|| {\n            let _impact = book.calculate_market_impact(Side::BUY, dec!(50));\n            let _impact = book.calculate_market_impact(Side::SELL, dec!(50));\n        });\n    });\n}\n\nfn bench_high_frequency_fills(c: \u0026mut Criterion) {\n    c.bench_function(\"high_frequency_fills\", |b| {\n        b.iter(|| {\n            let mut engine = FillEngine::new(dec!(1), dec!(2), 5);\n            let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n            let start_time = Instant::now();\n            \n            // Simulate high-frequency fill processing\n            for i in 1..=100 {\n                // Add some market depth\n                let price = Decimal::from(500 + (i % 10)) / Decimal::from(1000);\n                let size = Decimal::from(10 + (i % 90));\n                let delta = OrderDelta {\n                    token_id: \"test_token\".to_string(),\n                    timestamp: chrono::Utc::now(),\n                    side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n                    price,\n                    size,\n                    sequence: i,\n                };\n                book.apply_delta(delta).unwrap();\n                \n                // Execute market orders\n                if i % 5 == 0 {\n                    let request = MarketOrderRequest {\n                        token_id: \"test_token\".to_string(),\n                        side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n                        amount: dec!(10),\n                        slippage_tolerance: Some(dec!(1.0)),\n                        client_id: Some(format!(\"order_{}\", i)),\n                    };\n                    \n                    let _result = engine.execute_market_order(\u0026request, \u0026book);\n                }\n            }\n            \n            let duration = start_time.elapsed();\n            black_box(duration);\n        });\n    });\n}\n\nfn bench_fill_statistics(c: \u0026mut Criterion) {\n    let mut engine = FillEngine::new(dec!(1), dec!(5), 10);\n    \n    // Add some fills\n    for i in 1..=100 {\n        let request = MarketOrderRequest {\n            token_id: \"test_token\".to_string(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            amount: dec!(10),\n            slippage_tolerance: Some(dec!(1.0)),\n            client_id: Some(format!(\"order_{}\", i)),\n        };\n        \n        let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n        book.apply_delta(OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: request.side.opposite(),\n            price: dec!(0.5),\n            size: dec!(100),\n            sequence: i,\n        }).unwrap();\n        \n        let _result = engine.execute_market_order(\u0026request, \u0026book);\n    }\n\n    c.bench_function(\"fill_statistics\", |b| {\n        b.iter(|| {\n            let _stats = engine.get_stats();\n        });\n    });\n}\n\ncriterion_group!(\n    benches,\n    bench_fill_engine_creation,\n    bench_market_order_execution,\n    bench_fill_processor,\n    bench_market_impact_calculation,\n    bench_high_frequency_fills,\n    bench_fill_statistics,\n);\ncriterion_main!(benches); ","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","examples","comprehensive_demo.rs"],"content":"//! Comprehensive Demo for polyfill-rs\n//!\n//! This example demonstrates all the major functions and capabilities of the polyfill-rs library:\n//! - Basic client operations and API calls\n//! - Order book management and analytics\n//! - Real-time streaming capabilities\n//! - Trade execution and fill processing\n//! - Utility functions and mathematical operations\n//! - Error handling and retry logic\n//! - Rate limiting and performance optimizations\n\nuse polyfill_rs::{\n    // Core client types\n    ClobClient, PolyfillClient, OrderArgs, Side, OrderType,\n    \n    // Order book management\n    book::{OrderBook, OrderBookManager},\n    \n    // Streaming capabilities\n    stream::{WebSocketStream, StreamManager},\n    \n    // Fill execution\n    fill::{FillEngine, FillProcessor},\n    \n    // Types and structures\n    types::*,\n    \n    // Error handling\n    errors::{PolyfillError, Result},\n    \n    // Utility functions\n    utils::{crypto, math, retry, time, url, rate_limit, address},\n    \n    // Configuration\n    ClientConfig,\n};\n\nuse rust_decimal::Decimal;\nuse rust_decimal_macros::dec;\nuse std::time::Duration;\nuse tokio::time::sleep;\nuse tracing::{error, info, debug};\n\n/// Comprehensive demo showcasing all polyfill-rs functionality\npub struct PolyfillDemo {\n    /// Basic HTTP client\n    client: ClobClient,\n    /// Advanced client with configuration\n    advanced_client: PolyfillClient,\n    /// Order book manager\n    book_manager: OrderBookManager,\n    /// Fill engine for trade execution\n    fill_engine: FillEngine,\n    /// Fill processor for handling fills\n    fill_processor: FillProcessor,\n    /// Stream manager for real-time data\n    stream_manager: StreamManager,\n    /// Rate limiter\n    rate_limiter: rate_limit::TokenBucket,\n    /// Statistics\n    stats: DemoStats,\n}\n\n/// Demo statistics\n#[derive(Debug, Clone)]\npub struct DemoStats {\n    pub api_calls: u64,\n    pub orders_processed: u64,\n    pub fills_processed: u64,\n    pub stream_messages: u64,\n    pub errors: u64,\n    pub total_volume: Decimal,\n}\n\nimpl Default for DemoStats {\n    fn default() -\u003e Self {\n        Self {\n            api_calls: 0,\n            orders_processed: 0,\n            fills_processed: 0,\n            stream_messages: 0,\n            errors: 0,\n            total_volume: dec!(0),\n        }\n    }\n}\n\nimpl PolyfillDemo {\n    /// Create a new comprehensive demo\n    pub fn new() -\u003e Result\u003cSelf\u003e {\n        // Create basic client\n        let client = ClobClient::new(\"https://clob.polymarket.com\");\n        \n        // Create advanced client with configuration\n        let _config = ClientConfig {\n            base_url: \"https://clob.polymarket.com\".to_string(),\n            chain_id: 137, // Polygon\n            private_key: None, // Would be set in production\n            api_credentials: None, // Would be set in production\n            max_slippage: Some(dec!(0.01)), // 1% max slippage\n            fee_rate: Some(dec!(0.02)), // 2% fee rate\n            timeout: Some(Duration::from_secs(30)),\n            max_connections: Some(100),\n        };\n        \n        let advanced_client = PolyfillClient::new(\"https://clob.polymarket.com\");\n        \n        // Create order book manager\n        let book_manager = OrderBookManager::new(100);\n        \n        // Create fill engine\n        let fill_engine = FillEngine::new(\n            dec!(1.0),    // Min fill size\n            dec!(2.0),    // Max slippage 2%\n            5,            // 5 bps fee rate\n        );\n        \n        // Create fill processor\n        let fill_processor = FillProcessor::new(1000);\n        \n        // Create stream manager\n        let stream_manager = StreamManager::new();\n        \n        // Create rate limiter (100 requests per second)\n        let rate_limiter = rate_limit::TokenBucket::new(100, 100);\n        \n        Ok(Self {\n            client,\n            advanced_client,\n            book_manager,\n            fill_engine,\n            fill_processor,\n            stream_manager,\n            rate_limiter,\n            stats: DemoStats::default(),\n        })\n    }\n\n    /// Demo 1: Basic API Operations\n    pub async fn demo_basic_api_operations(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 1: Basic API Operations ===\");\n        \n        // Test connectivity\n        let is_ok = self.client.get_ok().await;\n        info!(\"API connectivity: {}\", is_ok);\n        self.stats.api_calls += 1;\n        \n        // Get server time\n        match self.client.get_server_time().await {\n            Ok(timestamp) =\u003e {\n                info!(\"Server time: {}\", timestamp);\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get server time: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        // Get sampling markets\n        match self.client.get_sampling_markets(None).await {\n            Ok(markets) =\u003e {\n                info!(\"Found {} markets\", markets.data.len());\n                for market in \u0026markets.data[..std::cmp::min(3, markets.data.len())] {\n                    info!(\"  Market: {} - {}\", market.question, market.market_slug);\n                }\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get markets: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        Ok(())\n    }\n\n    /// Demo 2: Order Book Operations\n    pub async fn demo_order_book_operations(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 2: Order Book Operations ===\");\n        \n        // Example token ID (you would use a real one in production)\n        let token_id = \"12345\";\n        \n        // Get order book from API\n        match self.client.get_order_book(token_id).await {\n            Ok(order_book) =\u003e {\n                info!(\"Order book for token {}: {} bids, {} asks\", \n                    token_id, order_book.bids.len(), order_book.asks.len());\n                \n                // Create local order book\n                let mut local_book = OrderBook::new(token_id.to_string(), 50);\n                \n                // Apply order book data to local book\n                for (i, bid) in order_book.bids.iter().enumerate() {\n                    local_book.apply_delta(OrderDelta {\n                        token_id: token_id.to_string(),\n                        timestamp: chrono::Utc::now(),\n                        side: Side::BUY,\n                        price: bid.price,\n                        size: bid.size,\n                        sequence: i as u64,\n                    })?;\n                }\n                \n                for (i, ask) in order_book.asks.iter().enumerate() {\n                    local_book.apply_delta(OrderDelta {\n                        token_id: token_id.to_string(),\n                        timestamp: chrono::Utc::now(),\n                        side: Side::SELL,\n                        price: ask.price,\n                        size: ask.size,\n                        sequence: (order_book.bids.len() + i) as u64,\n                    })?;\n                }\n                \n                // Get analytics\n                let analytics = local_book.analytics();\n                info!(\"Book analytics:\");\n                info!(\"  Bid levels: {}, Ask levels: {}\", analytics.bid_count, analytics.ask_count);\n                info!(\"  Total bid size: {}, Total ask size: {}\", analytics.total_bid_size, analytics.total_ask_size);\n                if let Some(spread) = analytics.spread {\n                    info!(\"  Spread: {} ({:.2}%)\", spread, analytics.spread_pct.unwrap_or(dec!(0)));\n                }\n                if let Some(mid) = analytics.mid_price {\n                    info!(\"  Mid price: {}\", mid);\n                }\n                \n                // Calculate market impact\n                if let Some(impact) = local_book.calculate_market_impact(Side::BUY, dec!(100.0)) {\n                    info!(\"Market impact for 100 size buy:\");\n                    info!(\"  Average price: {}\", impact.average_price);\n                    info!(\"  Impact: {:.2}%\", impact.impact_pct);\n                    info!(\"  Total cost: {}\", impact.total_cost);\n                }\n                \n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get order book: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        Ok(())\n    }\n\n    /// Demo 3: Market Data Operations\n    pub async fn demo_market_data_operations(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 3: Market Data Operations ===\");\n        \n        let token_id = \"12345\";\n        \n        // Get midpoint\n        match self.client.get_midpoint(token_id).await {\n            Ok(midpoint) =\u003e {\n                info!(\"Midpoint for {}: {}\", token_id, midpoint.mid);\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get midpoint: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        // Get spread\n        match self.client.get_spread(token_id).await {\n            Ok(spread) =\u003e {\n                info!(\"Spread for {}: {}\", token_id, spread.spread);\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get spread: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        // Get price for both sides\n        for side in [Side::BUY, Side::SELL] {\n            match self.client.get_price(token_id, side).await {\n                Ok(price) =\u003e {\n                    info!(\"{} price for {}: {}\", side.as_str(), token_id, price.price);\n                    self.stats.api_calls += 1;\n                }\n                Err(e) =\u003e {\n                    error!(\"Failed to get {} price: {}\", side.as_str(), e);\n                    self.stats.errors += 1;\n                }\n            }\n        }\n        \n        // Get tick size\n        match self.client.get_tick_size(token_id).await {\n            Ok(tick_size) =\u003e {\n                info!(\"Tick size for {}: {}\", token_id, tick_size);\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get tick size: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        // Get neg risk\n        match self.client.get_neg_risk(token_id).await {\n            Ok(neg_risk) =\u003e {\n                info!(\"Neg risk for {}: {}\", token_id, neg_risk);\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get neg risk: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        Ok(())\n    }\n\n    /// Demo 4: Order Creation and Management\n    pub async fn demo_order_operations(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 4: Order Creation and Management ===\");\n        \n        // Create order arguments\n        let order_args = OrderArgs::new(\n            \"12345\",\n            dec!(0.75),\n            dec!(100.0),\n            Side::BUY,\n        );\n        \n        info!(\"Created order args: {:?}\", order_args);\n        \n        // Create market order request\n        let market_order = MarketOrderRequest {\n            token_id: \"12345\".to_string(),\n            side: Side::BUY,\n            amount: dec!(100.0),\n            slippage_tolerance: Some(dec!(1.0)), // 1% slippage\n            client_id: Some(\"demo_market_order\".to_string()),\n        };\n        \n        info!(\"Created market order request: {:?}\", market_order);\n        \n        // Create limit order request\n        let limit_order = OrderRequest {\n            token_id: \"12345\".to_string(),\n            side: Side::BUY,\n            price: dec!(0.75),\n            size: dec!(100.0),\n            order_type: OrderType::GTC,\n            expiration: None,\n            client_id: Some(\"demo_limit_order\".to_string()),\n        };\n        \n        info!(\"Created limit order request: {:?}\", limit_order);\n        \n        self.stats.orders_processed += 2;\n        \n        Ok(())\n    }\n\n    /// Demo 5: Fill Execution\n    pub async fn demo_fill_execution(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 5: Fill Execution ===\");\n        \n        // Create a mock order book for testing\n        let mut book = OrderBook::new(\"12345\".to_string(), 50);\n        \n        // Add some liquidity\n        for i in 1..=5 {\n            book.apply_delta(OrderDelta {\n                token_id: \"12345\".to_string(),\n                timestamp: chrono::Utc::now(),\n                side: Side::BUY,\n                price: dec!(0.70) + Decimal::from(i) * dec!(0.01),\n                size: dec!(100.0),\n                sequence: i,\n            })?;\n        }\n        \n        for i in 1..=5 {\n            book.apply_delta(OrderDelta {\n                token_id: \"12345\".to_string(),\n                timestamp: chrono::Utc::now(),\n                side: Side::SELL,\n                price: dec!(0.80) + Decimal::from(i) * dec!(0.01),\n                size: dec!(100.0),\n                sequence: i + 10,\n            })?;\n        }\n        \n        info!(\"Created order book with liquidity\");\n        \n        // Execute market order\n        let market_order = MarketOrderRequest {\n            token_id: \"12345\".to_string(),\n            side: Side::BUY,\n            amount: dec!(50.0),\n            slippage_tolerance: Some(dec!(2.0)),\n            client_id: Some(\"demo_market_buy\".to_string()),\n        };\n        \n        let fill_result = self.fill_engine.execute_market_order(\u0026market_order, \u0026book)?;\n        \n        info!(\"Market order execution result:\");\n        info!(\"  Status: {:?}\", fill_result.status);\n        info!(\"  Total size: {}\", fill_result.total_size);\n        info!(\"  Average price: {}\", fill_result.average_price);\n        info!(\"  Total cost: {}\", fill_result.total_cost);\n        info!(\"  Fees: {}\", fill_result.fees);\n        info!(\"  Number of fills: {}\", fill_result.fills.len());\n        \n        // Process fills\n        for fill in \u0026fill_result.fills {\n            self.fill_processor.process_fill(fill.clone())?;\n            self.stats.fills_processed += 1;\n            self.stats.total_volume += fill.size;\n        }\n        \n        // Execute limit order\n        let limit_order = OrderRequest {\n            token_id: \"12345\".to_string(),\n            side: Side::SELL,\n            price: dec!(0.85),\n            size: dec!(25.0),\n            order_type: OrderType::GTC,\n            expiration: None,\n            client_id: Some(\"demo_limit_sell\".to_string()),\n        };\n        \n        let limit_result = self.fill_engine.execute_limit_order(\u0026limit_order, \u0026book)?;\n        \n        info!(\"Limit order execution result:\");\n        info!(\"  Status: {:?}\", limit_result.status);\n        info!(\"  Total size: {}\", limit_result.total_size);\n        info!(\"  Average price: {}\", limit_result.average_price);\n        \n        self.stats.orders_processed += 2;\n        \n        Ok(())\n    }\n\n    /// Demo 6: Utility Functions\n    pub async fn demo_utility_functions(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 6: Utility Functions ===\");\n        \n        // Time utilities\n        info!(\"Time utilities:\");\n        info!(\"  Current timestamp (secs): {}\", time::now_secs());\n        info!(\"  Current timestamp (millis): {}\", time::now_millis());\n        info!(\"  Current timestamp (micros): {}\", time::now_micros());\n        \n        // Math utilities\n        info!(\"Math utilities:\");\n        let price = dec!(0.7534);\n        let tick_size = dec!(0.01);\n        let rounded_price = math::round_to_tick(price, tick_size);\n        info!(\"  Price: {}, Tick size: {}, Rounded: {}\", price, tick_size, rounded_price);\n        \n        let notional = math::notional(price, dec!(100.0));\n        info!(\"  Notional value: {}\", notional);\n        \n        let spread_pct = math::spread_pct(dec!(0.75), dec!(0.76));\n        info!(\"  Spread percentage: {:?}\", spread_pct);\n        \n        let mid_price = math::mid_price(dec!(0.75), dec!(0.76));\n        info!(\"  Mid price: {:?}\", mid_price);\n        \n        // Address utilities\n        info!(\"Address utilities:\");\n        let address = \"0x1234567890123456789012345678901234567890\";\n        match address::parse_address(address) {\n            Ok(addr) =\u003e info!(\"  Parsed address: {:?}\", addr),\n            Err(e) =\u003e error!(\"  Failed to parse address: {}\", e),\n        }\n        \n        let token_id = \"12345\";\n        match address::validate_token_id(token_id) {\n            Ok(_) =\u003e info!(\"  Valid token ID: {}\", token_id),\n            Err(e) =\u003e error!(\"  Invalid token ID: {}\", e),\n        }\n        \n        // URL utilities\n        info!(\"URL utilities:\");\n        let endpoint = url::build_endpoint(\"https://api.example.com\", \"/v1/orders\")?;\n        info!(\"  Built endpoint: {}\", endpoint);\n        \n        // Rate limiting\n        info!(\"Rate limiting:\");\n        for i in 0..5 {\n            let allowed = self.rate_limiter.try_consume();\n            info!(\"  Request {}: {}\", i + 1, if allowed { \"ALLOWED\" } else { \"RATE LIMITED\" });\n        }\n        \n        Ok(())\n    }\n\n    /// Demo 7: Error Handling and Retry Logic\n    pub async fn demo_error_handling(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 7: Error Handling and Retry Logic ===\");\n        \n        // Demonstrate retry logic\n        let retry_config = retry::RetryConfig {\n            max_attempts: 3,\n            initial_delay: Duration::from_millis(100),\n            max_delay: Duration::from_secs(1),\n            backoff_factor: 2.0,\n            jitter: true,\n        };\n        \n        let operation = || async {\n            // Simulate a potentially failing operation\n            if rand::random::\u003cbool\u003e() {\n                Ok(\"Success!\")\n            } else {\n                Err(PolyfillError::network(\"Simulated network error\", std::io::Error::new(std::io::ErrorKind::Other, \"Simulated error\")))\n            }\n        };\n        \n        match retry::with_retry(\u0026retry_config, operation).await {\n            Ok(result) =\u003e {\n                info!(\"Retry operation succeeded: {}\", result);\n            }\n            Err(e) =\u003e {\n                error!(\"Retry operation failed after all attempts: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        // Demonstrate error types\n        info!(\"Error types demonstration:\");\n        \n        let api_error = PolyfillError::api(400, \"Bad Request\");\n        info!(\"  API Error: {:?}\", api_error);\n        \n        let network_error = PolyfillError::network(\"Connection timeout\", std::io::Error::new(std::io::ErrorKind::TimedOut, \"Connection timeout\"));\n        info!(\"  Network Error: {:?}\", network_error);\n        \n        let parse_error = PolyfillError::parse(\"Invalid JSON\", None);\n        info!(\"  Parse Error: {:?}\", parse_error);\n        \n        let config_error = PolyfillError::config(\"Invalid configuration\");\n        info!(\"  Config Error: {:?}\", config_error);\n        \n        Ok(())\n    }\n\n    /// Demo 8: Streaming Capabilities (Mock)\n    pub async fn demo_streaming_capabilities(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 8: Streaming Capabilities ===\");\n        \n        // Create a mock WebSocket stream\n        let _stream = WebSocketStream::new(\"wss://stream.polymarket.com\");\n        \n        info!(\"Created WebSocket stream\");\n        \n        // Simulate subscription\n        let subscription = WssSubscription {\n            auth: WssAuth {\n                address: \"0x1234567890123456789012345678901234567890\".to_string(),\n                signature: \"mock_signature\".to_string(),\n                timestamp: time::now_secs(),\n                nonce: crypto::generate_nonce().to_string(),\n            },\n            markets: Some(vec![\"market1\".to_string(), \"market2\".to_string()]),\n            asset_ids: Some(vec![\"12345\".to_string(), \"67890\".to_string()]),\n            channel_type: \"USER\".to_string(),\n        };\n        \n        info!(\"Created subscription: {:?}\", subscription);\n        \n        // Simulate receiving stream messages\n        let messages = vec![\n            StreamMessage::Heartbeat { timestamp: chrono::Utc::now() },\n            StreamMessage::BookUpdate {\n                data: OrderDelta {\n                    token_id: \"12345\".to_string(),\n                    timestamp: chrono::Utc::now(),\n                    side: Side::BUY,\n                    price: dec!(0.75),\n                    size: dec!(100.0),\n                    sequence: 1,\n                }\n            },\n            StreamMessage::Trade {\n                data: FillEvent {\n                    id: \"fill1\".to_string(),\n                    order_id: \"order1\".to_string(),\n                    token_id: \"12345\".to_string(),\n                    side: Side::BUY,\n                    price: dec!(0.75),\n                    size: dec!(50.0),\n                    timestamp: chrono::Utc::now(),\n                    maker_address: alloy_primitives::Address::ZERO,\n                    taker_address: alloy_primitives::Address::ZERO,\n                    fee: dec!(0.375),\n                }\n            },\n        ];\n        \n        for message in messages {\n            info!(\"Received stream message: {:?}\", message);\n            self.stats.stream_messages += 1;\n            \n            // Process message based on type\n            match \u0026message {\n                StreamMessage::BookUpdate { data } =\u003e {\n                    info!(\"  Processing book update for token: {}\", data.token_id);\n                    if let Err(e) = self.book_manager.apply_delta(data.clone()) {\n                        error!(\"  Failed to apply book update: {}\", e);\n                        self.stats.errors += 1;\n                    }\n                }\n                StreamMessage::Trade { data } =\u003e {\n                    info!(\"  Processing trade: {} {} @ {}\", \n                        data.side.as_str(), data.size, data.price);\n                    if let Err(e) = self.fill_processor.process_fill(data.clone()) {\n                        error!(\"  Failed to process fill: {}\", e);\n                        self.stats.errors += 1;\n                    }\n                }\n                StreamMessage::Heartbeat { timestamp } =\u003e {\n                    debug!(\"  Received heartbeat at: {}\", timestamp);\n                }\n                _ =\u003e {\n                    info!(\"  Unhandled message type\");\n                }\n            }\n        }\n        \n        Ok(())\n    }\n\n    /// Demo 9: Performance and Analytics\n    pub async fn demo_performance_analytics(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 9: Performance and Analytics ===\");\n        \n        // Get fill engine statistics\n        let fill_stats = self.fill_engine.get_stats();\n        info!(\"Fill engine statistics:\");\n        info!(\"  Total orders: {}\", fill_stats.total_orders);\n        info!(\"  Total fills: {}\", fill_stats.total_fills);\n        info!(\"  Total volume: {}\", fill_stats.total_volume);\n        info!(\"  Total fees: {}\", fill_stats.total_fees);\n        \n        // Get fill processor statistics\n        let processor_stats = self.fill_processor.get_stats();\n        info!(\"Fill processor statistics:\");\n        info!(\"  Pending orders: {}\", processor_stats.pending_orders);\n        info!(\"  Pending fills: {}\", processor_stats.pending_fills);\n        info!(\"  Pending volume: {}\", processor_stats.pending_volume);\n        info!(\"  Processed fills: {}\", processor_stats.processed_fills);\n        info!(\"  Processed volume: {}\", processor_stats.processed_volume);\n        \n        // Get demo statistics\n        info!(\"Demo statistics:\");\n        info!(\"  API calls: {}\", self.stats.api_calls);\n        info!(\"  Orders processed: {}\", self.stats.orders_processed);\n        info!(\"  Fills processed: {}\", self.stats.fills_processed);\n        info!(\"  Stream messages: {}\", self.stats.stream_messages);\n        info!(\"  Errors: {}\", self.stats.errors);\n        info!(\"  Total volume: {}\", self.stats.total_volume);\n        \n        // Calculate error rate\n        let total_operations = self.stats.api_calls + self.stats.orders_processed + self.stats.stream_messages;\n        let error_rate = if total_operations \u003e 0 {\n            (self.stats.errors as f64 / total_operations as f64) * 100.0\n        } else {\n            0.0\n        };\n        info!(\"  Error rate: {:.2}%\", error_rate);\n        \n        Ok(())\n    }\n\n    /// Run all demos\n    pub async fn run_all_demos(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"Starting comprehensive polyfill-rs demo...\");\n        \n        // Run all demo sections\n        self.demo_basic_api_operations().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_order_book_operations().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_market_data_operations().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_order_operations().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_fill_execution().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_utility_functions().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_error_handling().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_streaming_capabilities().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_performance_analytics().await?;\n        \n        info!(\"Comprehensive demo completed successfully!\");\n        Ok(())\n    }\n}\n\n#[tokio::main]\nasync fn main() -\u003e Result\u003c()\u003e {\n    // Initialize logging\n    tracing_subscriber::fmt::init();\n    \n    info!(\"Polyfill-rs Comprehensive Demo\");\n    info!(\"==============================\");\n    \n    // Create and run demo\n    let mut demo = PolyfillDemo::new()?;\n    \n    if let Err(e) = demo.run_all_demos().await {\n        error!(\"Demo failed: {}\", e);\n        std::process::exit(1);\n    }\n    \n    info!(\"Demo completed successfully!\");\n    Ok(())\n} ","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","examples","quick_demo.rs"],"content":"//! Quick Demo for polyfill-rs\n//!\n//! This example demonstrates all available API endpoints in a simple, easy-to-run format.\n//! It can be run without authentication credentials and will test all public endpoints.\n\nuse polyfill_rs::{ClobClient, Side, Result, PolyfillError};\nuse rust_decimal::Decimal;\nuse std::str::FromStr;\nuse tokio::time::{sleep, Duration};\nuse tracing::{info, error, warn};\n\n/// Quick demo that tests all available endpoints\n#[tokio::main]\nasync fn main() -\u003e Result\u003c()\u003e {\n    // Initialize logging\n    tracing_subscriber::fmt::init();\n    \n    info!(\"Polyfill-rs Quick Demo\");\n    info!(\"======================\");\n    \n    // Create client\n    let client = ClobClient::new(\"https://clob.polymarket.com\");\n    \n    // Test 1: Basic connectivity\n    info!(\"\\nTesting API Connectivity...\");\n    match test_connectivity(\u0026client).await {\n        Ok(_) =\u003e info!(\"API connectivity test passed\"),\n        Err(e) =\u003e {\n            error!(\"API connectivity test failed: {}\", e);\n            return Err(e);\n        }\n    }\n    \n    // Test 2: Get a valid token ID from markets\n    info!(\"\\nGetting Market Data...\");\n    let token_id = match get_valid_token_id(\u0026client).await {\n        Ok(id) =\u003e {\n            info!(\"Found valid token ID: {}\", id);\n            id\n        }\n        Err(e) =\u003e {\n            error!(\"Failed to get valid token ID: {}\", e);\n            return Err(e);\n        }\n    };\n    \n    // Test 3: Test all market data endpoints\n    info!(\"\\nTesting Market Data Endpoints...\");\n    test_market_data_endpoints(\u0026client, \u0026token_id).await?;\n    \n    // Test 4: Test error handling\n    info!(\"\\nTesting Error Handling...\");\n    test_error_handling(\u0026client).await?;\n    \n    // Test 5: Performance test\n    info!(\"\\nTesting Performance...\");\n    test_performance(\u0026client, \u0026token_id).await?;\n    \n    info!(\"\\nAll tests completed successfully!\");\n    info!(\"The polyfill-rs client is working correctly with the Polymarket API.\");\n    \n    Ok(())\n}\n\n/// Test basic API connectivity\nasync fn test_connectivity(client: \u0026ClobClient) -\u003e Result\u003c()\u003e {\n    // Test /ok endpoint\n    let is_ok = client.get_ok().await;\n    if !is_ok {\n        return Err(PolyfillError::network(\"API not responding\", std::io::Error::new(std::io::ErrorKind::Other, \"API not responding\")));\n    }\n    info!(\"  /ok endpoint responding\");\n    \n    // Test /time endpoint\n    let server_time = client.get_server_time().await?;\n    info!(\"  Server time: {}\", server_time);\n    \n    // Verify server time is reasonable (within last 24 hours)\n    let current_time = std::time::SystemTime::now()\n        .duration_since(std::time::UNIX_EPOCH)\n        .unwrap()\n        .as_secs();\n    \n    let time_diff = if server_time \u003e current_time {\n        server_time - current_time\n    } else {\n        current_time - server_time\n    };\n    \n    if time_diff \u003e 86400 { // 24 hours\n        warn!(\"  Server time seems off (diff: {} seconds)\", time_diff);\n    } else {\n        info!(\"  Server time is reasonable\");\n    }\n    \n    Ok(())\n}\n\n/// Get a valid token ID from the markets endpoint\nasync fn get_valid_token_id(client: \u0026ClobClient) -\u003e Result\u003cString\u003e {\n    let markets = client.get_sampling_markets(None).await?;\n    \n    if markets.data.is_empty() {\n        return Err(PolyfillError::api(404, \"No markets found\"));\n    }\n    \n    // Find a market with active tokens\n    for market in \u0026markets.data {\n        if market.active \u0026\u0026 !market.closed {\n            for token in \u0026market.tokens {\n                if !token.token_id.is_empty() {\n                    info!(\"  Found active market: {}\", market.question);\n                    info!(\"  Market slug: {}\", market.market_slug);\n                    info!(\"  Token ID: {}\", token.token_id);\n                    info!(\"  Outcome: {}\", token.outcome);\n                    return Ok(token.token_id.clone());\n                }\n            }\n        }\n    }\n    \n    Err(PolyfillError::api(404, \"No active markets with valid tokens found\"))\n}\n\n/// Test all market data endpoints\nasync fn test_market_data_endpoints(client: \u0026ClobClient, token_id: \u0026str) -\u003e Result\u003c()\u003e {\n    // Test order book\n    info!(\"  Testing order book endpoint...\");\n    let order_book = client.get_order_book(token_id).await?;\n    info!(\"    Order book: {} bids, {} asks\", order_book.bids.len(), order_book.asks.len());\n    \n    // Test midpoint\n    info!(\"  Testing midpoint endpoint...\");\n    let midpoint = client.get_midpoint(token_id).await?;\n    info!(\"    Midpoint: {}\", midpoint.mid);\n    \n    // Test spread\n    info!(\"  Testing spread endpoint...\");\n    let spread = client.get_spread(token_id).await?;\n    info!(\"    Spread: {}\", spread.spread);\n    \n    // Test buy price\n    info!(\"  Testing buy price endpoint...\");\n    let buy_price = client.get_price(token_id, Side::BUY).await?;\n    info!(\"    Buy price: {}\", buy_price.price);\n    \n    // Test sell price\n    info!(\"  Testing sell price endpoint...\");\n    let sell_price = client.get_price(token_id, Side::SELL).await?;\n    info!(\"    Sell price: {}\", sell_price.price);\n    \n    // Test tick size\n    info!(\"  Testing tick size endpoint...\");\n    let tick_size = client.get_tick_size(token_id).await?;\n    info!(\"    Tick size: {}\", tick_size);\n    \n    // Test neg risk\n    info!(\"  Testing neg risk endpoint...\");\n    let neg_risk = client.get_neg_risk(token_id).await?;\n    info!(\"    Neg risk: {}\", neg_risk);\n    \n    // Validate data consistency\n    info!(\"  Validating data consistency...\");\n    validate_market_data(\u0026order_book, \u0026midpoint, \u0026spread, \u0026buy_price, \u0026sell_price)?;\n    \n    Ok(())\n}\n\n/// Validate that market data is consistent\nfn validate_market_data(\n    order_book: \u0026polyfill_rs::client::OrderBookSummary,\n    midpoint: \u0026polyfill_rs::client::MidpointResponse,\n    spread: \u0026polyfill_rs::client::SpreadResponse,\n    buy_price: \u0026polyfill_rs::client::PriceResponse,\n    sell_price: \u0026polyfill_rs::client::PriceResponse,\n) -\u003e Result\u003c()\u003e {\n    // Check that we have some liquidity\n    if order_book.bids.is_empty() \u0026\u0026 order_book.asks.is_empty() {\n        warn!(\"    Order book is empty\");\n    } else {\n        info!(\"    Order book has liquidity\");\n    }\n    \n    // Check that prices are positive\n    if buy_price.price \u003c= Decimal::ZERO {\n        warn!(\"    Buy price is not positive: {}\", buy_price.price);\n    } else {\n        info!(\"    Buy price is positive\");\n    }\n    \n    if sell_price.price \u003c= Decimal::ZERO {\n        warn!(\"    Sell price is not positive: {}\", sell_price.price);\n    } else {\n        info!(\"    Sell price is positive\");\n    }\n    \n    // Check that spread is reasonable\n    if spread.spread \u003c Decimal::ZERO {\n        warn!(\"    Spread is negative: {}\", spread.spread);\n    } else {\n        info!(\"    Spread is non-negative\");\n    }\n    \n    // Check that midpoint is between buy and sell prices (if both exist)\n    if buy_price.price \u003e Decimal::ZERO \u0026\u0026 sell_price.price \u003e Decimal::ZERO {\n        if midpoint.mid \u003c buy_price.price || midpoint.mid \u003e sell_price.price {\n            warn!(\"    Midpoint {} is not between buy {} and sell {}\", \n                  midpoint.mid, buy_price.price, sell_price.price);\n        } else {\n            info!(\"    Midpoint is between buy and sell prices\");\n        }\n    }\n    \n    Ok(())\n}\n\n/// Test error handling with invalid requests\nasync fn test_error_handling(client: \u0026ClobClient) -\u003e Result\u003c()\u003e {\n    // Test with invalid token ID\n    info!(\"  Testing invalid token ID...\");\n    let result = client.get_order_book(\"invalid_token_12345\").await;\n    match result {\n        Ok(_) =\u003e {\n            warn!(\"    Invalid token ID returned data instead of error\");\n        }\n        Err(e) =\u003e {\n            match e {\n                PolyfillError::Api { status, .. } =\u003e {\n                    if status \u003e= 400 {\n                        info!(\"    Invalid token ID correctly returned error: {}\", status);\n                    } else {\n                        warn!(\"    Unexpected status code for invalid token: {}\", status);\n                    }\n                }\n                _ =\u003e {\n                    info!(\"    Invalid token ID returned error: {:?}\", e);\n                }\n            }\n        }\n    }\n    \n    // Test with empty token ID\n    info!(\"  Testing empty token ID...\");\n    let result = client.get_order_book(\"\").await;\n    match result {\n        Ok(_) =\u003e {\n            warn!(\"    Empty token ID returned data instead of error\");\n        }\n        Err(e) =\u003e {\n            info!(\"    Empty token ID correctly returned error: {:?}\", e);\n        }\n    }\n    \n    Ok(())\n}\n\n/// Test performance characteristics\nasync fn test_performance(client: \u0026ClobClient, token_id: \u0026str) -\u003e Result\u003c()\u003e {\n    let mut total_time = Duration::from_secs(0);\n    let mut success_count = 0;\n    let test_count = 5;\n    \n    info!(\"  Running {} performance tests...\", test_count);\n    \n    for i in 1..=test_count {\n        let start = std::time::Instant::now();\n        \n        // Test a mix of endpoints\n        let results = tokio::join!(\n            client.get_server_time(),\n            client.get_midpoint(token_id),\n            client.get_spread(token_id),\n        );\n        \n        let duration = start.elapsed();\n        total_time += duration;\n        \n        match results {\n            (Ok(_), Ok(_), Ok(_)) =\u003e {\n                success_count += 1;\n                info!(\"    Test {}: PASSED {:.2}ms\", i, duration.as_secs_f64() * 1000.0);\n            }\n            _ =\u003e {\n                warn!(\"    Test {}: FAILED in {:.2}ms\", i, duration.as_secs_f64() * 1000.0);\n            }\n        }\n        \n        // Small delay between tests\n        sleep(Duration::from_millis(100)).await;\n    }\n    \n    let avg_time = total_time / test_count as u32;\n    let success_rate = (success_count as f64 / test_count as f64) * 100.0;\n    \n    info!(\"  Performance Summary:\");\n    info!(\"    Success rate: {:.1}%\", success_rate);\n    info!(\"    Average response time: {:.2}ms\", avg_time.as_secs_f64() * 1000.0);\n    info!(\"    Total time: {:.2}s\", total_time.as_secs_f64());\n    \n    // Performance thresholds\n    if avg_time \u003e Duration::from_secs(2) {\n        warn!(\"    Average response time is slow: {:.2}ms\", avg_time.as_secs_f64() * 1000.0);\n    } else {\n        info!(\"    Response times are acceptable\");\n    }\n    \n    if success_rate \u003c 80.0 {\n        warn!(\"    Success rate is low: {:.1}%\", success_rate);\n    } else {\n        info!(\"    Success rate is good\");\n    }\n    \n    Ok(())\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","examples","snipe.rs"],"content":"//! Snipe example for polyfill-rs\n//!\n//! This example demonstrates high-frequency trading techniques including:\n//! - Real-time order book monitoring\n//! - Stale quote detection\n//! - Rapid order execution\n//! - Market impact analysis\n\nuse polyfill_rs::{\n    book::OrderBookManager,\n    errors::Result,\n    fill::{FillEngine, FillStatus},\n    types::*,\n    utils::time,\n};\nuse rust_decimal::Decimal;\nuse rust_decimal_macros::dec;\nuse rust_decimal::prelude::ToPrimitive;\nuse std::time::Duration;\nuse tokio::time::sleep;\nuse tracing::{error, info, warn};\n\n/// Snipe trading strategy\n#[derive(Debug)]\npub struct SnipeStrategy {\n    /// Target token ID\n    token_id: String,\n    /// Maximum spread to consider\n    max_spread_pct: Decimal,\n    /// Minimum order size\n    min_order_size: Decimal,\n    /// Maximum order size\n    max_order_size: Decimal,\n    /// Stale quote threshold (seconds)\n    stale_threshold: u64,\n    /// Last known best prices\n    last_best_bid: Option\u003cDecimal\u003e,\n    last_best_ask: Option\u003cDecimal\u003e,\n    /// Last update timestamp\n    last_update: u64,\n    /// Order book manager\n    book_manager: OrderBookManager,\n    /// Fill engine\n    fill_engine: FillEngine,\n    /// Statistics\n    stats: SnipeStats,\n}\n\n/// Snipe trading statistics\n#[derive(Debug, Clone)]\npub struct SnipeStats {\n    pub opportunities_detected: u64,\n    pub orders_placed: u64,\n    pub orders_filled: u64,\n    pub total_volume: Decimal,\n    pub total_pnl: Decimal,\n    pub avg_fill_time_ms: f64,\n}\n\nimpl Default for SnipeStats {\n    fn default() -\u003e Self {\n        Self {\n            opportunities_detected: 0,\n            orders_placed: 0,\n            orders_filled: 0,\n            total_volume: dec!(0),\n            total_pnl: dec!(0),\n            avg_fill_time_ms: 0.0,\n        }\n    }\n}\n\nimpl SnipeStrategy {\n    /// Create a new snipe strategy\n    pub fn new(\n        token_id: String,\n        max_spread_pct: Decimal,\n        min_order_size: Decimal,\n        max_order_size: Decimal,\n        stale_threshold: u64,\n    ) -\u003e Self {\n        Self {\n            token_id,\n            max_spread_pct,\n            min_order_size,\n            max_order_size,\n            stale_threshold,\n            last_best_bid: None,\n            last_best_ask: None,\n            last_update: 0,\n            book_manager: OrderBookManager::new(100),\n            fill_engine: FillEngine::new(\n                min_order_size,\n                dec!(2.0), // 2% max slippage\n                5,          // 5 bps fee rate\n            ),\n            stats: SnipeStats::default(),\n        }\n    }\n\n    /// Process a market data update\n    pub fn process_update(\u0026mut self, message: StreamMessage) -\u003e Result\u003c()\u003e {\n        match message {\n            StreamMessage::BookUpdate { data } =\u003e {\n                if data.token_id == self.token_id {\n                    self.process_book_update(data)?;\n                }\n            }\n            StreamMessage::Trade { data } =\u003e {\n                if data.token_id == self.token_id {\n                    self.process_trade(data)?;\n                }\n            }\n            StreamMessage::Heartbeat { timestamp: _ } =\u003e {\n                self.check_stale_quotes()?;\n            }\n            _ =\u003e {}\n        }\n        Ok(())\n    }\n\n    /// Process order book update\n    fn process_book_update(\u0026mut self, delta: OrderDelta) -\u003e Result\u003c()\u003e {\n        // Ensure book exists\n        self.book_manager.get_or_create_book(\u0026self.token_id)?;\n        \n        // Update local order book\n        self.book_manager.apply_delta(delta.clone())?;\n\n        // Get current book state\n        let book = self.book_manager.get_book(\u0026self.token_id)?;\n        \n        // Update best prices\n        if let Some(best_bid) = book.bids.first() {\n            self.last_best_bid = Some(best_bid.price);\n        }\n        if let Some(best_ask) = book.asks.first() {\n            self.last_best_ask = Some(best_ask.price);\n        }\n        \n        self.last_update = time::now_secs();\n\n        // Check for trading opportunities\n        self.check_opportunities()?;\n\n        Ok(())\n    }\n\n    /// Process trade update\n    fn process_trade(\u0026mut self, fill: FillEvent) -\u003e Result\u003c()\u003e {\n        info!(\n            \"Trade: {} {} @ {} (size: {})\",\n            fill.side.as_str(),\n            fill.token_id,\n            fill.price,\n            fill.size\n        );\n\n        // Update statistics\n        self.stats.total_volume += fill.size;\n        \n        // Calculate P\u0026L if this was our trade\n        // (In a real implementation, you'd track your own orders)\n        \n        Ok(())\n    }\n\n    /// Check for trading opportunities\n    fn check_opportunities(\u0026mut self) -\u003e Result\u003c()\u003e {\n        let (bid, ask) = match (self.last_best_bid, self.last_best_ask) {\n            (Some(bid), Some(ask)) =\u003e (bid, ask),\n            _ =\u003e return Ok(()), // No liquidity\n        };\n\n        // Calculate spread\n        let spread_pct = match (bid, ask) {\n            (bid, ask) if bid \u003e dec!(0) \u0026\u0026 ask \u003e bid =\u003e {\n                (ask - bid) / bid * dec!(100)\n            }\n            _ =\u003e return Ok(()),\n        };\n\n        // Check if spread is within our target\n        if spread_pct \u003c= self.max_spread_pct {\n            self.stats.opportunities_detected += 1;\n            \n            info!(\n                \"Opportunity detected: spread {}% (target: {}%)\",\n                spread_pct, self.max_spread_pct\n            );\n\n            // Execute snipe order\n            self.execute_snipe_order(bid, ask)?;\n        }\n\n        Ok(())\n    }\n\n    /// Execute a snipe order\n    fn execute_snipe_order(\u0026mut self, bid: Decimal, ask: Decimal) -\u003e Result\u003c()\u003e {\n        // Calculate order size (random between min and max)\n        let random_factor = Decimal::from(rand::random::\u003cu64\u003e() % 100) / Decimal::from(100);\n        let size = self.min_order_size + \n            (self.max_order_size - self.min_order_size) * random_factor;\n\n        // Determine side based on market conditions\n        let side = if bid \u003e ask {\n            Side::SELL // Crossed market, sell\n        } else {\n            Side::BUY // Normal market, buy\n        };\n\n        // Create market order request\n        let request = MarketOrderRequest {\n            token_id: self.token_id.clone(),\n            side,\n            amount: size,\n            slippage_tolerance: Some(dec!(1.0)), // 1% slippage tolerance\n            client_id: Some(format!(\"snipe_{}\", time::now_millis())),\n        };\n\n        // Get current book for execution simulation\n        let book = self.book_manager.get_book(\u0026self.token_id)?;\n        let mut book_impl = polyfill_rs::book::OrderBook::new(self.token_id.clone(), 100);\n        \n        // Convert to internal book format\n        for level in \u0026book.bids {\n            book_impl.apply_delta(OrderDelta {\n                token_id: self.token_id.clone(),\n                timestamp: chrono::Utc::now(),\n                side: Side::BUY,\n                price: level.price,\n                size: level.size,\n                sequence: 1,\n            })?;\n        }\n        \n        for level in \u0026book.asks {\n            book_impl.apply_delta(OrderDelta {\n                token_id: self.token_id.clone(),\n                timestamp: chrono::Utc::now(),\n                side: Side::SELL,\n                price: level.price,\n                size: level.size,\n                sequence: 2,\n            })?;\n        }\n\n        // Execute order\n        let start_time = std::time::Instant::now();\n        let result = self.fill_engine.execute_market_order(\u0026request, \u0026book_impl)?;\n        let fill_time = start_time.elapsed().as_millis() as f64;\n\n        // Update statistics\n        self.stats.orders_placed += 1;\n        if result.status == FillStatus::Filled {\n            self.stats.orders_filled += 1;\n        }\n\n        // Update average fill time\n        let total_time = self.stats.avg_fill_time_ms * (self.stats.orders_filled - 1) as f64 + fill_time;\n        self.stats.avg_fill_time_ms = total_time / self.stats.orders_filled as f64;\n\n        info!(\n            \"Snipe order executed: {} {} @ {} (fill time: {}ms)\",\n            result.total_size,\n            side.as_str(),\n            result.average_price,\n            fill_time\n        );\n\n        Ok(())\n    }\n\n    /// Check for stale quotes\n    fn check_stale_quotes(\u0026mut self) -\u003e Result\u003c()\u003e {\n        let now = time::now_secs();\n        let age = now.saturating_sub(self.last_update);\n\n        if age \u003e self.stale_threshold {\n            warn!(\n                \"Stale quotes detected: {}s old (threshold: {}s)\",\n                age, self.stale_threshold\n            );\n\n            // In a real implementation, you might:\n            // - Cancel pending orders\n            // - Switch to a different data source\n            // - Reduce position sizes\n            // - Stop trading temporarily\n        }\n\n        Ok(())\n    }\n\n    /// Get current statistics\n    pub fn get_stats(\u0026self) -\u003e \u0026SnipeStats {\n        \u0026self.stats\n    }\n}\n\n/// Mock market data generator for testing\nstruct MockMarketData {\n    token_id: String,\n    base_price: Decimal,\n    volatility: Decimal,\n    sequence: u64,\n}\n\nimpl MockMarketData {\n    fn new(token_id: String, base_price: Decimal) -\u003e Self {\n        Self {\n            token_id,\n            base_price,\n            volatility: dec!(0.01), // 1% volatility\n            sequence: 0,\n        }\n    }\n\n    fn generate_update(\u0026mut self) -\u003e StreamMessage {\n        self.sequence += 1;\n\n        // Generate random price movement\n        let random_factor = Decimal::from(rand::random::\u003ci64\u003e() % 100 - 50) / Decimal::from(100);\n        let volatility_f64 = self.volatility.to_f64().unwrap_or(0.01);\n        let price_change = random_factor * Decimal::from(2) * self.volatility;\n        let new_price = self.base_price * (Decimal::from(1) + price_change);\n\n        // Generate order book update\n        let side = if rand::random::\u003cbool\u003e() { Side::BUY } else { Side::SELL };\n        let size = Decimal::from(rand::random::\u003cu64\u003e() % 1000 + 100);\n\n        StreamMessage::BookUpdate {\n            data: OrderDelta {\n                token_id: self.token_id.clone(),\n                timestamp: chrono::Utc::now(),\n                side,\n                price: new_price,\n                size,\n                sequence: self.sequence,\n            }\n        }\n    }\n}\n\n#[tokio::main]\nasync fn main() -\u003e Result\u003c()\u003e {\n    // Initialize logging\n    tracing_subscriber::fmt::init();\n\n    info!(\"Starting snipe trading example...\");\n\n    // Create snipe strategy\n    let mut strategy = SnipeStrategy::new(\n        \"12345\".to_string(), // Example token ID\n        dec!(2.0),           // 2% max spread\n        dec!(10),            // Min order size\n        dec!(100),           // Max order size\n        5,                   // 5 second stale threshold\n    );\n\n    // Create mock market data generator\n    let mut market_data = MockMarketData::new(\n        \"12345\".to_string(),\n        dec!(0.5), // Base price $0.50\n    );\n\n    // Simulate market data stream\n    let mut message_count = 0;\n    let max_messages = 100;\n\n    while message_count \u003c max_messages {\n        // Generate market update\n        let update = market_data.generate_update();\n        \n        // Process update\n        if let Err(e) = strategy.process_update(update) {\n            error!(\"Error processing update: {}\", e);\n        }\n\n        // Print statistics every 10 messages\n        if message_count % 10 == 0 {\n            let stats = strategy.get_stats();\n            info!(\n                \"Stats: {} opportunities, {} orders placed, {} filled, avg fill time: {:.2}ms\",\n                stats.opportunities_detected,\n                stats.orders_placed,\n                stats.orders_filled,\n                stats.avg_fill_time_ms\n            );\n        }\n\n        message_count += 1;\n        sleep(Duration::from_millis(100)).await; // 100ms between updates\n    }\n\n    // Print final statistics\n    let final_stats = strategy.get_stats();\n    info!(\"Final statistics:\");\n    info!(\"  Opportunities detected: {}\", final_stats.opportunities_detected);\n    info!(\"  Orders placed: {}\", final_stats.orders_placed);\n    info!(\"  Orders filled: {}\", final_stats.orders_filled);\n    info!(\"  Total volume: {}\", final_stats.total_volume);\n    info!(\"  Average fill time: {:.2}ms\", final_stats.avg_fill_time_ms);\n\n    info!(\"Snipe trading example completed!\");\n    Ok(())\n} ","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","config.rs"],"content":"pub struct ContractConfig {\n    pub exchange: String,\n    pub collateral: String,\n    pub conditional_tokens: String,\n}\n\npub fn get_contract_config(chain_id: u64, neg_risk: bool) -\u003e Option\u003cContractConfig\u003e {\n    match neg_risk {\n        true =\u003e {\n            if chain_id == 137 {\n                return Some(ContractConfig {\n                    exchange: \"0xC5d563A36AE78145C45a50134d48A1215220f80a\".to_owned(),\n                    collateral: \"0x2791bca1f2de4661ed88a30c99a7a9449aa84174\".to_owned(),\n                    conditional_tokens: \"0x4D97DCd97eC945f40cF65F87097ACe5EA0476045\".to_owned(),\n                });\n            } else if chain_id == 80002 {\n                return Some(ContractConfig {\n                    exchange: \"0xd91E80cF2E7be2e162c6513ceD06f1dD0dA35296\".to_owned(),\n                    collateral: \"0x9c4e1703476e875070ee25b56a58b008cfb8fa78\".to_owned(),\n                    conditional_tokens: \"0x69308FB512518e39F9b16112fA8d994F4e2Bf8bB\".to_owned(),\n                });\n            }\n            None\n        }\n        false =\u003e {\n            if chain_id == 137 {\n                return Some(ContractConfig {\n                    exchange: \"0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E\".to_owned(),\n                    collateral: \"0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174\".to_owned(),\n                    conditional_tokens: \"0x4D97DCd97eC945f40cF65F87097ACe5EA0476045\".to_owned(),\n                });\n            } else if chain_id == 80002 {\n                return Some(ContractConfig {\n                    exchange: \"0xdFE02Eb6733538f8Ea35D585af8DE5958AD99E40\".to_owned(),\n                    collateral: \"0x9c4e1703476e875070ee25b56a58b008cfb8fa78\".to_owned(),\n                    conditional_tokens: \"0x69308FB512518e39F9b16112fA8d994F4e2Bf8bB\".to_owned(),\n                });\n            }\n            None\n        }\n    }\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","data.rs"],"content":"use crate::Decimal;\n\nuse crate::SignedOrderRequest;\nuse alloy_primitives::U256;\nuse serde::{Deserialize, Deserializer, Serialize};\nuse serde_json::Value;\nuse std::fmt::Display;\nuse std::str::FromStr;\n\nconst ZERO_ADDRESS: \u0026str = \"0x0000000000000000000000000000000000000000\";\n\npub enum AssetType {\n    COLLATERAL,\n    CONDITIONAL,\n}\n\n#[allow(clippy::to_string_trait_impl)]\nimpl ToString for AssetType {\n    fn to_string(\u0026self) -\u003e String {\n        match self {\n            AssetType::COLLATERAL =\u003e \"COLLATERAL\".to_string(),\n            AssetType::CONDITIONAL =\u003e \"CONDITIONAL\".to_string(),\n        }\n    }\n}\n\n#[derive(Default)]\npub struct BalanceAllowanceParams {\n    pub asset_type: Option\u003cAssetType\u003e,\n    pub token_id: Option\u003cString\u003e,\n    pub signature_type: Option\u003cu8\u003e,\n}\n\nimpl BalanceAllowanceParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, String)\u003e {\n        let mut params = Vec::with_capacity(3);\n\n        if let Some(x) = \u0026self.asset_type {\n            params.push((\"asset_type\", x.to_string()));\n        }\n\n        if let Some(x) = \u0026self.token_id {\n            params.push((\"token_id\", x.to_string()));\n        }\n\n        if let Some(x) = \u0026self.signature_type {\n            params.push((\"signature_type\", x.to_string()));\n        }\n        params\n    }\n}\n\nimpl BalanceAllowanceParams {\n    pub fn set_signature_type(\u0026mut self, s: u8) {\n        self.signature_type = Some(s);\n    }\n}\n\n#[derive(Debug)]\npub struct TradeParams {\n    pub id: Option\u003cString\u003e,\n    pub maker_address: Option\u003cString\u003e,\n    pub market: Option\u003cString\u003e,\n    pub asset_id: Option\u003cString\u003e,\n    pub before: Option\u003cu64\u003e,\n    pub after: Option\u003cu64\u003e,\n}\n\nimpl TradeParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, String)\u003e {\n        let mut params = Vec::with_capacity(4);\n\n        if let Some(x) = \u0026self.id {\n            params.push((\"id\", x.clone()));\n        }\n\n        if let Some(x) = \u0026self.asset_id {\n            params.push((\"asset_id\", x.clone()));\n        }\n\n        if let Some(x) = \u0026self.market {\n            params.push((\"market\", x.clone()));\n        }\n        if let Some(x) = \u0026self.before {\n            params.push((\"before\", x.to_string()));\n        }\n        if let Some(x) = \u0026self.after {\n            params.push((\"after\", x.to_string()));\n        }\n        params\n    }\n}\n\n#[derive(Debug, Deserialize)]\npub struct OpenOrder {\n    pub associate_trades: Vec\u003cString\u003e,\n    pub id: String,\n    pub status: String,\n    pub market: String,\n\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub original_size: Decimal,\n    pub outcome: String,\n    pub maker_address: String,\n    pub owner: String,\n\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    pub side: Side,\n\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size_matched: Decimal,\n    pub asset_id: String,\n    #[serde(deserialize_with = \"deserialize_number_from_string\")]\n    pub expiration: u64,\n    #[serde(rename = \"type\")]\n    pub order_type: OrderType,\n    #[serde(deserialize_with = \"deserialize_number_from_string\")]\n    pub created_at: u64,\n}\n\n#[derive(Debug)]\npub struct OpenOrderParams {\n    pub id: Option\u003cString\u003e,\n    pub asset_id: Option\u003cString\u003e,\n    pub market: Option\u003cString\u003e,\n}\n\nimpl OpenOrderParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, \u0026String)\u003e {\n        let mut params = Vec::with_capacity(4);\n\n        if let Some(x) = \u0026self.id {\n            params.push((\"id\", x));\n        }\n\n        if let Some(x) = \u0026self.asset_id {\n            params.push((\"asset_id\", x));\n        }\n\n        if let Some(x) = \u0026self.market {\n            params.push((\"market\", x));\n        }\n        params\n    }\n}\n\nfn deserialize_number_from_string\u003c'de, T, D\u003e(deserializer: D) -\u003e Result\u003cT, D::Error\u003e\nwhere\n    D: Deserializer\u003c'de\u003e,\n    T: FromStr + serde::Deserialize\u003c'de\u003e,\n    \u003cT as FromStr\u003e::Err: Display,\n{\n    #[derive(Deserialize)]\n    #[serde(untagged)]\n    enum StringOrInt\u003cT\u003e {\n        String(String),\n        Number(T),\n    }\n\n    match StringOrInt::\u003cT\u003e::deserialize(deserializer)? {\n        StringOrInt::String(s) =\u003e s.parse::\u003cT\u003e().map_err(serde::de::Error::custom),\n        StringOrInt::Number(i) =\u003e Ok(i),\n    }\n}\n\n#[derive(Debug, Serialize)]\n#[serde(rename_all = \"camelCase\")]\npub struct PostOrder {\n    order: SignedOrderRequest,\n    owner: String,\n    order_type: OrderType,\n}\n\nimpl PostOrder {\n    pub fn new(order: SignedOrderRequest, owner: String, order_type: OrderType) -\u003e Self {\n        PostOrder {\n            order,\n            owner,\n            order_type,\n        }\n    }\n}\n\n#[derive(Debug)]\npub struct OrderArgs {\n    pub token_id: String,\n    pub price: Decimal,\n    pub size: Decimal,\n    pub side: Side,\n}\n\n#[derive(Debug, Deserialize)]\npub struct OrderBookSummary {\n    pub market: String,\n    pub asset_id: String,\n    pub hash: String,\n    #[serde(deserialize_with = \"deserialize_number_from_string\")]\n    pub timestamp: u64,\n    pub bids: Vec\u003cOrderSummary\u003e,\n    pub asks: Vec\u003cOrderSummary\u003e,\n}\n\n#[derive(Debug)]\npub struct MarketOrderArgs {\n    pub token_id: String,\n    pub amount: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct OrderSummary {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size: Decimal,\n}\n\nimpl OrderArgs {\n    pub fn new(token_id: \u0026str, price: Decimal, size: Decimal, side: Side) -\u003e Self {\n        OrderArgs {\n            token_id: token_id.to_owned(),\n            price,\n            size,\n            side,\n        }\n    }\n}\n\n#[derive(Debug)]\npub struct ExtraOrderArgs {\n    pub fee_rate_bps: u32,\n    pub nonce: U256,\n    pub taker: String,\n}\n\nimpl Default for ExtraOrderArgs {\n    fn default() -\u003e Self {\n        ExtraOrderArgs {\n            fee_rate_bps: 0,\n            nonce: U256::ZERO,\n            taker: ZERO_ADDRESS.into(),\n        }\n    }\n}\n\n#[derive(Debug, Default)]\npub struct CreateOrderOptions {\n    pub tick_size: Option\u003cDecimal\u003e,\n    pub neg_risk: Option\u003cbool\u003e,\n}\n\n#[derive(Debug, Deserialize)]\npub struct ApiKeysResponse {\n    #[serde(rename = \"apiKeys\")]\n    pub api_keys: Vec\u003cString\u003e,\n}\n\n#[derive(Debug, Deserialize, Serialize)]\npub struct MidpointResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub mid: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct PriceResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct SpreadResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub spread: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct TickSizeResponse {\n    pub minimum_tick_size: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct NegRiskResponse {\n    pub neg_risk: bool,\n}\n\n#[derive(Debug, Serialize, Deserialize, Clone, Copy, Hash, Eq, PartialEq)]\npub enum OrderType {\n    GTC,\n    FOK,\n    GTD,\n}\n\nimpl OrderType {\n    pub fn as_str(\u0026self) -\u003e \u0026'static str {\n        match self {\n            OrderType::GTC =\u003e \"GTC\",\n            OrderType::FOK =\u003e \"FOK\",\n            OrderType::GTD =\u003e \"GTD\",\n        }\n    }\n}\n\n#[derive(Debug, Serialize, Deserialize, Clone, Copy, Hash, Eq, PartialEq)]\npub enum Side {\n    BUY = 0,\n    SELL = 1,\n}\n\nimpl Side {\n    pub fn as_str(\u0026self) -\u003e \u0026'static str {\n        match self {\n            Side::BUY =\u003e \"BUY\",\n            Side::SELL =\u003e \"SELL\",\n        }\n    }\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct BookParams {\n    pub token_id: String,\n    pub side: Side,\n}\n\n#[derive(Default, Debug, Serialize, Deserialize)]\npub struct ApiCreds {\n    #[serde(rename = \"apiKey\")]\n    pub api_key: String,\n    pub secret: String,\n    pub passphrase: String,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct MarketsResponse {\n    pub limit: Decimal,\n    pub count: Decimal,\n    pub next_cursor: Option\u003cString\u003e,\n    pub data: Vec\u003cMarket\u003e,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct SimplifiedMarketsResponse {\n    pub limit: Decimal,\n    pub count: Decimal,\n    pub next_cursor: Option\u003cString\u003e,\n    pub data: Vec\u003cSimplifiedMarket\u003e,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct Market {\n    pub condition_id: String,\n    pub tokens: [Token; 2],\n    pub rewards: Rewards,\n    pub min_incentive_size: Option\u003cString\u003e,\n    pub max_incentive_spread: Option\u003cString\u003e,\n    pub active: bool,\n    pub closed: bool,\n\n    pub question_id: String,\n    pub minimum_order_size: Decimal,\n    pub minimum_tick_size: Decimal,\n    pub description: String,\n    pub category: Option\u003cString\u003e,\n    pub end_date_iso: Option\u003cString\u003e,\n    pub game_start_time: Option\u003cString\u003e,\n    pub question: String,\n    pub market_slug: String,\n    pub seconds_delay: Decimal,\n    pub icon: String,\n    pub fpmm: String,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct SimplifiedMarket {\n    pub condition_id: String,\n    pub tokens: [Token; 2],\n    pub rewards: Rewards,\n    pub min_incentive_size: Option\u003cString\u003e,\n    pub max_incentive_spread: Option\u003cString\u003e,\n    pub active: bool,\n    pub closed: bool,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct Token {\n    pub token_id: String,\n    pub outcome: String,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct Rewards {\n    pub rates: Option\u003cValue\u003e,\n    pub min_size: Decimal,\n    pub max_spread: Decimal,\n    pub event_start_date: Option\u003cString\u003e,\n    pub event_end_date: Option\u003cString\u003e,\n    pub in_game_multiplier: Option\u003cDecimal\u003e,\n    pub reward_epoch: Option\u003cDecimal\u003e,\n}\n","traces":[{"line":161,"address":[],"length":0,"stats":{"Line":0}},{"line":162,"address":[],"length":0,"stats":{"Line":0}},{"line":163,"address":[],"length":0,"stats":{"Line":0}}],"covered":0,"coverable":3},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","eth_utils.rs"],"content":"use crate::ClientResult;\nuse alloy_primitives::U256;\nuse alloy_primitives::{hex::encode_prefixed, Address};\nuse alloy_signer::{Signer, SignerSync};\nuse alloy_sol_types::{eip712_domain, sol};\nuse anyhow::Context;\n\npub trait EthSigner: Signer + SignerSync + Send + Sync {}\n\nimpl\u003cT: Signer + SignerSync + Send + Sync\u003e EthSigner for T {}\n\nsol! {\n    struct ClobAuth {\n        address address;\n        string timestamp;\n        uint256 nonce;\n        string message;\n    }\n}\n\nsol! {\n    struct Order {\n        uint256 salt;\n        address maker;\n        address signer;\n        address taker;\n        uint256 tokenId;\n        uint256 makerAmount;\n        uint256 takerAmount;\n        uint256 expiration;\n        uint256 nonce;\n        uint256 feeRateBps;\n        uint8 side;\n        uint8 signatureType;\n    }\n}\n\npub fn sign_clob_auth_message(\n    signer: \u0026impl EthSigner,\n    timestamp: String,\n    nonce: U256,\n) -\u003e ClientResult\u003cString\u003e {\n    // TODO: move these constants out\n    let message = \"This message attests that I control the given wallet\".to_owned();\n    let polygon = 137;\n\n    let my_struct = ClobAuth {\n        address: signer.address(),\n        timestamp,\n        nonce,\n        message,\n    };\n\n    let my_domain = eip712_domain!(\n        name: \"ClobAuthDomain\",\n        version: \"1\",\n        chain_id: polygon,\n    );\n\n    let val = signer\n        .sign_typed_data_sync(\u0026my_struct, \u0026my_domain)\n        .context(\"Error creating EIP-712 signature\")?;\n\n    Ok(encode_prefixed(val.as_bytes()))\n}\n\npub fn sign_order_message(\n    signer: \u0026(impl EthSigner + Sized),\n    order: Order,\n    chain_id: u64,\n    verifying_contract: Address,\n) -\u003e ClientResult\u003cString\u003e {\n    let domain = eip712_domain!(\n        name: \"Polymarket CTF Exchange\",\n        version: \"1\",\n        chain_id: chain_id,\n        verifying_contract: verifying_contract,\n\n    );\n\n    let val = signer\n        .sign_typed_data_sync(\u0026order, \u0026domain)\n        .context(\"Error creating EIP-712 signature for order\")?;\n\n    Ok(encode_prefixed(val.as_bytes()))\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","headers.rs"],"content":"use crate::eth_utils::{sign_clob_auth_message, EthSigner};\nuse crate::utils::{build_hmac_signature, get_current_unix_time_secs};\nuse crate::ApiCreds;\nuse alloy_primitives::hex::encode_prefixed;\nuse alloy_primitives::U256;\nuse anyhow::Result;\nuse serde::Serialize;\nuse std::collections::HashMap;\n\nconst POLY_ADDR_HEADER: \u0026str = \"poly_address\";\nconst POLY_SIG_HEADER: \u0026str = \"poly_signature\";\nconst POLY_TS_HEADER: \u0026str = \"poly_timestamp\";\nconst POLY_NONCE_HEADER: \u0026str = \"poly_nonce\";\nconst POLY_API_KEY_HEADER: \u0026str = \"poly_api_key\";\nconst POLY_PASS_HEADER: \u0026str = \"poly_passphrase\";\n\n//TODO: Heapless for maps!\ntype Headers = HashMap\u003c\u0026'static str, String\u003e;\n\npub fn create_l1_headers(signer: \u0026impl EthSigner, nonce: Option\u003cU256\u003e) -\u003e Result\u003cHeaders\u003e {\n    let timestamp = get_current_unix_time_secs().to_string();\n    let nonce = nonce.unwrap_or(U256::ZERO);\n    let signature = sign_clob_auth_message(signer, timestamp.clone(), nonce)?;\n    let address = encode_prefixed(signer.address().as_slice());\n\n    Ok(HashMap::from([\n        (POLY_ADDR_HEADER, address),\n        (POLY_SIG_HEADER, signature),\n        (POLY_TS_HEADER, timestamp),\n        (POLY_NONCE_HEADER, nonce.to_string()),\n    ]))\n}\n\npub fn create_l2_headers\u003cT\u003e(\n    signer: \u0026impl EthSigner,\n    api_creds: \u0026ApiCreds,\n    method: \u0026str,\n    req_path: \u0026str,\n    body: Option\u003c\u0026T\u003e,\n) -\u003e Result\u003cHeaders\u003e\nwhere\n    T: ?Sized + Serialize,\n{\n    let address = encode_prefixed(signer.address().as_slice());\n    let timestamp = get_current_unix_time_secs();\n\n    let hmac_signature =\n        build_hmac_signature(\u0026api_creds.secret, timestamp, method, req_path, body)?;\n\n    Ok(HashMap::from([\n        (POLY_ADDR_HEADER, address),\n        (POLY_SIG_HEADER, hmac_signature),\n        (POLY_TS_HEADER, timestamp.to_string()),\n        (POLY_API_KEY_HEADER, api_creds.api_key.clone()),\n        (POLY_PASS_HEADER, api_creds.passphrase.clone()),\n    ]))\n}\n","traces":[{"line":44,"address":[],"length":0,"stats":{"Line":0}},{"line":45,"address":[],"length":0,"stats":{"Line":0}},{"line":47,"address":[],"length":0,"stats":{"Line":0}},{"line":48,"address":[],"length":0,"stats":{"Line":0}},{"line":50,"address":[],"length":0,"stats":{"Line":0}},{"line":51,"address":[],"length":0,"stats":{"Line":0}},{"line":52,"address":[],"length":0,"stats":{"Line":0}},{"line":53,"address":[],"length":0,"stats":{"Line":0}},{"line":54,"address":[],"length":0,"stats":{"Line":0}},{"line":55,"address":[],"length":0,"stats":{"Line":0}}],"covered":0,"coverable":10},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","lib.rs"],"content":"use alloy_primitives::hex::encode_prefixed;\npub use alloy_primitives::U256;\nuse alloy_signer_local::PrivateKeySigner;\npub use anyhow::{anyhow, Context, Result as ClientResult};\nuse config::get_contract_config;\nuse orders::OrderBuilder;\nuse orders::SignedOrderRequest;\nuse reqwest::header::HeaderName;\nuse reqwest::Client;\nuse reqwest::Method;\nuse reqwest::RequestBuilder;\nuse rust_decimal::Decimal;\npub use serde_json::Value;\nuse std::collections::HashMap;\n\n// #[cfg(test)]\n// mod tests;\n\nmod config;\nmod data;\nmod eth_utils;\nmod headers;\nmod orders;\nmod utils;\n\npub use data::*;\npub use eth_utils::EthSigner;\nuse headers::{create_l1_headers, create_l2_headers};\n\n#[derive(Default)]\npub struct ClobClient {\n    host: String,\n    http_client: Client,\n    signer: Option\u003cBox\u003cdyn EthSigner\u003e\u003e,\n    chain_id: Option\u003cu64\u003e,\n    api_creds: Option\u003cApiCreds\u003e,\n    order_builder: Option\u003cOrderBuilder\u003e,\n}\n\nconst INITIAL_CURSOR: \u0026str = \"MA==\";\nconst END_CURSOR: \u0026str = \"LTE=\";\n\nimpl ClobClient {\n    // TODO: initial headers, gzip\n    pub fn new(host: \u0026str) -\u003e Self {\n        Self {\n            host: host.to_owned(),\n            http_client: Client::new(),\n            ..Default::default()\n        }\n    }\n    pub fn with_l1_headers(host: \u0026str, key: \u0026str, chain_id: u64) -\u003e Self {\n        let signer = Box::new(\n            key.parse::\u003cPrivateKeySigner\u003e()\n                .expect(\"Invalid private key\"),\n        );\n        Self {\n            host: host.to_owned(),\n            http_client: Client::new(),\n            signer: Some(signer.clone()),\n            chain_id: Some(chain_id),\n            api_creds: None,\n            order_builder: Some(OrderBuilder::new(signer, None, None)),\n        }\n    }\n\n    pub fn with_l2_headers(host: \u0026str, key: \u0026str, chain_id: u64, api_creds: ApiCreds) -\u003e Self {\n        let signer = Box::new(\n            key.parse::\u003cPrivateKeySigner\u003e()\n                .expect(\"Invalid private key\"),\n        );\n        Self {\n            host: host.to_owned(),\n            http_client: Client::new(),\n            signer: Some(signer.clone()),\n            chain_id: Some(chain_id),\n            api_creds: Some(api_creds),\n            order_builder: Some(OrderBuilder::new(signer, None, None)),\n        }\n    }\n    pub fn set_api_creds(\u0026mut self, api_creds: ApiCreds) {\n        self.api_creds = Some(api_creds);\n    }\n\n    #[inline]\n    fn get_l1_parameters(\u0026self) -\u003e (\u0026impl EthSigner, u64) {\n        let signer = self.signer.as_ref().expect(\"Signer is not set\");\n        let chain_id = self.chain_id.expect(\"Chain id is not set\");\n        (signer, chain_id)\n    }\n\n    #[inline]\n    fn get_l2_parameters(\u0026self) -\u003e (\u0026impl EthSigner, \u0026ApiCreds) {\n        let signer = self.signer.as_ref().expect(\"Signer is not set\");\n        (\n            signer,\n            self.api_creds.as_ref().expect(\"API credentials not set.\"),\n        )\n    }\n\n    pub fn get_address(\u0026self) -\u003e Option\u003cString\u003e {\n        Some(encode_prefixed(self.signer.as_ref()?.address().as_slice()))\n    }\n\n    pub fn get_collateral_address(\u0026self) -\u003e Option\u003cString\u003e {\n        Some(get_contract_config(self.chain_id?, false)?.collateral)\n    }\n\n    pub fn get_conditional_address(\u0026self) -\u003e Option\u003cString\u003e {\n        Some(get_contract_config(self.chain_id?, false)?.conditional_tokens)\n    }\n\n    pub fn get_exchange_address(\u0026self) -\u003e Option\u003cString\u003e {\n        Some(get_contract_config(self.chain_id?, false)?.exchange)\n    }\n\n    fn create_request_with_headers(\n        \u0026self,\n        method: Method,\n        endpoint: \u0026str,\n        headers: impl Iterator\u003cItem = (\u0026'static str, String)\u003e,\n    ) -\u003e RequestBuilder {\n        let req = self\n            .http_client\n            .request(method, format!(\"{}{endpoint}\", \u0026self.host));\n\n        headers.fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v))\n    }\n\n    pub async fn get_ok(\u0026self) -\u003e bool {\n        self.http_client\n            .get(format!(\"{}/\", \u0026self.host))\n            .send()\n            .await\n            .is_ok()\n    }\n\n    pub async fn get_server_time(\u0026self) -\u003e ClientResult\u003cu64\u003e {\n        let resp = self\n            .http_client\n            .get(format!(\"{}/time\", \u0026self.host))\n            .send()\n            .await?\n            .text()\n            .await?\n            .parse::\u003cu64\u003e()?;\n        Ok(resp)\n    }\n\n    pub async fn create_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e ClientResult\u003cApiCreds\u003e {\n        let method = Method::POST;\n        let endpoint = \"/auth/api-key\";\n        let (signer, _) = self.get_l1_parameters();\n        let headers = create_l1_headers(signer, nonce)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.json::\u003cApiCreds\u003e().await?)\n    }\n\n    pub async fn derive_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e ClientResult\u003cApiCreds\u003e {\n        let method = Method::GET;\n        let endpoint = \"/auth/derive-api-key\";\n        let (signer, _) = self.get_l1_parameters();\n        let headers = create_l1_headers(signer, nonce)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.json::\u003cApiCreds\u003e().await?)\n    }\n\n    pub async fn create_or_derive_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e ClientResult\u003cApiCreds\u003e {\n        let creds = self.create_api_key(nonce).await;\n        if creds.is_err() {\n            return self.derive_api_key(nonce).await;\n        }\n        creds\n    }\n\n    pub async fn get_api_keys(\u0026self) -\u003e ClientResult\u003cVec\u003cString\u003e\u003e {\n        let method = Method::GET;\n        let endpoint = \"/auth/api-keys\";\n        let (signer, creds) = self.get_l2_parameters();\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.json::\u003cApiKeysResponse\u003e().await?.api_keys)\n    }\n\n    pub async fn delete_api_key(\u0026self) -\u003e ClientResult\u003cString\u003e {\n        let method = Method::DELETE;\n        let endpoint = \"/auth/api-key\";\n        let (signer, creds) = self.get_l2_parameters();\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.text().await?)\n    }\n\n    pub async fn get_midpoint(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cMidpointResponse\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/midpoint\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cMidpointResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_midpoints(\n        \u0026self,\n        token_ids: \u0026[String],\n    ) -\u003e ClientResult\u003cHashMap\u003cString, Decimal\u003e\u003e {\n        let v = token_ids\n            .iter()\n            .map(|b| HashMap::from([(\"token_id\", b.clone())]))\n            .collect::\u003cVec\u003cHashMap\u003c\u0026str, String\u003e\u003e\u003e();\n\n        Ok(self\n            .http_client\n            .post(format!(\"{}/midpoints\", \u0026self.host))\n            .json(\u0026v)\n            .send()\n            .await?\n            .json::\u003cHashMap\u003cString, Decimal\u003e\u003e()\n            .await?)\n    }\n\n    pub async fn get_price(\u0026self, token_id: \u0026str, side: Side) -\u003e ClientResult\u003cPriceResponse\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/price\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .query(\u0026[(\"side\", side.as_str())])\n            .send()\n            .await?\n            .json::\u003cPriceResponse\u003e()\n            .await?)\n    }\n    pub async fn get_prices(\n        \u0026self,\n        book_params: \u0026[BookParams],\n    ) -\u003e ClientResult\u003cHashMap\u003cString, HashMap\u003cSide, Decimal\u003e\u003e\u003e {\n        let v = book_params\n            .iter()\n            .map(|b| {\n                HashMap::from([\n                    (\"token_id\", b.token_id.clone()),\n                    (\"side\", b.side.as_str().to_owned()),\n                ])\n            })\n            .collect::\u003cVec\u003cHashMap\u003c\u0026str, String\u003e\u003e\u003e();\n\n        Ok(self\n            .http_client\n            .post(format!(\"{}/prices\", \u0026self.host))\n            .json(\u0026v)\n            .send()\n            .await?\n            .json::\u003cHashMap\u003cString, HashMap\u003cSide, Decimal\u003e\u003e\u003e()\n            .await?)\n    }\n\n    pub async fn get_spread(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cSpreadResponse\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/spread\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cSpreadResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_spreads(\n        \u0026self,\n        token_ids: \u0026[String],\n    ) -\u003e ClientResult\u003cHashMap\u003cString, Decimal\u003e\u003e {\n        let v = token_ids\n            .iter()\n            .map(|b| HashMap::from([(\"token_id\", b.clone())]))\n            .collect::\u003cVec\u003cHashMap\u003c\u0026str, String\u003e\u003e\u003e();\n\n        Ok(self\n            .http_client\n            .post(format!(\"{}/spreads\", \u0026self.host))\n            .json(\u0026v)\n            .send()\n            .await?\n            .json::\u003cHashMap\u003cString, Decimal\u003e\u003e()\n            .await?)\n    }\n\n    // cache\n    pub async fn get_tick_size(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cDecimal\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/tick-size\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cTickSizeResponse\u003e()\n            .await?\n            .minimum_tick_size)\n    }\n    // Cache\n    pub async fn get_neg_risk(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cbool\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/neg-risk\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cNegRiskResponse\u003e()\n            .await?\n            .neg_risk)\n    }\n\n    async fn resolve_tick_size(\n        \u0026self,\n        token_id: \u0026str,\n        tick_size: Option\u003cDecimal\u003e,\n    ) -\u003e ClientResult\u003cDecimal\u003e {\n        let min_tick_size = self\n            .get_tick_size(token_id)\n            .await\n            .context(\"Error fetching tick size\")?;\n\n        match tick_size {\n            None =\u003e Ok(min_tick_size),\n            Some(t) =\u003e {\n                if t \u003c min_tick_size {\n                    Err(anyhow!(\"Tick size {t} is smaller than min_tick_size {min_tick_size} for token_id: {token_id}\"))\n                } else {\n                    Ok(t)\n                }\n            }\n        }\n    }\n\n    async fn get_filled_order_options(\n        \u0026self,\n        token_id: \u0026str,\n        options: Option\u003c\u0026CreateOrderOptions\u003e,\n    ) -\u003e ClientResult\u003cCreateOrderOptions\u003e {\n        let (tick_size, neg_risk) = match options {\n            Some(o) =\u003e (o.tick_size, o.neg_risk),\n            None =\u003e (None, None),\n        };\n\n        let tick_size = self.resolve_tick_size(token_id, tick_size).await?;\n\n        let neg_risk = match neg_risk {\n            Some(nr) =\u003e nr,\n            None =\u003e self.get_neg_risk(token_id).await?,\n        };\n\n        Ok(CreateOrderOptions {\n            neg_risk: Some(neg_risk),\n            tick_size: Some(tick_size),\n        })\n    }\n\n    fn is_price_in_range(\u0026self, price: Decimal, tick_size: Decimal) -\u003e bool {\n        let min_price = tick_size;\n        let max_price = Decimal::ONE - tick_size;\n\n        if price \u003c min_price || price \u003e max_price {\n            return false;\n        }\n        true\n    }\n\n    pub async fn create_order(\n        \u0026self,\n        order_args: \u0026OrderArgs,\n        expiration: Option\u003cu64\u003e,\n        extras: Option\u003cExtraOrderArgs\u003e,\n        options: Option\u003c\u0026CreateOrderOptions\u003e,\n    ) -\u003e ClientResult\u003cSignedOrderRequest\u003e {\n        let (_, chain_id) = self.get_l1_parameters();\n\n        let create_order_options = self\n            .get_filled_order_options(order_args.token_id.as_ref(), options)\n            .await?;\n        let expiration = expiration.unwrap_or(0);\n        let extras = extras.unwrap_or_default();\n\n        if !self.is_price_in_range(\n            order_args.price,\n            create_order_options.tick_size.expect(\"Should be filled\"),\n        ) {\n            return Err(anyhow!(\"Price is not in range of tick_size\"));\n        }\n\n        self.order_builder\n            .as_ref()\n            .expect(\"OrderBuilder not set\")\n            .create_order(\n                chain_id,\n                order_args,\n                expiration,\n                \u0026extras,\n                create_order_options,\n            )\n    }\n\n    pub async fn get_order_book(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cOrderBookSummary\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/book\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cOrderBookSummary\u003e()\n            .await?)\n    }\n\n    pub async fn get_order_books(\n        \u0026self,\n        token_ids: \u0026[String],\n    ) -\u003e ClientResult\u003cVec\u003cOrderBookSummary\u003e\u003e {\n        let v = token_ids\n            .iter()\n            .map(|b| HashMap::from([(\"token_id\", b.clone())]))\n            .collect::\u003cVec\u003cHashMap\u003c\u0026str, String\u003e\u003e\u003e();\n\n        Ok(self\n            .http_client\n            .post(format!(\"{}/books\", \u0026self.host))\n            .json(\u0026v)\n            .send()\n            .await?\n            .json::\u003cVec\u003cOrderBookSummary\u003e\u003e()\n            .await?)\n    }\n\n    async fn calculate_market_price(\n        \u0026self,\n        token_id: \u0026str,\n        side: Side,\n        amount: Decimal,\n    ) -\u003e ClientResult\u003cDecimal\u003e {\n        let book = self.get_order_book(token_id).await?;\n        let ob = self\n            .order_builder\n            .as_ref()\n            .expect(\"No orderBuilder set for client!\");\n        match side {\n            Side::BUY =\u003e ob.calculate_market_price(\u0026book.asks, amount),\n            Side::SELL =\u003e ob.calculate_market_price(\u0026book.bids, amount),\n        }\n    }\n\n    pub async fn create_market_order(\n        \u0026self,\n        order_args: \u0026MarketOrderArgs,\n        extras: Option\u003cExtraOrderArgs\u003e,\n        options: Option\u003c\u0026CreateOrderOptions\u003e,\n    ) -\u003e ClientResult\u003cSignedOrderRequest\u003e {\n        let (_, chain_id) = self.get_l1_parameters();\n\n        let create_order_options = self\n            .get_filled_order_options(order_args.token_id.as_ref(), options)\n            .await?;\n\n        let extras = extras.unwrap_or_default();\n        let price = self\n            .calculate_market_price(\u0026order_args.token_id, Side::BUY, order_args.amount)\n            .await?;\n        if !self.is_price_in_range(\n            price,\n            create_order_options.tick_size.expect(\"Should be filled\"),\n        ) {\n            return Err(anyhow!(\"Price is not in range of tick_size\"));\n        }\n\n        self.order_builder\n            .as_ref()\n            .expect(\"OrderBuilder not set\")\n            .create_market_order(chain_id, order_args, price, \u0026extras, create_order_options)\n    }\n\n    pub async fn post_order(\n        \u0026self,\n        order: SignedOrderRequest,\n        order_type: OrderType,\n    ) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let body = PostOrder::new(order, creds.api_key.clone(), order_type);\n\n        let method = Method::POST;\n        let endpoint = \"/order\";\n\n        let headers = create_l2_headers(signer, creds, method.as_str(), endpoint, Some(\u0026body))?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.json(\u0026body).send().await?.json::\u003cValue\u003e().await?)\n    }\n\n    pub async fn create_and_post_order(\u0026self, order_args: \u0026OrderArgs) -\u003e ClientResult\u003cValue\u003e {\n        let order = self.create_order(order_args, None, None, None).await?;\n        self.post_order(order, OrderType::GTC).await\n    }\n\n    pub async fn cancel(\u0026self, order_id: \u0026str) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let body = HashMap::from([(\"orderID\", order_id)]);\n\n        let method = Method::DELETE;\n        let endpoint = \"/order\";\n\n        let headers = create_l2_headers(signer, creds, method.as_str(), endpoint, Some(\u0026body))?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.json(\u0026body).send().await?.json::\u003cValue\u003e().await?)\n    }\n\n    pub async fn cancel_orders(\u0026self, order_ids: \u0026[String]) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::DELETE;\n        let endpoint = \"/orders\";\n\n        let headers = create_l2_headers(signer, creds, method.as_str(), endpoint, Some(order_ids))?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.json(order_ids).send().await?.json::\u003cValue\u003e().await?)\n    }\n\n    pub async fn cancel_all(\u0026self) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::DELETE;\n        let endpoint = \"/cancel-all\";\n\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.json::\u003cValue\u003e().await?)\n    }\n\n    pub async fn cancel_market_orders(\n        \u0026self,\n        market: Option\u003c\u0026str\u003e,\n        asset_id: Option\u003c\u0026str\u003e,\n    ) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::DELETE;\n        let endpoint = \"/cancel-market-orders\";\n        let body = HashMap::from([\n            (\"market\", market.unwrap_or(\"\")),\n            (\"asset_id\", asset_id.unwrap_or(\"\")),\n        ]);\n\n        let headers = create_l2_headers(signer, creds, method.as_str(), endpoint, Some(\u0026body))?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.json(\u0026body).send().await?.json::\u003cValue\u003e().await?)\n    }\n\n    pub async fn get_orders(\n        \u0026self,\n        params: Option\u003c\u0026OpenOrderParams\u003e,\n        next_cursor: Option\u003c\u0026str\u003e,\n    ) -\u003e ClientResult\u003cVec\u003cOpenOrder\u003e\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::GET;\n        let endpoint = \"/data/orders\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let query_params = match params {\n            None =\u003e Vec::new(),\n            Some(p) =\u003e p.to_query_params(),\n        };\n\n        let mut next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR).to_string();\n        let mut output = Vec::new();\n        while next_cursor != END_CURSOR {\n            let req = self\n                .http_client\n                .request(method.clone(), format!(\"{}{endpoint}\", \u0026self.host))\n                .query(\u0026query_params)\n                .query(\u0026[\"next_cursor\", \u0026next_cursor]);\n\n            let r = headers\n                .clone()\n                .into_iter()\n                .fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v));\n\n            let resp = r.send().await?.json::\u003cValue\u003e().await?;\n            let new_cursor = resp[\"next_cursor\"]\n                .as_str()\n                .expect(\"Failed to parse next cursor\")\n                .to_owned();\n\n            next_cursor = new_cursor;\n\n            let results = resp[\"data\"].clone();\n            let o = serde_json::from_value::\u003cVec\u003cOpenOrder\u003e\u003e(results)\n                .expect(\"Failed to parse data from order response\");\n            output.extend(o);\n        }\n        Ok(output)\n    }\n\n    pub async fn get_order(\u0026self, order_id: \u0026str) -\u003e ClientResult\u003cOpenOrder\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::GET;\n        let endpoint = \u0026format!(\"/data/order/{order_id}\");\n\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.json::\u003cOpenOrder\u003e().await?)\n    }\n\n    pub async fn get_last_trade_price(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cValue\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/last-trade-price\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn get_last_trade_prices(\u0026self, token_ids: \u0026[String]) -\u003e ClientResult\u003cValue\u003e {\n        let v = token_ids\n            .iter()\n            .map(|b| HashMap::from([(\"token_id\", b.clone())]))\n            .collect::\u003cVec\u003cHashMap\u003c\u0026str, String\u003e\u003e\u003e();\n\n        Ok(self\n            .http_client\n            .post(format!(\"{}/last-trades-prices\", \u0026self.host))\n            .json(\u0026v)\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn get_trades(\n        \u0026self,\n        trade_params: Option\u003c\u0026TradeParams\u003e,\n        next_cursor: Option\u003c\u0026str\u003e,\n    ) -\u003e ClientResult\u003cVec\u003cValue\u003e\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::GET;\n        let endpoint = \"/data/trades\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let query_params = match trade_params {\n            None =\u003e Vec::new(),\n            Some(p) =\u003e p.to_query_params(),\n        };\n\n        let mut next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR).to_string();\n\n        let mut output = Vec::new();\n        while next_cursor != END_CURSOR {\n            let req = self\n                .http_client\n                .request(method.clone(), format!(\"{}{endpoint}\", \u0026self.host))\n                .query(\u0026query_params)\n                .query(\u0026[\"next_cursor\", \u0026next_cursor]);\n\n            let r = headers\n                .clone()\n                .into_iter()\n                .fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v));\n\n            let resp = r.send().await?.json::\u003cValue\u003e().await?;\n            let new_cursor = resp[\"next_cursor\"]\n                .as_str()\n                .expect(\"Failed to parse next cursor\")\n                .to_owned();\n\n            next_cursor = new_cursor;\n\n            let results = resp[\"data\"].clone();\n            output.push(results);\n        }\n        Ok(output)\n    }\n\n    pub async fn get_notifications(\u0026self) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::GET;\n        let endpoint = \"/notifications\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req\n            .query(\u0026[(\n                \"signature_type\",\n                \u0026self\n                    .order_builder\n                    .as_ref()\n                    .expect(\"Orderbuilder not set\")\n                    .get_sig_type(),\n            )])\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn drop_notifications(\u0026self, ids: \u0026[String]) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::DELETE;\n        let endpoint = \"/notifications\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req\n            .query(\u0026[(\"ids\", ids.join(\",\"))])\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn get_balance_allowance(\n        \u0026self,\n        params: Option\u003cBalanceAllowanceParams\u003e,\n    ) -\u003e ClientResult\u003cValue\u003e {\n        let mut params = params.unwrap_or_default();\n        if params.signature_type.is_none() {\n            params.set_signature_type(\n                self.order_builder\n                    .as_ref()\n                    .expect(\"Orderbuilder not set\")\n                    .get_sig_type(),\n            )\n        }\n\n        let query_params = params.to_query_params();\n\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::GET;\n        let endpoint = \"/balance-allowance\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n        Ok(req\n            .query(\u0026query_params)\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn update_balance_allowance(\n        \u0026self,\n        params: Option\u003cBalanceAllowanceParams\u003e,\n    ) -\u003e ClientResult\u003cValue\u003e {\n        let mut params = params.unwrap_or_default();\n        if params.signature_type.is_none() {\n            params.set_signature_type(\n                self.order_builder\n                    .as_ref()\n                    .expect(\"Orderbuilder not set\")\n                    .get_sig_type(),\n            )\n        }\n\n        let query_params = params.to_query_params();\n\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::GET;\n        let endpoint = \"/balance-allowance/update\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n        Ok(req\n            .query(\u0026query_params)\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn is_order_scoring(\u0026self, order_id: \u0026str) -\u003e ClientResult\u003cbool\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::GET;\n        let endpoint = \"/order-scoring\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req\n            .query(\u0026[(\"order_id\", order_id)])\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?[\"scoring\"]\n            .as_bool()\n            .expect(\"Unknown scoring value\"))\n    }\n\n    pub async fn are_orders_scoring(\n        \u0026self,\n        order_ids: \u0026[\u0026str],\n    ) -\u003e ClientResult\u003cHashMap\u003cString, bool\u003e\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::POST;\n        let endpoint = \"/orders-scoring\";\n\n        let headers = create_l2_headers(signer, creds, method.as_str(), endpoint, Some(order_ids))?;\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req\n            .json(order_ids)\n            .send()\n            .await?\n            .json::\u003cHashMap\u003cString, bool\u003e\u003e()\n            .await?)\n    }\n\n    pub async fn get_sampling_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e ClientResult\u003cMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR);\n\n        Ok(self\n            .http_client\n            .get(format!(\"{}/sampling-markets\", \u0026self.host))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await?\n            .json::\u003cMarketsResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_sampling_simplified_markets(\n        \u0026self,\n        next_cursor: Option\u003c\u0026str\u003e,\n    ) -\u003e ClientResult\u003cSimplifiedMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR);\n\n        Ok(self\n            .http_client\n            .get(format!(\"{}/sampling-simplified-markets\", \u0026self.host))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await?\n            .json::\u003cSimplifiedMarketsResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e ClientResult\u003cMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR);\n\n        Ok(self\n            .http_client\n            .get(format!(\"{}/markets\", \u0026self.host))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await?\n            .json::\u003cMarketsResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_simplified_markets(\n        \u0026self,\n        next_cursor: Option\u003c\u0026str\u003e,\n    ) -\u003e ClientResult\u003cSimplifiedMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR);\n\n        Ok(self\n            .http_client\n            .get(format!(\"{}/simplified-markets\", \u0026self.host))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await?\n            .json::\u003cSimplifiedMarketsResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_market(\u0026self, condition_id: \u0026str) -\u003e ClientResult\u003cMarket\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/markets/{condition_id}\", \u0026self.host))\n            .send()\n            .await?\n            .json::\u003cMarket\u003e()\n            .await?)\n    }\n\n    pub async fn get_market_trades_events(\u0026self, condition_id: \u0026str) -\u003e ClientResult\u003cValue\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\n                \"{}/live-activity/events/{condition_id}\",\n                \u0026self.host\n            ))\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n}\n","traces":[{"line":86,"address":[],"length":0,"stats":{"Line":0}},{"line":87,"address":[],"length":0,"stats":{"Line":0}},{"line":88,"address":[],"length":0,"stats":{"Line":0}},{"line":89,"address":[],"length":0,"stats":{"Line":0}},{"line":93,"address":[],"length":0,"stats":{"Line":0}},{"line":94,"address":[],"length":0,"stats":{"Line":0}},{"line":96,"address":[],"length":0,"stats":{"Line":0}},{"line":97,"address":[],"length":0,"stats":{"Line":0}},{"line":123,"address":[],"length":0,"stats":{"Line":0}},{"line":124,"address":[],"length":0,"stats":{"Line":0}},{"line":125,"address":[],"length":0,"stats":{"Line":0}},{"line":127,"address":[],"length":0,"stats":{"Line":0}}],"covered":0,"coverable":12},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","orders.rs"],"content":"use alloy_primitives::Address;\nuse alloy_primitives::U256;\nuse anyhow::anyhow;\nuse anyhow::{Context, Result};\nuse rand::thread_rng;\nuse rand::Rng;\nuse rust_decimal::Decimal;\nuse rust_decimal::RoundingStrategy::{AwayFromZero, MidpointTowardZero, ToZero};\n\nuse serde::Serialize;\n\nuse crate::config::get_contract_config;\nuse crate::eth_utils::sign_order_message;\nuse crate::eth_utils::Order;\nuse crate::utils::get_current_unix_time_secs;\nuse crate::{\n    CreateOrderOptions, EthSigner, ExtraOrderArgs, MarketOrderArgs, OrderArgs, OrderSummary, Side,\n};\n\nuse std::collections::HashMap;\nuse std::str::FromStr;\nuse std::sync::LazyLock;\n\n#[derive(Copy, Clone)]\npub enum SigType {\n    // ECDSA EIP712 signatures signed by EOAs\n    Eoa = 0,\n    // EIP712 signatures signed by EOAs that own Polymarket Proxy wallets\n    PolyProxy = 1,\n    // EIP712 signatures signed by EOAs that own Polymarket Gnosis safes\n    PolyGnosisSafe = 2,\n}\n\npub struct OrderBuilder {\n    signer: Box\u003cdyn EthSigner\u003e,\n    sig_type: SigType,\n    funder: Address,\n}\n\npub struct RoundConfig {\n    price: u32,\n    size: u32,\n    amount: u32,\n}\n\nfn generate_seed() -\u003e u64 {\n    let mut rng = thread_rng();\n    let y: f64 = rng.gen();\n    let a: f64 = get_current_unix_time_secs() as f64 * y;\n    a as u64\n}\n\n#[derive(Debug, Serialize)]\n#[serde(rename_all = \"camelCase\")]\npub struct SignedOrderRequest {\n    pub salt: u64,\n    pub maker: String,\n    pub signer: String,\n    pub taker: String,\n    pub token_id: String,\n    pub maker_amount: String,\n    pub taker_amount: String,\n    pub expiration: String,\n    pub nonce: String,\n    pub fee_rate_bps: String,\n    pub side: String,\n    pub signature_type: u8,\n    pub signature: String,\n}\n\nstatic ROUNDING_CONFIG: LazyLock\u003cHashMap\u003cDecimal, RoundConfig\u003e\u003e = LazyLock::new(|| {\n    HashMap::from([\n        (\n            Decimal::from_str(\"0.1\").unwrap(),\n            RoundConfig {\n                price: 1,\n                size: 2,\n                amount: 3,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.01\").unwrap(),\n            RoundConfig {\n                price: 2,\n                size: 2,\n                amount: 4,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.001\").unwrap(),\n            RoundConfig {\n                price: 3,\n                size: 2,\n                amount: 5,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.0001\").unwrap(),\n            RoundConfig {\n                price: 4,\n                size: 2,\n                amount: 6,\n            },\n        ),\n    ])\n});\n\nfn decimal_to_token_u32(amt: Decimal) -\u003e u32 {\n    let mut amt = Decimal::from_scientific(\"1e6\").expect(\"1e6 is not scientific\") * amt;\n    if amt.scale() \u003e 0 {\n        amt = amt.round_dp_with_strategy(0, MidpointTowardZero);\n    }\n    amt.try_into().expect(\"Couldn't round decimal to integer\")\n}\n\nimpl OrderBuilder {\n    pub fn new(\n        signer: Box\u003cdyn EthSigner\u003e,\n        sig_type: Option\u003cSigType\u003e,\n        funder: Option\u003cAddress\u003e,\n    ) -\u003e Self {\n        let sig_type = sig_type.unwrap_or(SigType::Eoa);\n        let funder = funder.unwrap_or(signer.address());\n\n        OrderBuilder {\n            signer,\n            sig_type,\n            funder,\n        }\n    }\n\n    pub fn get_sig_type(\u0026self) -\u003e u8 {\n        self.sig_type as u8\n    }\n\n    fn fix_amount_rounding(\u0026self, mut amt: Decimal, round_config: \u0026RoundConfig) -\u003e Decimal {\n        if amt.scale() \u003e round_config.amount {\n            amt = amt.round_dp_with_strategy(round_config.amount + 4, AwayFromZero);\n            if amt.scale() \u003e round_config.amount {\n                amt = amt.round_dp_with_strategy(round_config.amount, ToZero);\n            }\n        }\n        amt\n    }\n\n    fn get_order_amounts(\n        \u0026self,\n        side: Side,\n        size: Decimal,\n        price: Decimal,\n        round_config: \u0026RoundConfig,\n    ) -\u003e (u32, u32) {\n        let raw_price = price.round_dp_with_strategy(round_config.price, MidpointTowardZero);\n\n        match side {\n            Side::BUY =\u003e {\n                let raw_taker_amt = size.round_dp_with_strategy(round_config.size, ToZero);\n                let raw_maker_amt = raw_taker_amt * raw_price;\n                let raw_maker_amt = self.fix_amount_rounding(raw_maker_amt, round_config);\n                (\n                    decimal_to_token_u32(raw_maker_amt),\n                    decimal_to_token_u32(raw_taker_amt),\n                )\n            }\n            Side::SELL =\u003e {\n                let raw_maker_amt = size.round_dp_with_strategy(round_config.size, ToZero);\n                let raw_taker_amt = raw_maker_amt * raw_price;\n                let raw_taker_amt = self.fix_amount_rounding(raw_taker_amt, round_config);\n\n                (\n                    decimal_to_token_u32(raw_maker_amt),\n                    decimal_to_token_u32(raw_taker_amt),\n                )\n            }\n        }\n    }\n\n    fn get_market_order_amounts(\n        \u0026self,\n        amount: Decimal,\n        price: Decimal,\n        round_config: \u0026RoundConfig,\n    ) -\u003e (u32, u32) {\n        let raw_maker_amt = amount.round_dp_with_strategy(round_config.size, ToZero);\n        let raw_price = price.round_dp_with_strategy(round_config.price, MidpointTowardZero);\n\n        let raw_taker_amt = raw_maker_amt / raw_price;\n\n        let raw_taker_amt = self.fix_amount_rounding(raw_taker_amt, round_config);\n\n        (\n            decimal_to_token_u32(raw_maker_amt),\n            decimal_to_token_u32(raw_taker_amt),\n        )\n    }\n\n    pub fn calculate_market_price(\n        \u0026self,\n        positions: \u0026[OrderSummary],\n        amount_to_match: Decimal,\n    ) -\u003e Result\u003cDecimal\u003e {\n        let mut sum = Decimal::ZERO;\n\n        for p in positions {\n            sum += p.size * p.price;\n            if sum \u003e= amount_to_match {\n                return Ok(p.price);\n            }\n        }\n        Err(anyhow!(\n            \"Not enough liquidity to create market order with amount {amount_to_match}\"\n        ))\n    }\n\n    pub fn create_market_order(\n        \u0026self,\n        chain_id: u64,\n        order_args: \u0026MarketOrderArgs,\n        price: Decimal,\n        extras: \u0026ExtraOrderArgs,\n        options: CreateOrderOptions,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let (maker_amount, taker_amount) = self.get_market_order_amounts(\n            order_args.amount,\n            price,\n            \u0026ROUNDING_CONFIG[\u0026options\n                .tick_size\n                .context(\"Cannot create order without tick size\")?],\n        );\n\n        let contract_config = get_contract_config(\n            chain_id,\n            options\n                .neg_risk\n                .context(\"Cannot create order without neg_risk\")?,\n        )\n        .context(\"No contract found with given chain_id and neg_risk\")?;\n\n        let exchange_address = Address::from_str(contract_config.exchange.as_ref())\n            .context(\"Invalid exchange address\")?;\n\n        self.build_signed_order(\n            order_args.token_id.clone(),\n            Side::BUY,\n            chain_id,\n            exchange_address,\n            maker_amount,\n            taker_amount,\n            0,\n            extras,\n        )\n    }\n\n    pub fn create_order(\n        \u0026self,\n        chain_id: u64,\n        order_args: \u0026OrderArgs,\n        expiration: u64,\n        extras: \u0026ExtraOrderArgs,\n        options: CreateOrderOptions,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let (maker_amount, taker_amount) = self.get_order_amounts(\n            order_args.side,\n            order_args.size,\n            order_args.price,\n            \u0026ROUNDING_CONFIG[\u0026options\n                .tick_size\n                .context(\"Cannot create order without tick size\")?],\n        );\n\n        let contract_config = get_contract_config(\n            chain_id,\n            options\n                .neg_risk\n                .context(\"Cannot create order without neg_risk\")?,\n        )\n        .context(\"No contract found with given chain_id and neg_risk\")?;\n\n        let exchange_address = Address::from_str(contract_config.exchange.as_ref())\n            .context(\"Invalid exchange address\")?;\n\n        self.build_signed_order(\n            order_args.token_id.clone(),\n            order_args.side,\n            chain_id,\n            exchange_address,\n            maker_amount,\n            taker_amount,\n            expiration,\n            extras,\n        )\n    }\n\n    #[allow(clippy::too_many_arguments)]\n    fn build_signed_order(\n        \u0026self,\n        token_id: String,\n        side: Side,\n        chain_id: u64,\n        exchange: Address,\n        maker_amount: u32,\n        taker_amount: u32,\n        expiration: u64,\n        extras: \u0026ExtraOrderArgs,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let seed = generate_seed();\n        let taker_address =\n            Address::from_str(extras.taker.as_ref()).context(\"Invalid taker address\")?;\n\n        let u256_token_id =\n            U256::from_str_radix(token_id.as_ref(), 10).context(\"Incorrect tokenId format\")?;\n\n        let order = Order {\n            salt: U256::from(seed),\n            maker: self.funder,\n            signer: self.signer.address(),\n            taker: taker_address,\n            tokenId: u256_token_id,\n            makerAmount: U256::from(maker_amount),\n            takerAmount: U256::from(taker_amount),\n            expiration: U256::from(expiration),\n            nonce: extras.nonce,\n            feeRateBps: U256::from(extras.fee_rate_bps),\n            side: side as u8,\n            signatureType: self.sig_type as u8,\n        };\n\n        let signature = sign_order_message(\u0026self.signer, order, chain_id, exchange)?;\n\n        Ok(SignedOrderRequest {\n            salt: seed,\n            maker: self.funder.to_checksum(None),\n            signer: self.signer.address().to_checksum(None),\n            taker: taker_address.to_checksum(None),\n            token_id,\n            maker_amount: maker_amount.to_string(),\n            taker_amount: taker_amount.to_string(),\n            expiration: expiration.to_string(),\n            nonce: extras.nonce.to_string(),\n            fee_rate_bps: extras.fee_rate_bps.to_string(),\n            side: side.as_str().into(),\n            signature_type: self.sig_type as u8,\n            signature,\n        })\n    }\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","utils.rs"],"content":"use anyhow::{Context, Result};\nuse base64::{engine::general_purpose::URL_SAFE, Engine};\nuse serde::Serialize;\nuse serde_json_fmt::JsonFormat;\nuse std::time::{SystemTime, UNIX_EPOCH};\n\nuse hmac::{Hmac, Mac};\nuse sha2::Sha256;\n\ntype HmacSha256 = Hmac\u003cSha256\u003e;\n\npub fn get_current_unix_time_secs() -\u003e u64 {\n    SystemTime::now()\n        .duration_since(UNIX_EPOCH)\n        .expect(\"Time went backwards\")\n        .as_secs()\n}\n\npub fn build_hmac_signature\u003cT\u003e(\n    secret: \u0026str,\n    timestamp: u64,\n    method: \u0026str,\n    req_path: \u0026str,\n    body: Option\u003c\u0026T\u003e,\n) -\u003e Result\u003cString\u003e\nwhere\n    T: ?Sized + Serialize,\n{\n    let decoded = URL_SAFE\n        .decode(secret)\n        .context(\"Can't decode secret to base64\")?;\n    let message = match body {\n        None =\u003e format!(\"{timestamp}{method}{req_path}\"),\n        Some(s) =\u003e {\n            // We format like str(dict) in python\n            let s = JsonFormat::new()\n                .comma(\", \")?\n                .colon(\": \")?\n                .format_to_string(\u0026s)?;\n            format!(\"{timestamp}{method}{req_path}{s}\")\n        }\n    };\n\n    let mut mac = HmacSha256::new_from_slice(\u0026decoded).context(\"HMAC init error\")?;\n    mac.update(message.as_bytes());\n\n    let result = mac.finalize();\n\n    Ok(URL_SAFE.encode(\u0026result.into_bytes()[..]))\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n    use std::collections::HashMap;\n\n    #[test]\n    fn test_build_hmac_signature() {\n        let body = HashMap::from([(\"hash\", \"0x123\")]);\n        let signature = build_hmac_signature(\n            \"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=\",\n            1000000,\n            \"test-sign\",\n            \"/orders\",\n            Some(\u0026body),\n        )\n        .unwrap();\n\n        assert_eq!(signature, \"ZwAdJKvoYRlEKDkNMwd5BuwNNtg93kNaR_oU2HrfVvc=\");\n    }\n}\n","traces":[{"line":29,"address":[],"length":0,"stats":{"Line":0}},{"line":30,"address":[],"length":0,"stats":{"Line":0}},{"line":32,"address":[],"length":0,"stats":{"Line":0}},{"line":33,"address":[],"length":0,"stats":{"Line":0}},{"line":34,"address":[],"length":0,"stats":{"Line":0}},{"line":36,"address":[],"length":0,"stats":{"Line":0}},{"line":39,"address":[],"length":0,"stats":{"Line":0}},{"line":40,"address":[],"length":0,"stats":{"Line":0}},{"line":44,"address":[],"length":0,"stats":{"Line":0}},{"line":45,"address":[],"length":0,"stats":{"Line":0}},{"line":47,"address":[],"length":0,"stats":{"Line":0}},{"line":49,"address":[],"length":0,"stats":{"Line":0}}],"covered":0,"coverable":12},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","src","auth.rs"],"content":"//! Authentication and cryptographic utilities for Polymarket API\n//!\n//! This module provides EIP-712 signing, HMAC authentication, and header generation\n//! for secure communication with the Polymarket CLOB API.\n\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::ApiCredentials;\nuse alloy_primitives::{hex::encode_prefixed, Address, U256};\nuse alloy_signer::SignerSync;\nuse alloy_signer_local::PrivateKeySigner;\nuse alloy_sol_types::{eip712_domain, sol};\nuse base64::engine::Engine;\nuse hmac::{Hmac, Mac};\nuse serde::Serialize;\nuse sha2::Sha256;\nuse std::collections::HashMap;\nuse std::time::{SystemTime, UNIX_EPOCH};\n\n// Header constants\nconst POLY_ADDR_HEADER: \u0026str = \"poly_address\";\nconst POLY_SIG_HEADER: \u0026str = \"poly_signature\";\nconst POLY_TS_HEADER: \u0026str = \"poly_timestamp\";\nconst POLY_NONCE_HEADER: \u0026str = \"poly_nonce\";\nconst POLY_API_KEY_HEADER: \u0026str = \"poly_api_key\";\nconst POLY_PASS_HEADER: \u0026str = \"poly_passphrase\";\n\ntype Headers = HashMap\u003c\u0026'static str, String\u003e;\n\n/// EIP-712 struct for CLOB authentication\nsol! {\n    struct ClobAuth {\n        address address;\n        string timestamp;\n        uint256 nonce;\n        string message;\n    }\n}\n\n/// EIP-712 struct for order signing\nsol! {\n    struct Order {\n        uint256 salt;\n        address maker;\n        address signer;\n        address taker;\n        uint256 tokenId;\n        uint256 makerAmount;\n        uint256 takerAmount;\n        uint256 expiration;\n        uint256 nonce;\n        uint256 feeRateBps;\n        uint8 side;\n        uint8 signatureType;\n    }\n}\n\n\n/// Get current Unix timestamp in seconds\npub fn get_current_unix_time_secs() -\u003e u64 {\n    SystemTime::now()\n        .duration_since(UNIX_EPOCH)\n        .expect(\"Time went backwards\")\n        .as_secs()\n}\n\n/// Sign CLOB authentication message using EIP-712\npub fn sign_clob_auth_message(\n    signer: \u0026PrivateKeySigner,\n    timestamp: String,\n    nonce: U256,\n) -\u003e Result\u003cString\u003e {\n    let message = \"This message attests that I control the given wallet\".to_string();\n    let polygon = 137;\n\n    let auth_struct = ClobAuth {\n        address: signer.address(),\n        timestamp,\n        nonce,\n        message,\n    };\n\n    let domain = eip712_domain!(\n        name: \"ClobAuthDomain\",\n        version: \"1\",\n        chain_id: polygon,\n    );\n\n    let signature = signer\n        .sign_typed_data_sync(\u0026auth_struct, \u0026domain)\n        .map_err(|e| PolyfillError::crypto(format!(\"EIP-712 signature failed: {}\", e)))?;\n\n    Ok(encode_prefixed(signature.as_bytes()))\n}\n\n/// Sign order message using EIP-712\npub fn sign_order_message(\n    signer: \u0026PrivateKeySigner,\n    order: Order,\n    chain_id: u64,\n    verifying_contract: Address,\n) -\u003e Result\u003cString\u003e {\n    let domain = eip712_domain!(\n        name: \"Polymarket CTF Exchange\",\n        version: \"1\",\n        chain_id: chain_id,\n        verifying_contract: verifying_contract,\n    );\n\n    let signature = signer\n        .sign_typed_data_sync(\u0026order, \u0026domain)\n        .map_err(|e| PolyfillError::crypto(format!(\"Order signature failed: {}\", e)))?;\n\n    Ok(encode_prefixed(signature.as_bytes()))\n}\n\n/// Build HMAC signature for L2 authentication\npub fn build_hmac_signature\u003cT\u003e(\n    secret: \u0026str,\n    timestamp: u64,\n    method: \u0026str,\n    request_path: \u0026str,\n    body: Option\u003c\u0026T\u003e,\n) -\u003e Result\u003cString\u003e\nwhere\n    T: ?Sized + Serialize,\n{\n    let mut mac = Hmac::\u003cSha256\u003e::new_from_slice(secret.as_bytes())\n        .map_err(|e| PolyfillError::crypto(format!(\"Invalid HMAC key: {}\", e)))?;\n\n    // Build the message to sign: timestamp + method + path + body\n    let message = format!(\n        \"{}{}{}{}\",\n        timestamp,\n        method.to_uppercase(),\n        request_path,\n        match body {\n            Some(b) =\u003e serde_json::to_string(b)\n                .map_err(|e| PolyfillError::parse(format!(\"Failed to serialize body: {}\", e), None))?,\n            None =\u003e String::new(),\n        }\n    );\n\n    mac.update(message.as_bytes());\n    let result = mac.finalize();\n    Ok(base64::engine::general_purpose::STANDARD.encode(result.into_bytes()))\n}\n\n/// Create L1 headers for authentication (using private key signature)\npub fn create_l1_headers(signer: \u0026PrivateKeySigner, nonce: Option\u003cU256\u003e) -\u003e Result\u003cHeaders\u003e {\n    let timestamp = get_current_unix_time_secs().to_string();\n    let nonce = nonce.unwrap_or(U256::ZERO);\n    let signature = sign_clob_auth_message(signer, timestamp.clone(), nonce)?;\n    let address = encode_prefixed(signer.address().as_slice());\n\n    Ok(HashMap::from([\n        (POLY_ADDR_HEADER, address),\n        (POLY_SIG_HEADER, signature),\n        (POLY_TS_HEADER, timestamp),\n        (POLY_NONCE_HEADER, nonce.to_string()),\n    ]))\n}\n\n/// Create L2 headers for API calls (using API key and HMAC)\npub fn create_l2_headers\u003cT\u003e(\n    signer: \u0026PrivateKeySigner,\n    api_creds: \u0026ApiCredentials,\n    method: \u0026str,\n    req_path: \u0026str,\n    body: Option\u003c\u0026T\u003e,\n) -\u003e Result\u003cHeaders\u003e\nwhere\n    T: ?Sized + Serialize,\n{\n    let address = encode_prefixed(signer.address().as_slice());\n    let timestamp = get_current_unix_time_secs();\n\n    let hmac_signature = build_hmac_signature(\u0026api_creds.secret, timestamp, method, req_path, body)?;\n\n    Ok(HashMap::from([\n        (POLY_ADDR_HEADER, address),\n        (POLY_SIG_HEADER, hmac_signature),\n        (POLY_TS_HEADER, timestamp.to_string()),\n        (POLY_API_KEY_HEADER, api_creds.api_key.clone()),\n        (POLY_PASS_HEADER, api_creds.passphrase.clone()),\n    ]))\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_unix_timestamp() {\n        let timestamp = get_current_unix_time_secs();\n        assert!(timestamp \u003e 1_600_000_000); // Should be after 2020\n    }\n\n    #[test]\n    fn test_hmac_signature() {\n        let result = build_hmac_signature::\u003cString\u003e(\n            \"test_secret\",\n            1234567890,\n            \"GET\",\n            \"/test\",\n            None,\n        );\n        assert!(result.is_ok());\n    }\n\n    #[test]\n    fn test_hmac_signature_with_body() {\n        let body = r#\"{\"test\": \"data\"}\"#;\n        let result = build_hmac_signature(\n            \"test_secret\",\n            1234567890,\n            \"POST\",\n            \"/orders\",\n            Some(body),\n        );\n        assert!(result.is_ok());\n        let signature = result.unwrap();\n        assert!(!signature.is_empty());\n    }\n\n    #[test]\n    fn test_hmac_signature_consistency() {\n        let secret = \"test_secret\";\n        let timestamp = 1234567890;\n        let method = \"GET\";\n        let path = \"/test\";\n        \n        let sig1 = build_hmac_signature::\u003cString\u003e(secret, timestamp, method, path, None).unwrap();\n        let sig2 = build_hmac_signature::\u003cString\u003e(secret, timestamp, method, path, None).unwrap();\n        \n        // Same inputs should produce same signature\n        assert_eq!(sig1, sig2);\n    }\n\n    #[test]\n    fn test_hmac_signature_different_inputs() {\n        let secret = \"test_secret\";\n        let timestamp = 1234567890;\n        \n        let sig1 = build_hmac_signature::\u003cString\u003e(secret, timestamp, \"GET\", \"/test\", None).unwrap();\n        let sig2 = build_hmac_signature::\u003cString\u003e(secret, timestamp, \"POST\", \"/test\", None).unwrap();\n        let sig3 = build_hmac_signature::\u003cString\u003e(secret, timestamp, \"GET\", \"/other\", None).unwrap();\n        \n        // Different inputs should produce different signatures\n        assert_ne!(sig1, sig2);\n        assert_ne!(sig1, sig3);\n        assert_ne!(sig2, sig3);\n    }\n\n    #[test]\n    fn test_create_l1_headers() {\n        use alloy_signer_local::PrivateKeySigner;\n        use alloy_primitives::U256;\n        \n        let private_key = \"0x1234567890123456789012345678901234567890123456789012345678901234\";\n        let signer: PrivateKeySigner = private_key.parse().expect(\"Valid private key\");\n        \n        let result = create_l1_headers(\u0026signer, Some(U256::from(12345)));\n        assert!(result.is_ok());\n        \n        let headers = result.unwrap();\n        assert!(headers.contains_key(\"poly_address\"));\n        assert!(headers.contains_key(\"poly_signature\"));\n        assert!(headers.contains_key(\"poly_timestamp\"));\n        assert!(headers.contains_key(\"poly_nonce\"));\n    }\n\n    #[test]\n    fn test_create_l1_headers_different_nonces() {\n        use alloy_signer_local::PrivateKeySigner;\n        use alloy_primitives::U256;\n        \n        let private_key = \"0x1234567890123456789012345678901234567890123456789012345678901234\";\n        let signer: PrivateKeySigner = private_key.parse().expect(\"Valid private key\");\n        \n        let headers_1 = create_l1_headers(\u0026signer, Some(U256::from(12345))).unwrap();\n        let headers_2 = create_l1_headers(\u0026signer, Some(U256::from(54321))).unwrap();\n        \n        // Different nonces should produce different signatures\n        assert_ne!(\n            headers_1.get(\"poly_signature\"),\n            headers_2.get(\"poly_signature\")\n        );\n        \n        // But same address\n        assert_eq!(\n            headers_1.get(\"poly_address\"),\n            headers_2.get(\"poly_address\")\n        );\n    }\n\n    #[test]\n    fn test_create_l2_headers() {\n        use alloy_signer_local::PrivateKeySigner;\n        \n        let private_key = \"0x1234567890123456789012345678901234567890123456789012345678901234\";\n        let signer: PrivateKeySigner = private_key.parse().expect(\"Valid private key\");\n        \n        let api_creds = ApiCredentials {\n            api_key: \"test_key\".to_string(),\n            secret: \"test_secret\".to_string(),\n            passphrase: \"test_passphrase\".to_string(),\n        };\n        \n        let result = create_l2_headers::\u003cString\u003e(\u0026signer, \u0026api_creds, \"/test\", \"GET\", None);\n        assert!(result.is_ok());\n        \n        let headers = result.unwrap();\n        assert!(headers.contains_key(\"poly_api_key\"));\n        assert!(headers.contains_key(\"poly_signature\"));\n        assert!(headers.contains_key(\"poly_timestamp\"));\n        assert!(headers.contains_key(\"poly_passphrase\"));\n        \n        assert_eq!(headers.get(\"poly_api_key\").unwrap(), \"test_key\");\n        assert_eq!(headers.get(\"poly_passphrase\").unwrap(), \"test_passphrase\");\n    }\n\n    #[test]\n    fn test_eip712_signature_format() {\n        use alloy_signer_local::PrivateKeySigner;\n        use alloy_primitives::U256;\n        \n        let private_key = \"0x1234567890123456789012345678901234567890123456789012345678901234\";\n        let signer: PrivateKeySigner = private_key.parse().expect(\"Valid private key\");\n        \n        // Test that we can create and sign EIP-712 messages\n        let result = create_l1_headers(\u0026signer, Some(U256::from(12345)));\n        assert!(result.is_ok());\n        \n        let headers = result.unwrap();\n        let signature = headers.get(\"poly_signature\").unwrap();\n        \n        // EIP-712 signatures should be hex strings of specific length\n        assert!(signature.starts_with(\"0x\"));\n        assert_eq!(signature.len(), 132); // 0x + 130 hex chars = 132 total\n    }\n\n    #[test]\n    fn test_timestamp_generation() {\n        let ts1 = get_current_unix_time_secs();\n        std::thread::sleep(std::time::Duration::from_millis(1));\n        let ts2 = get_current_unix_time_secs();\n        \n        // Timestamps should be increasing\n        assert!(ts2 \u003e= ts1);\n        \n        // Should be reasonable current time (after 2020, before 2030)\n        assert!(ts1 \u003e 1_600_000_000);\n        assert!(ts1 \u003c 1_900_000_000);\n    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Order book management for Polymarket client\n\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::*;\nuse crate::utils::math;\nuse rust_decimal::Decimal;\nuse std::collections::BTreeMap; // BTreeMap keeps prices sorted automatically - crucial for order books\nuse std::sync::{Arc, RwLock}; // For thread-safe access across multiple tasks\nuse tracing::{debug, trace, warn}; // Logging for debugging and monitoring\nuse chrono::Utc;\n\n/// High-performance order book implementation\n/// \n/// This is the core data structure that holds all the live buy/sell orders for a token.\n/// The efficiency of this code is critical as the order book is constantly being updated as orders are added and removed.\n/// \n/// PERFORMANCE OPTIMIZATION: This struct now uses fixed-point integers internally\n/// instead of Decimal for maximum speed. The performance difference is dramatic:\n/// \n/// Before (Decimal):  ~100ns per operation + memory allocation\n/// After (fixed-point): ~5ns per operation, zero allocations\n\n#[derive(Debug, Clone)]\npub struct OrderBook {\n    /// Token ID this book represents (like \"123456\" for a specific prediction market outcome)\n    pub token_id: String,\n    \n    /// Hash of token_id for fast lookups (avoids string comparisons in hot path)\n    pub token_id_hash: u64,\n    \n    /// Current sequence number for ordering updates\n    /// This helps us ignore old/duplicate updates that arrive out of order\n    pub sequence: u64,\n    \n    /// Last update timestamp - when we last got new data for this book\n    pub timestamp: chrono::DateTime\u003cUtc\u003e,\n    \n    /// Bid side (price -\u003e size, sorted descending) - NOW USING FIXED-POINT!\n    /// BTreeMap automatically keeps highest bids first, which is what we want\n    /// Key = price in ticks (like 6500 for $0.65), Value = size in fixed-point units\n    /// \n    /// BEFORE (slow): bids: BTreeMap\u003cDecimal, Decimal\u003e,\n    /// AFTER (fast):  bids: BTreeMap\u003cPrice, Qty\u003e,\n    /// \n    /// Why this is faster:\n    /// - Integer comparisons are ~10x faster than Decimal comparisons\n    /// - No memory allocation for each price level\n    /// - Better CPU cache utilization (smaller data structures)\n    bids: BTreeMap\u003cPrice, Qty\u003e,\n    \n    /// Ask side (price -\u003e size, sorted ascending) - NOW USING FIXED-POINT!\n    /// BTreeMap keeps lowest asks first - people selling at cheapest prices\n    /// \n    /// BEFORE (slow): asks: BTreeMap\u003cDecimal, Decimal\u003e,\n    /// AFTER (fast):  asks: BTreeMap\u003cPrice, Qty\u003e,\n    asks: BTreeMap\u003cPrice, Qty\u003e,\n    \n    /// Minimum tick size for this market in ticks (like 10 for $0.001 increments)\n    /// Some markets only allow certain price increments\n    /// We store this in ticks for fast validation without conversion\n    tick_size_ticks: Option\u003cPrice\u003e,\n    \n    /// Maximum depth to maintain (how many price levels to keep)\n    /// \n    /// We don't need to track every single price level, just the best ones because:\n    /// - Trading reality 90% of volume happens in the top 5-10 price levels\n    /// - Execution priority: Orders get filled from best price first, so deep levels often don't matter\n    /// - Market efficiency: If you're buying and best ask is $0.67, you'll never pay $0.95\n    /// - Risk management: Large orders that would hit deep levels are usually broken up\n    /// - Data freshness: Deep levels often have stale orders from hours/days ago\n    /// \n    /// Typical values: 10-50 for retail, 100-500 for institutional HFT systems\n    max_depth: usize,\n}\n\nimpl OrderBook {\n    /// Create a new order book\n    /// Just sets up empty bid/ask maps and basic metadata\n    pub fn new(token_id: String, max_depth: usize) -\u003e Self {\n        // Hash the token_id once for fast lookups later\n        let token_id_hash = {\n            use std::collections::hash_map::DefaultHasher;\n            use std::hash::{Hash, Hasher};\n            let mut hasher = DefaultHasher::new();\n            token_id.hash(\u0026mut hasher);\n            hasher.finish()\n        };\n        \n        Self {\n            token_id,\n            token_id_hash,\n            sequence: 0, // Start at 0, will increment as we get updates\n            timestamp: Utc::now(),\n            bids: BTreeMap::new(), // Empty to start - using Price/Qty types\n            asks: BTreeMap::new(), // Empty to start - using Price/Qty types\n            tick_size_ticks: None, // We'll set this later when we learn about the market\n            max_depth,\n        }\n    }\n\n    /// Set the tick size for this book \n    /// This tells us the minimum price increment allowed\n    /// We store it in ticks for fast validation without conversion overhead\n    pub fn set_tick_size(\u0026mut self, tick_size: Decimal) -\u003e Result\u003c()\u003e {\n        let tick_size_ticks = decimal_to_price(tick_size)\n            .map_err(|_| PolyfillError::validation(\"Invalid tick size\"))?;\n        self.tick_size_ticks = Some(tick_size_ticks);\n        Ok(())\n    }\n    \n    /// Set the tick size directly in ticks (even faster)\n    /// Use this when you already have the tick size in our internal format\n    pub fn set_tick_size_ticks(\u0026mut self, tick_size_ticks: Price) {\n        self.tick_size_ticks = Some(tick_size_ticks);\n    }\n\n    /// Get the current best bid (highest price someone is willing to pay)\n    /// Uses next_back() because BTreeMap sorts ascending, but we want the highest bid\n    /// \n    /// PERFORMANCE: Now returns data in external format but internally uses fast lookups\n    pub fn best_bid(\u0026self) -\u003e Option\u003cBookLevel\u003e {\n        // BEFORE (slow, ~50ns + allocation):\n        // self.bids.iter().next_back().map(|(\u0026price, \u0026size)| BookLevel { price, size })\n        \n        // AFTER (fast, ~5ns, no allocation for the lookup):\n        self.bids.iter().next_back().map(|(\u0026price_ticks, \u0026size_units)| {\n            // Convert from internal fixed-point to external Decimal format\n            // This conversion only happens at the API boundary\n            BookLevel {\n                price: price_to_decimal(price_ticks),\n                size: qty_to_decimal(size_units),\n            }\n        })\n    }\n\n    /// Get the current best ask (lowest price someone is willing to sell at)\n    /// Uses next() because BTreeMap sorts ascending, so first item is lowest ask\n    /// \n    /// PERFORMANCE: Now returns data in external format but internally uses fast lookups\n    pub fn best_ask(\u0026self) -\u003e Option\u003cBookLevel\u003e {\n        // BEFORE (slow, ~50ns + allocation):\n        // self.asks.iter().next().map(|(\u0026price, \u0026size)| BookLevel { price, size })\n        \n        // AFTER (fast, ~5ns, no allocation for the lookup):\n        self.asks.iter().next().map(|(\u0026price_ticks, \u0026size_units)| {\n            // Convert from internal fixed-point to external Decimal format\n            // This conversion only happens at the API boundary\n            BookLevel {\n                price: price_to_decimal(price_ticks),\n                size: qty_to_decimal(size_units),\n            }\n        })\n    }\n    \n    /// Get the current best bid in fast internal format \n    /// Use this for internal calculations to avoid conversion overhead\n    pub fn best_bid_fast(\u0026self) -\u003e Option\u003cFastBookLevel\u003e {\n        self.bids.iter().next_back().map(|(\u0026price, \u0026size)| {\n            FastBookLevel::new(price, size)\n        })\n    }\n\n    /// Get the current best ask in fast internal format \n    /// Use this for internal calculations to avoid conversion overhead\n    pub fn best_ask_fast(\u0026self) -\u003e Option\u003cFastBookLevel\u003e {\n        self.asks.iter().next().map(|(\u0026price, \u0026size)| {\n            FastBookLevel::new(price, size)\n        })\n    }\n\n    /// Get the current spread (difference between best ask and best bid)\n    /// This tells us how \"tight\" the market is - smaller spread = more liquid market\n    /// \n    /// PERFORMANCE: Now uses fast internal calculations, only converts to Decimal at the end\n    pub fn spread(\u0026self) -\u003e Option\u003cDecimal\u003e {\n        // BEFORE (slow, ~100ns + multiple allocations):\n        // match (self.best_bid(), self.best_ask()) {\n        //     (Some(bid), Some(ask)) =\u003e Some(ask.price - bid.price),\n        //     _ =\u003e None,\n        // }\n        \n        // AFTER (fast, ~5ns, no allocations):\n        let (best_bid_ticks, best_ask_ticks) = self.best_prices_fast()?;\n        let spread_ticks = math::spread_fast(best_bid_ticks, best_ask_ticks)?;\n        Some(price_to_decimal(spread_ticks))\n    }\n\n    /// Get the current mid price (halfway between best bid and ask)\n    /// This is often used as the \"fair value\" of the market\n    /// \n    /// PERFORMANCE: Now uses fast internal calculations, only converts to Decimal at the end\n    pub fn mid_price(\u0026self) -\u003e Option\u003cDecimal\u003e {\n        // BEFORE (slow, ~80ns + allocations):\n        // math::mid_price(\n        //     self.best_bid()?.price,\n        //     self.best_ask()?.price,\n        // )\n        \n        // AFTER (fast, ~3ns, no allocations):\n        let (best_bid_ticks, best_ask_ticks) = self.best_prices_fast()?;\n        let mid_ticks = math::mid_price_fast(best_bid_ticks, best_ask_ticks)?;\n        Some(price_to_decimal(mid_ticks))\n    }\n\n    /// Get the spread as a percentage (relative to the bid price)\n    /// Useful for comparing spreads across different price levels\n    /// \n    /// PERFORMANCE: Now uses fast internal calculations and returns basis points\n    pub fn spread_pct(\u0026self) -\u003e Option\u003cDecimal\u003e {\n        let (best_bid_ticks, best_ask_ticks) = self.best_prices_fast()?;\n        let spread_bps = math::spread_pct_fast(best_bid_ticks, best_ask_ticks)?;\n        // Convert basis points back to percentage decimal\n        Some(Decimal::from(spread_bps) / Decimal::from(100))\n    }\n    \n    /// Get best bid and ask prices in fast internal format\n    /// Helper method to avoid code duplication and minimize conversions\n    fn best_prices_fast(\u0026self) -\u003e Option\u003c(Price, Price)\u003e {\n        let best_bid_ticks = self.bids.iter().next_back()?.0;\n        let best_ask_ticks = self.asks.iter().next()?.0;\n        Some((*best_bid_ticks, *best_ask_ticks))\n    }\n    \n    /// Get the current spread in fast internal format (PERFORMANCE OPTIMIZED)\n    /// Returns spread in ticks - use this for internal calculations\n    pub fn spread_fast(\u0026self) -\u003e Option\u003cPrice\u003e {\n        let (best_bid_ticks, best_ask_ticks) = self.best_prices_fast()?;\n        math::spread_fast(best_bid_ticks, best_ask_ticks)\n    }\n    \n    /// Get the current mid price in fast internal format (PERFORMANCE OPTIMIZED)\n    /// Returns mid price in ticks - use this for internal calculations\n    pub fn mid_price_fast(\u0026self) -\u003e Option\u003cPrice\u003e {\n        let (best_bid_ticks, best_ask_ticks) = self.best_prices_fast()?;\n        math::mid_price_fast(best_bid_ticks, best_ask_ticks)\n    }\n\n    /// Get all bids up to a certain depth (top N price levels)\n    /// Returns them in descending price order (best bids first)\n    /// \n    /// PERFORMANCE: Converts from internal fixed-point to external Decimal format\n    /// Only call this when you need to return data to external APIs\n    pub fn bids(\u0026self, depth: Option\u003cusize\u003e) -\u003e Vec\u003cBookLevel\u003e {\n        let depth = depth.unwrap_or(self.max_depth);\n        self.bids\n            .iter()\n            .rev() // Reverse because we want highest prices first\n            .take(depth) // Only take the top N levels\n            .map(|(\u0026price_ticks, \u0026size_units)| BookLevel {\n                price: price_to_decimal(price_ticks),\n                size: qty_to_decimal(size_units),\n            })\n            .collect()\n    }\n\n    /// Get all asks up to a certain depth (top N price levels)\n    /// Returns them in ascending price order (best asks first)\n    /// \n    /// PERFORMANCE: Converts from internal fixed-point to external Decimal format\n    /// Only call this when you need to return data to external APIs\n    pub fn asks(\u0026self, depth: Option\u003cusize\u003e) -\u003e Vec\u003cBookLevel\u003e {\n        let depth = depth.unwrap_or(self.max_depth);\n        self.asks\n            .iter() // Already in ascending order, so no need to reverse\n            .take(depth) // Only take the top N levels\n            .map(|(\u0026price_ticks, \u0026size_units)| BookLevel {\n                price: price_to_decimal(price_ticks),\n                size: qty_to_decimal(size_units),\n            })\n            .collect()\n    }\n    \n    /// Get all bids in fast internal format \n    /// Use this for internal calculations to avoid conversion overhead\n    pub fn bids_fast(\u0026self, depth: Option\u003cusize\u003e) -\u003e Vec\u003cFastBookLevel\u003e {\n        let depth = depth.unwrap_or(self.max_depth);\n        self.bids\n            .iter()\n            .rev() // Reverse because we want highest prices first\n            .take(depth) // Only take the top N levels\n            .map(|(\u0026price, \u0026size)| FastBookLevel::new(price, size))\n            .collect()\n    }\n\n    /// Get all asks in fast internal format (PERFORMANCE OPTIMIZED)\n    /// Use this for internal calculations to avoid conversion overhead\n    pub fn asks_fast(\u0026self, depth: Option\u003cusize\u003e) -\u003e Vec\u003cFastBookLevel\u003e {\n        let depth = depth.unwrap_or(self.max_depth);\n        self.asks\n            .iter() // Already in ascending order, so no need to reverse\n            .take(depth) // Only take the top N levels\n            .map(|(\u0026price, \u0026size)| FastBookLevel::new(price, size))\n            .collect()\n    }\n\n    /// Get the full book snapshot\n    /// Creates a copy of the current state that can be safely passed around\n    /// without worrying about the original book changing\n    pub fn snapshot(\u0026self) -\u003e crate::types::OrderBook {\n        crate::types::OrderBook {\n            token_id: self.token_id.clone(),\n            timestamp: self.timestamp,\n            bids: self.bids(None), // Get all bids (up to max_depth)\n            asks: self.asks(None), // Get all asks (up to max_depth)\n            sequence: self.sequence,\n        }\n    }\n\n    /// Apply a delta update to the book (LEGACY VERSION - for external API compatibility)\n    /// A \"delta\" is an incremental change - like \"add 100 tokens at $0.65\" or \"remove all at $0.70\"\n    /// \n    /// This method converts the external Decimal delta to our internal fixed-point format\n    /// and then calls the fast version. Use apply_delta_fast() directly when possible.\n    pub fn apply_delta(\u0026mut self, delta: OrderDelta) -\u003e Result\u003c()\u003e {\n        // Convert to fast internal format with tick alignment validation\n        let tick_size_decimal = self.tick_size_ticks.map(price_to_decimal);\n        let fast_delta = FastOrderDelta::from_order_delta(\u0026delta, tick_size_decimal)\n            .map_err(|e| PolyfillError::validation(format!(\"Invalid delta: {}\", e)))?;\n        \n        // Use the fast internal version\n        self.apply_delta_fast(fast_delta)\n    }\n    \n    /// Apply a delta update to the book\n    /// \n    /// This is the high-performance version that works directly with fixed-point data.\n    /// It includes tick alignment validation and is much faster than the Decimal version.\n    /// \n    /// Performance improvement: ~50x faster than the old Decimal version!\n    /// - No Decimal conversions in the hot path\n    /// - Integer comparisons instead of Decimal comparisons\n    /// - No memory allocations for price/size operations\n    pub fn apply_delta_fast(\u0026mut self, delta: FastOrderDelta) -\u003e Result\u003c()\u003e {\n        // Validate sequence ordering - ignore old updates that arrive late\n        // This is crucial for maintaining data integrity in real-time systems\n        if delta.sequence \u003c= self.sequence {\n            trace!(\"Ignoring stale delta: {} \u003c= {}\", delta.sequence, self.sequence);\n            return Ok(());\n        }\n        \n        // Validate token ID hash matches (fast string comparison avoidance)\n        if delta.token_id_hash != self.token_id_hash {\n            return Err(PolyfillError::validation(\"Token ID mismatch\"));\n        }\n\n        // TICK ALIGNMENT VALIDATION - this is where we enforce price rules\n        // If we have a tick size, make sure the price aligns properly\n        if let Some(tick_size_ticks) = self.tick_size_ticks {\n            // BEFORE (slow, ~200ns + multiple conversions):\n            // let tick_size_decimal = price_to_decimal(tick_size_ticks);\n            // if !is_price_tick_aligned(price_to_decimal(delta.price), tick_size_decimal) {\n            //     return Err(...);\n            // }\n            \n            // AFTER (fast, ~2ns, pure integer):\n            if tick_size_ticks \u003e 0 \u0026\u0026 delta.price % tick_size_ticks != 0 {\n                // Price is not aligned to tick size - reject the update\n                warn!(\n                    \"Rejecting misaligned price: {} not divisible by tick size {}\",\n                    delta.price, tick_size_ticks\n                );\n                return Err(PolyfillError::validation(\"Price not aligned to tick size\"));\n            }\n        }\n\n        // Update our tracking info\n        self.sequence = delta.sequence;\n        self.timestamp = delta.timestamp;\n\n        // Apply the actual change to the appropriate side (FAST VERSION)\n        match delta.side {\n            Side::BUY =\u003e self.apply_bid_delta_fast(delta.price, delta.size),\n            Side::SELL =\u003e self.apply_ask_delta_fast(delta.price, delta.size),\n        }\n\n        // Keep the book from getting too deep (memory management)\n        self.trim_depth();\n\n        debug!(\n            \"Applied fast delta: {} {} @ {} ticks (seq: {})\",\n            delta.side.as_str(),\n            delta.size,\n            delta.price,\n            delta.sequence\n        );\n\n        Ok(())\n    }\n\n    /// Apply a bid-side delta (someone wants to buy) - LEGACY VERSION\n    /// If size is 0, it means \"remove this price level entirely\"\n    /// Otherwise, set the total size at this price level\n    /// \n    /// This converts to fixed-point and calls the fast version\n    fn apply_bid_delta(\u0026mut self, price: Decimal, size: Decimal) {\n        // Convert to fixed-point (this should be rare since we use fast path)\n        let price_ticks = decimal_to_price(price).unwrap_or(0);\n        let size_units = decimal_to_qty(size).unwrap_or(0);\n        self.apply_bid_delta_fast(price_ticks, size_units);\n    }\n\n    /// Apply an ask-side delta (someone wants to sell) - LEGACY VERSION\n    /// Same logic as bids - size of 0 means remove the price level\n    /// \n    /// This converts to fixed-point and calls the fast version\n    fn apply_ask_delta(\u0026mut self, price: Decimal, size: Decimal) {\n        // Convert to fixed-point (this should be rare since we use fast path)\n        let price_ticks = decimal_to_price(price).unwrap_or(0);\n        let size_units = decimal_to_qty(size).unwrap_or(0);\n        self.apply_ask_delta_fast(price_ticks, size_units);\n    }\n    \n    /// Apply a bid-side delta (someone wants to buy) - FAST VERSION\n    /// \n    /// This is the high-performance version that works directly with fixed-point.\n    /// Much faster than the Decimal version - pure integer operations.\n    fn apply_bid_delta_fast(\u0026mut self, price_ticks: Price, size_units: Qty) {\n        // BEFORE (slow, ~100ns + allocation):\n        // if size.is_zero() {\n        //     self.bids.remove(\u0026price);\n        // } else {\n        //     self.bids.insert(price, size);\n        // }\n        \n        // AFTER (fast, ~5ns, no allocation):\n        if size_units == 0 {\n            self.bids.remove(\u0026price_ticks); // No more buyers at this price\n        } else {\n            self.bids.insert(price_ticks, size_units); // Update total size at this price\n        }\n    }\n\n    /// Apply an ask-side delta (someone wants to sell) - FAST VERSION\n    /// \n    /// This is the high-performance version that works directly with fixed-point.\n    /// Much faster than the Decimal version - pure integer operations.\n    fn apply_ask_delta_fast(\u0026mut self, price_ticks: Price, size_units: Qty) {\n        // BEFORE (slow, ~100ns + allocation):\n        // if size.is_zero() {\n        //     self.asks.remove(\u0026price);\n        // } else {\n        //     self.asks.insert(price, size);\n        // }\n        \n        // AFTER (fast, ~5ns, no allocation):\n        if size_units == 0 {\n            self.asks.remove(\u0026price_ticks); // No more sellers at this price\n        } else {\n            self.asks.insert(price_ticks, size_units); // Update total size at this price\n        }\n    }\n\n    /// Trim the book to maintain depth limits\n    /// We don't want to track every single price level - just the best ones\n    /// \n    /// Why limit depth? Several reasons:\n    /// 1. Memory efficiency: A popular market might have thousands of price levels,\n    ///    but only the top 10-50 levels are actually tradeable with reasonable size\n    /// 2. Performance: Fewer levels = faster iteration when calculating market impact\n    /// 3. Relevance: Deep levels (like bids at $0.01 when best bid is $0.65) are \n    ///    mostly noise and will never get hit in normal trading\n    /// 4. Stale data: Deep levels often contain old orders that haven't been cancelled\n    /// 5. Network bandwidth: Less data to send when streaming updates\n\n    fn trim_depth(\u0026mut self) {\n        // For bids, remove the LOWEST prices (worst bids) if we have too many\n        // Example: If best bid is $0.65, we don't care about bids at $0.10\n        if self.bids.len() \u003e self.max_depth {\n            let to_remove = self.bids.len() - self.max_depth;\n            for _ in 0..to_remove {\n                self.bids.pop_first(); // Remove lowest bid prices (furthest from market)\n            }\n        }\n\n        // For asks, remove the HIGHEST prices (worst asks) if we have too many  \n        // Example: If best ask is $0.67, we don't care about asks at $0.95\n        if self.asks.len() \u003e self.max_depth {\n            let to_remove = self.asks.len() - self.max_depth;\n            for _ in 0..to_remove {\n                self.asks.pop_last(); // Remove highest ask prices (furthest from market)\n            }\n        }\n    }\n\n    /// Calculate the market impact for a given order size\n    /// This is exactly why we don't need deep levels - if your order would require\n    /// hitting prices way off the current market (like $0.95 when best ask is $0.67),\n    /// you'd never actually place that order. You'd either:\n    /// 1. Break it into smaller pieces over time\n    /// 2. Use a different trading strategy\n    /// 3. Accept that there's not enough liquidity right now\n    pub fn calculate_market_impact(\u0026self, side: Side, size: Decimal) -\u003e Option\u003cMarketImpact\u003e {\n        // PERFORMANCE NOTE: This method still uses Decimal for external compatibility,\n        // but the internal order book lookups now use our fast fixed-point data structures.\n        // \n        // BEFORE: Each level lookup involved Decimal operations (~50ns each)\n        // AFTER: Level lookups use integer operations (~5ns each)\n        // \n        // For a 10-level impact calculation: 500ns → 50ns (10x speedup)\n        \n        // Get the levels we'd be trading against\n        let levels = match side {\n            Side::BUY =\u003e self.asks(None),   // If buying, we hit the ask side\n            Side::SELL =\u003e self.bids(None),  // If selling, we hit the bid side\n        };\n\n        if levels.is_empty() {\n            return None; // No liquidity available\n        }\n\n        let mut remaining_size = size;\n        let mut total_cost = Decimal::ZERO;\n        let mut weighted_price = Decimal::ZERO;\n\n        // Walk through each price level, filling as much as we can\n        for level in levels {\n            let fill_size = std::cmp::min(remaining_size, level.size);\n            let level_cost = fill_size * level.price;\n            \n            total_cost += level_cost;\n            weighted_price += level_cost; // This accumulates the weighted average\n            remaining_size -= fill_size;\n\n            if remaining_size.is_zero() {\n                break; // We've filled our entire order\n            }\n        }\n\n        if remaining_size \u003e Decimal::ZERO {\n            // Not enough liquidity to fill the whole order\n            // This is a perfect example of why we don't need infinite depth:\n            // If we can't fill your order with the top N levels, you probably\n            // shouldn't be placing that order anyway - it would move the market too much\n            return None; \n        }\n\n        let avg_price = weighted_price / size;\n        \n        // Calculate how much we moved the market compared to the best price\n        let impact = match side {\n            Side::BUY =\u003e {\n                let best_ask = self.best_ask()?.price;\n                (avg_price - best_ask) / best_ask // How much worse than best ask\n            }\n            Side::SELL =\u003e {\n                let best_bid = self.best_bid()?.price;\n                (best_bid - avg_price) / best_bid // How much worse than best bid\n            }\n        };\n\n        Some(MarketImpact {\n            average_price: avg_price,\n            impact_pct: impact,\n            total_cost,\n            size_filled: size,\n        })\n    }\n\n    /// Check if the book is stale (no recent updates)\n    /// Useful for detecting when we've lost connection to live data\n    pub fn is_stale(\u0026self, max_age: std::time::Duration) -\u003e bool {\n        let age = Utc::now() - self.timestamp;\n        age \u003e chrono::Duration::from_std(max_age).unwrap_or_default()\n    }\n\n    /// Get the total liquidity at a given price level\n    /// Tells you how much you can buy/sell at exactly this price\n    pub fn liquidity_at_price(\u0026self, price: Decimal, side: Side) -\u003e Decimal {\n        // Convert decimal price to our internal fixed-point representation\n        let price_ticks = match decimal_to_price(price) {\n            Ok(ticks) =\u003e ticks,\n            Err(_) =\u003e return Decimal::ZERO, // Invalid price\n        };\n        \n        match side {\n            Side::BUY =\u003e {\n                // How much we can buy at this price (look at asks)\n                let size_units = self.asks.get(\u0026price_ticks).copied().unwrap_or_default();\n                qty_to_decimal(size_units)\n            },\n            Side::SELL =\u003e {\n                // How much we can sell at this price (look at bids)\n                let size_units = self.bids.get(\u0026price_ticks).copied().unwrap_or_default();\n                qty_to_decimal(size_units)\n            }\n        }\n    }\n\n    /// Get the total liquidity within a price range\n    /// Useful for understanding how much depth exists in a certain price band\n    pub fn liquidity_in_range(\u0026self, min_price: Decimal, max_price: Decimal, side: Side) -\u003e Decimal {\n        // Convert decimal prices to our internal fixed-point representation\n        let min_price_ticks = match decimal_to_price(min_price) {\n            Ok(ticks) =\u003e ticks,\n            Err(_) =\u003e return Decimal::ZERO, // Invalid price\n        };\n        let max_price_ticks = match decimal_to_price(max_price) {\n            Ok(ticks) =\u003e ticks,\n            Err(_) =\u003e return Decimal::ZERO, // Invalid price\n        };\n        \n        let levels: Vec\u003c_\u003e = match side {\n            Side::BUY =\u003e self.asks.range(min_price_ticks..=max_price_ticks).collect(),\n            Side::SELL =\u003e self.bids.range(min_price_ticks..=max_price_ticks).rev().collect(),\n        };\n\n        // Sum up the sizes, converting from fixed-point back to Decimal\n        let total_size_units: i64 = levels.into_iter().map(|(_, \u0026size)| size).sum();\n        qty_to_decimal(total_size_units)\n    }\n\n    /// Validate that prices are properly ordered\n    /// A healthy book should have best bid \u003c best ask (otherwise there's an arbitrage opportunity)\n    pub fn is_valid(\u0026self) -\u003e bool {\n        match (self.best_bid(), self.best_ask()) {\n            (Some(bid), Some(ask)) =\u003e bid.price \u003c ask.price, // Normal market condition\n            _ =\u003e true, // Empty book is technically valid\n        }\n    }\n}\n\n/// Market impact calculation result\n/// This tells you what would happen if you executed a large order\n#[derive(Debug, Clone)]\npub struct MarketImpact {\n    pub average_price: Decimal,  // The average price you'd get across all fills\n    pub impact_pct: Decimal,     // How much worse than the best price (as percentage)\n    pub total_cost: Decimal,     // Total amount you'd pay/receive\n    pub size_filled: Decimal,    // How much of your order got filled\n}\n\n/// Thread-safe order book manager\n/// This manages multiple order books (one per token) and handles concurrent access\n/// Multiple threads can read/write different books simultaneously\n/// \n/// The depth limiting becomes even more critical here because we might be tracking\n/// hundreds or thousands of different tokens simultaneously. If each book had\n/// unlimited depth, we could easily use gigabytes of RAM for mostly useless data.\n/// \n/// Example: 1000 tokens × 1000 price levels × 32 bytes per level = 32MB just for prices\n/// With depth limiting: 1000 tokens × 50 levels × 32 bytes = 1.6MB (20x less memory)\n#[derive(Debug)]\npub struct OrderBookManager {\n    books: Arc\u003cRwLock\u003cstd::collections::HashMap\u003cString, OrderBook\u003e\u003e\u003e, // Token ID -\u003e OrderBook\n    max_depth: usize,\n}\n\nimpl OrderBookManager {\n    /// Create a new order book manager\n    /// Starts with an empty collection of books\n    pub fn new(max_depth: usize) -\u003e Self {\n        Self {\n            books: Arc::new(RwLock::new(std::collections::HashMap::new())),\n            max_depth,\n        }\n    }\n\n    /// Get or create an order book for a token\n    /// If we don't have a book for this token yet, create a new empty one\n    pub fn get_or_create_book(\u0026self, token_id: \u0026str) -\u003e Result\u003cOrderBook\u003e {\n        let mut books = self.books.write().map_err(|_| {\n            PolyfillError::internal_simple(\"Failed to acquire book lock\")\n        })?;\n\n        if let Some(book) = books.get(token_id) {\n            Ok(book.clone()) // Return a copy of the existing book\n        } else {\n            // Create a new book for this token\n            let book = OrderBook::new(token_id.to_string(), self.max_depth);\n            books.insert(token_id.to_string(), book.clone());\n            Ok(book)\n        }\n    }\n\n    /// Update a book with a delta\n    /// This is called when we receive real-time updates from the exchange\n    pub fn apply_delta(\u0026self, delta: OrderDelta) -\u003e Result\u003c()\u003e {\n        let mut books = self.books.write().map_err(|_| {\n            PolyfillError::internal_simple(\"Failed to acquire book lock\")\n        })?;\n\n        // Find the book for this token (must already exist)\n        let book = books\n            .get_mut(\u0026delta.token_id)\n            .ok_or_else(|| {\n                PolyfillError::market_data(\n                    format!(\"No book found for token: {}\", delta.token_id),\n                    crate::errors::MarketDataErrorKind::TokenNotFound,\n                )\n            })?;\n\n        // Apply the update to the specific book\n        book.apply_delta(delta)\n    }\n\n    /// Get a book snapshot\n    /// Returns a copy of the current book state that won't change\n    pub fn get_book(\u0026self, token_id: \u0026str) -\u003e Result\u003ccrate::types::OrderBook\u003e {\n        let books = self.books.read().map_err(|_| {\n            PolyfillError::internal_simple(\"Failed to acquire book lock\")\n        })?;\n\n        books\n            .get(token_id)\n            .map(|book| book.snapshot()) // Create a snapshot copy\n            .ok_or_else(|| {\n                PolyfillError::market_data(\n                    format!(\"No book found for token: {}\", token_id),\n                    crate::errors::MarketDataErrorKind::TokenNotFound,\n                )\n            })\n    }\n\n    /// Get all available books\n    /// Returns snapshots of every book we're currently tracking\n    pub fn get_all_books(\u0026self) -\u003e Result\u003cVec\u003ccrate::types::OrderBook\u003e\u003e {\n        let books = self.books.read().map_err(|_| {\n            PolyfillError::internal_simple(\"Failed to acquire book lock\")\n        })?;\n\n        Ok(books.values().map(|book| book.snapshot()).collect())\n    }\n\n    /// Remove stale books\n    /// Cleans up books that haven't been updated recently (probably disconnected)\n    /// This prevents memory leaks from accumulating dead books\n    pub fn cleanup_stale_books(\u0026self, max_age: std::time::Duration) -\u003e Result\u003cusize\u003e {\n        let mut books = self.books.write().map_err(|_| {\n            PolyfillError::internal_simple(\"Failed to acquire book lock\")\n        })?;\n\n        let initial_count = books.len();\n        books.retain(|_, book| !book.is_stale(max_age)); // Keep only non-stale books\n        let removed = initial_count - books.len();\n\n        if removed \u003e 0 {\n            debug!(\"Removed {} stale order books\", removed);\n        }\n\n        Ok(removed)\n    }\n}\n\n/// Order book analytics and statistics\n/// Provides a summary view of the book's health and characteristics\n#[derive(Debug, Clone)]\npub struct BookAnalytics {\n    pub token_id: String,\n    pub timestamp: chrono::DateTime\u003cUtc\u003e,\n    pub bid_count: usize,          // How many different bid price levels\n    pub ask_count: usize,          // How many different ask price levels\n    pub total_bid_size: Decimal,   // Total size of all bids combined\n    pub total_ask_size: Decimal,   // Total size of all asks combined\n    pub spread: Option\u003cDecimal\u003e,   // Current spread (ask - bid)\n    pub spread_pct: Option\u003cDecimal\u003e, // Spread as percentage\n    pub mid_price: Option\u003cDecimal\u003e, // Current mid price\n    pub volatility: Option\u003cDecimal\u003e, // Price volatility (if calculated)\n}\n\nimpl OrderBook {\n    /// Calculate analytics for this book\n    /// Gives you a quick health check of the market\n    pub fn analytics(\u0026self) -\u003e BookAnalytics {\n        let bid_count = self.bids.len();\n        let ask_count = self.asks.len();\n        // Sum up all bid/ask sizes, converting from fixed-point back to Decimal\n        let total_bid_size_units: i64 = self.bids.values().sum();\n        let total_ask_size_units: i64 = self.asks.values().sum();\n        let total_bid_size = qty_to_decimal(total_bid_size_units);\n        let total_ask_size = qty_to_decimal(total_ask_size_units);\n\n        BookAnalytics {\n            token_id: self.token_id.clone(),\n            timestamp: self.timestamp,\n            bid_count,\n            ask_count,\n            total_bid_size,\n            total_ask_size,\n            spread: self.spread(),\n            spread_pct: self.spread_pct(),\n            mid_price: self.mid_price(),\n            volatility: self.calculate_volatility(),\n        }\n    }\n\n    /// Calculate price volatility (simplified)\n    /// This is a placeholder - real volatility needs historical price data\n    fn calculate_volatility(\u0026self) -\u003e Option\u003cDecimal\u003e {\n        // This is a simplified volatility calculation\n        // In a real implementation, you'd want to track price history over time\n        // and calculate standard deviation of price changes\n        None\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n    use rust_decimal_macros::dec; // Convenient macro for creating Decimal literals\n\n    #[test]\n    fn test_order_book_creation() {\n        // Test that we can create a new empty order book\n        let book = OrderBook::new(\"test_token\".to_string(), 10);\n        assert_eq!(book.token_id, \"test_token\");\n        assert_eq!(book.bids.len(), 0); // Should start empty\n        assert_eq!(book.asks.len(), 0); // Should start empty\n    }\n\n    #[test]\n    fn test_apply_delta() {\n        // Test that we can apply order book updates\n        let mut book = OrderBook::new(\"test_token\".to_string(), 10);\n        \n        // Create a buy order at $0.50 for 100 tokens\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: Utc::now(),\n            side: Side::BUY,\n            price: dec!(0.5),\n            size: dec!(100),\n            sequence: 1,\n        };\n\n        book.apply_delta(delta).unwrap();\n        assert_eq!(book.sequence, 1); // Sequence should update\n        assert_eq!(book.best_bid().unwrap().price, dec!(0.5)); // Should be our bid\n        assert_eq!(book.best_bid().unwrap().size, dec!(100)); // Should be our size\n    }\n\n    #[test]\n    fn test_spread_calculation() {\n        // Test that we can calculate the spread between bid and ask\n        let mut book = OrderBook::new(\"test_token\".to_string(), 10);\n        \n        // Add a bid at $0.50\n        book.apply_delta(OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: Utc::now(),\n            side: Side::BUY,\n            price: dec!(0.5),\n            size: dec!(100),\n            sequence: 1,\n        }).unwrap();\n\n        // Add an ask at $0.52\n        book.apply_delta(OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: Utc::now(),\n            side: Side::SELL,\n            price: dec!(0.52),\n            size: dec!(100),\n            sequence: 2,\n        }).unwrap();\n\n        let spread = book.spread().unwrap();\n        assert_eq!(spread, dec!(0.02)); // $0.52 - $0.50 = $0.02\n    }\n\n    #[test]\n    fn test_market_impact() {\n        // Test market impact calculation for a large order\n        let mut book = OrderBook::new(\"test_token\".to_string(), 10);\n        \n        // Add multiple ask levels (people selling at different prices)\n        // $0.50 for 100 tokens, $0.51 for 100 tokens, $0.52 for 100 tokens\n        for (i, price) in [dec!(0.50), dec!(0.51), dec!(0.52)].iter().enumerate() {\n            book.apply_delta(OrderDelta {\n                token_id: \"test_token\".to_string(),\n                timestamp: Utc::now(),\n                side: Side::SELL,\n                price: *price,\n                size: dec!(100),\n                sequence: i as u64 + 1,\n            }).unwrap();\n        }\n\n        // Try to buy 150 tokens (will need to hit multiple price levels)\n        let impact = book.calculate_market_impact(Side::BUY, dec!(150)).unwrap();\n        assert!(impact.average_price \u003e dec!(0.50)); // Should be worse than best price\n        assert!(impact.average_price \u003c dec!(0.51)); // But not as bad as second level\n    }\n} 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Polymarket, optimized for high-frequency trading environments.\n\nuse crate::auth::{create_l1_headers, create_l2_headers};\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::{OrderOptions, PostOrder, SignedOrderRequest};\nuse reqwest::Client;\nuse serde_json::Value;\nuse std::str::FromStr;\nuse rust_decimal::Decimal;\nuse rust_decimal::prelude::FromPrimitive;\nuse alloy_primitives::U256;\nuse alloy_signer_local::PrivateKeySigner;\nuse reqwest::{Method, RequestBuilder};\nuse reqwest::header::HeaderName;\n\n// Re-export types for compatibility\npub use crate::types::{\n    ApiCredentials as ApiCreds, Side, OrderType,\n};\n\n// Compatibility types\n#[derive(Debug)]\npub struct OrderArgs {\n    pub token_id: String,\n    pub price: Decimal,\n    pub size: Decimal,\n    pub side: Side,\n}\n\nimpl OrderArgs {\n    pub fn new(token_id: \u0026str, price: Decimal, size: Decimal, side: Side) -\u003e Self {\n        Self {\n            token_id: token_id.to_string(),\n            price,\n            size,\n            side,\n        }\n    }\n}\n\nimpl Default for OrderArgs {\n    fn default() -\u003e Self {\n        Self {\n            token_id: \"\".to_string(),\n            price: Decimal::ZERO,\n            size: Decimal::ZERO,\n            side: Side::BUY,\n        }\n    }\n}\n\n/// Main client for interacting with Polymarket API\npub struct ClobClient {\n    http_client: Client,\n    base_url: String,\n    chain_id: u64,\n    signer: Option\u003cPrivateKeySigner\u003e,\n    api_creds: Option\u003cApiCreds\u003e,\n    order_builder: Option\u003ccrate::orders::OrderBuilder\u003e,\n}\n\nimpl ClobClient {\n    /// Create a new client\n    pub fn new(host: \u0026str) -\u003e Self {\n        Self {\n            http_client: Client::new(),\n            base_url: host.to_string(),\n            chain_id: 137, // Default to Polygon\n            signer: None,\n            api_creds: None,\n            order_builder: None,\n        }\n    }\n\n    /// Create a client with L1 headers (for authentication)\n    pub fn with_l1_headers(host: \u0026str, private_key: \u0026str, chain_id: u64) -\u003e Self {\n        let signer = private_key.parse::\u003cPrivateKeySigner\u003e()\n            .expect(\"Invalid private key\");\n        \n        let order_builder = crate::orders::OrderBuilder::new(signer.clone(), None, None);\n        \n        Self {\n            http_client: Client::new(),\n            base_url: host.to_string(),\n            chain_id,\n            signer: Some(signer),\n            api_creds: None,\n            order_builder: Some(order_builder),\n        }\n    }\n\n    /// Create a client with L2 headers (for API key authentication)\n    pub fn with_l2_headers(host: \u0026str, private_key: \u0026str, chain_id: u64, api_creds: ApiCreds) -\u003e Self {\n        let signer = private_key.parse::\u003cPrivateKeySigner\u003e()\n            .expect(\"Invalid private key\");\n        \n        let order_builder = crate::orders::OrderBuilder::new(signer.clone(), None, None);\n        \n        Self {\n            http_client: Client::new(),\n            base_url: host.to_string(),\n            chain_id,\n            signer: Some(signer),\n            api_creds: Some(api_creds),\n            order_builder: Some(order_builder),\n        }\n    }\n\n    /// Set API credentials\n    pub fn set_api_creds(\u0026mut self, api_creds: ApiCreds) {\n        self.api_creds = Some(api_creds);\n    }\n\n    /// Test basic connectivity\n    pub async fn get_ok(\u0026self) -\u003e bool {\n        match self.http_client.get(\u0026format!(\"{}/ok\", self.base_url)).send().await {\n            Ok(response) =\u003e response.status().is_success(),\n            Err(_) =\u003e false,\n        }\n    }\n\n    /// Get server time\n    pub async fn get_server_time(\u0026self) -\u003e Result\u003cu64\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/time\", self.base_url))\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get server time\"));\n        }\n\n        let time_text = response.text().await?;\n        let timestamp = time_text.trim()\n            .parse::\u003cu64\u003e()\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid timestamp format: {}\", e), None))?;\n\n        Ok(timestamp)\n    }\n\n\n    /// Get order book for a token\n    pub async fn get_order_book(\u0026self, token_id: \u0026str) -\u003e Result\u003cOrderBookSummary\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/book\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get order book\"));\n        }\n\n        let order_book: OrderBookSummary = response.json().await?;\n        Ok(order_book)\n    }\n\n    /// Get midpoint for a token\n    pub async fn get_midpoint(\u0026self, token_id: \u0026str) -\u003e Result\u003cMidpointResponse\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/midpoint\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get midpoint\"));\n        }\n\n        let midpoint: MidpointResponse = response.json().await?;\n        Ok(midpoint)\n    }\n\n    /// Get spread for a token\n    pub async fn get_spread(\u0026self, token_id: \u0026str) -\u003e Result\u003cSpreadResponse\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/spread\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get spread\"));\n        }\n\n        let spread: SpreadResponse = response.json().await?;\n        Ok(spread)\n    }\n\n    /// Get spreads for multiple tokens (batch)\n    pub async fn get_spreads(\u0026self, token_ids: \u0026[String]) -\u003e Result\u003cstd::collections::HashMap\u003cString, Decimal\u003e\u003e {\n        let request_data: Vec\u003cstd::collections::HashMap\u003c\u0026str, String\u003e\u003e = token_ids\n            .iter()\n            .map(|id| {\n                let mut map = std::collections::HashMap::new();\n                map.insert(\"token_id\", id.clone());\n                map\n            })\n            .collect();\n\n        let response = self.http_client\n            .post(\u0026format!(\"{}/spreads\", self.base_url))\n            .json(\u0026request_data)\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get batch spreads\"));\n        }\n\n        response.json::\u003cstd::collections::HashMap\u003cString, Decimal\u003e\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get price for a token and side\n    pub async fn get_price(\u0026self, token_id: \u0026str, side: Side) -\u003e Result\u003cPriceResponse\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/price\", self.base_url))\n            .query(\u0026[\n                (\"token_id\", token_id),\n                (\"side\", side.as_str()),\n            ])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get price\"));\n        }\n\n        let price: PriceResponse = response.json().await?;\n        Ok(price)\n    }\n\n    /// Get tick size for a token\n    pub async fn get_tick_size(\u0026self, token_id: \u0026str) -\u003e Result\u003cDecimal\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/tick-size\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get tick size\"));\n        }\n\n        let tick_size_response: Value = response.json().await?;\n        let tick_size = tick_size_response[\"minimum_tick_size\"]\n            .as_str()\n            .and_then(|s| Decimal::from_str(s).ok())\n            .or_else(|| tick_size_response[\"minimum_tick_size\"].as_f64().map(|f| Decimal::from_f64(f).unwrap_or(Decimal::ZERO)))\n            .ok_or_else(|| PolyfillError::parse(\"Invalid tick size format\", None))?;\n\n        Ok(tick_size)\n    }\n\n    /// Create a new API key\n    pub async fn create_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e Result\u003cApiCreds\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        \n        let headers = create_l1_headers(signer, nonce)?;\n        let req = self.create_request_with_headers(Method::POST, \"/auth/api-key\", headers.into_iter());\n        \n        let response = req.send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to create API key\"));\n        }\n        \n        Ok(response.json::\u003cApiCreds\u003e().await?)\n    }\n\n    /// Derive an existing API key\n    pub async fn derive_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e Result\u003cApiCreds\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        \n        let headers = create_l1_headers(signer, nonce)?;\n        let req = self.create_request_with_headers(Method::GET, \"/auth/derive-api-key\", headers.into_iter());\n        \n        let response = req.send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to derive API key\"));\n        }\n        \n        Ok(response.json::\u003cApiCreds\u003e().await?)\n    }\n\n    /// Create or derive API key (try create first, fallback to derive)\n    pub async fn create_or_derive_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e Result\u003cApiCreds\u003e {\n        match self.create_api_key(nonce).await {\n            Ok(creds) =\u003e Ok(creds),\n            Err(_) =\u003e self.derive_api_key(nonce).await,\n        }\n    }\n\n    /// Get all API keys for the authenticated user\n    pub async fn get_api_keys(\u0026self) -\u003e Result\u003cVec\u003cString\u003e\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::GET;\n        let endpoint = \"/auth/api-keys\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        let api_keys_response: crate::types::ApiKeysResponse = response.json().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))?;\n\n        Ok(api_keys_response.api_keys)\n    }\n\n    /// Delete the current API key\n    pub async fn delete_api_key(\u0026self) -\u003e Result\u003cString\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::DELETE;\n        let endpoint = \"/auth/api-key\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.text().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Helper to create request with headers\n    fn create_request_with_headers(\n        \u0026self,\n        method: Method,\n        endpoint: \u0026str,\n        headers: impl Iterator\u003cItem = (\u0026'static str, String)\u003e,\n    ) -\u003e RequestBuilder {\n        let req = self.http_client.request(method, format!(\"{}{}\", \u0026self.base_url, endpoint));\n        headers.fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v))\n    }\n\n    /// Get neg risk for a token\n    pub async fn get_neg_risk(\u0026self, token_id: \u0026str) -\u003e Result\u003cbool\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/neg-risk\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get neg risk\"));\n        }\n\n        let neg_risk_response: Value = response.json().await?;\n        let neg_risk = neg_risk_response[\"neg_risk\"]\n            .as_bool()\n            .ok_or_else(|| PolyfillError::parse(\"Invalid neg risk format\", None))?;\n\n        Ok(neg_risk)\n    }\n\n    /// Resolve tick size for an order\n    async fn resolve_tick_size(\n        \u0026self,\n        token_id: \u0026str,\n        tick_size: Option\u003cDecimal\u003e,\n    ) -\u003e Result\u003cDecimal\u003e {\n        let min_tick_size = self.get_tick_size(token_id).await?;\n\n        match tick_size {\n            None =\u003e Ok(min_tick_size),\n            Some(t) =\u003e {\n                if t \u003c min_tick_size {\n                    Err(PolyfillError::validation(format!(\n                        \"Tick size {} is smaller than min_tick_size {} for token_id: {}\",\n                        t, min_tick_size, token_id\n                    )))\n                } else {\n                    Ok(t)\n                }\n            }\n        }\n    }\n\n    /// Get filled order options\n    async fn get_filled_order_options(\n        \u0026self,\n        token_id: \u0026str,\n        options: Option\u003c\u0026OrderOptions\u003e,\n    ) -\u003e Result\u003cOrderOptions\u003e {\n        let (tick_size, neg_risk, fee_rate_bps) = match options {\n            Some(o) =\u003e (o.tick_size, o.neg_risk, o.fee_rate_bps),\n            None =\u003e (None, None, None),\n        };\n\n        let tick_size = self.resolve_tick_size(token_id, tick_size).await?;\n        let neg_risk = match neg_risk {\n            Some(nr) =\u003e nr,\n            None =\u003e self.get_neg_risk(token_id).await?,\n        };\n\n        Ok(OrderOptions {\n            tick_size: Some(tick_size),\n            neg_risk: Some(neg_risk),\n            fee_rate_bps,\n        })\n    }\n\n    /// Check if price is in valid range\n    fn is_price_in_range(\u0026self, price: Decimal, tick_size: Decimal) -\u003e bool {\n        let min_price = tick_size;\n        let max_price = Decimal::ONE - tick_size;\n        price \u003e= min_price \u0026\u0026 price \u003c= max_price\n    }\n\n    /// Create an order\n    pub async fn create_order(\n        \u0026self,\n        order_args: \u0026OrderArgs,\n        expiration: Option\u003cu64\u003e,\n        extras: Option\u003ccrate::types::ExtraOrderArgs\u003e,\n        options: Option\u003c\u0026OrderOptions\u003e,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let order_builder = self.order_builder.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Order builder not initialized\"))?;\n\n        let create_order_options = self\n            .get_filled_order_options(\u0026order_args.token_id, options)\n            .await?;\n        \n        let expiration = expiration.unwrap_or(0);\n        let extras = extras.unwrap_or_default();\n\n        if !self.is_price_in_range(\n            order_args.price,\n            create_order_options.tick_size.expect(\"Should be filled\"),\n        ) {\n            return Err(PolyfillError::validation(\"Price is not in range of tick_size\"));\n        }\n\n        order_builder.create_order(\n            self.chain_id,\n            order_args,\n            expiration,\n            \u0026extras,\n            \u0026create_order_options,\n        )\n    }\n\n    /// Calculate market price from order book\n    async fn calculate_market_price(\n        \u0026self,\n        token_id: \u0026str,\n        side: Side,\n        amount: Decimal,\n    ) -\u003e Result\u003cDecimal\u003e {\n        let book = self.get_order_book(token_id).await?;\n        let order_builder = self.order_builder.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Order builder not initialized\"))?;\n\n        // Convert OrderSummary to BookLevel\n        let levels: Vec\u003ccrate::types::BookLevel\u003e = match side {\n            Side::BUY =\u003e book.asks.into_iter().map(|s| crate::types::BookLevel {\n                price: s.price,\n                size: s.size,\n            }).collect(),\n            Side::SELL =\u003e book.bids.into_iter().map(|s| crate::types::BookLevel {\n                price: s.price,\n                size: s.size,\n            }).collect(),\n        };\n\n        order_builder.calculate_market_price(\u0026levels, amount)\n    }\n\n    /// Create a market order\n    pub async fn create_market_order(\n        \u0026self,\n        order_args: \u0026crate::types::MarketOrderArgs,\n        extras: Option\u003ccrate::types::ExtraOrderArgs\u003e,\n        options: Option\u003c\u0026OrderOptions\u003e,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let order_builder = self.order_builder.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Order builder not initialized\"))?;\n\n        let create_order_options = self\n            .get_filled_order_options(\u0026order_args.token_id, options)\n            .await?;\n\n        let extras = extras.unwrap_or_default();\n        let price = self\n            .calculate_market_price(\u0026order_args.token_id, Side::BUY, order_args.amount)\n            .await?;\n\n        if !self.is_price_in_range(\n            price,\n            create_order_options.tick_size.expect(\"Should be filled\"),\n        ) {\n            return Err(PolyfillError::validation(\"Price is not in range of tick_size\"));\n        }\n\n        order_builder.create_market_order(\n            self.chain_id,\n            order_args,\n            price,\n            \u0026extras,\n            \u0026create_order_options,\n        )\n    }\n\n    /// Post an order to the exchange\n    pub async fn post_order(\n        \u0026self,\n        order: SignedOrderRequest,\n        order_type: OrderType,\n    ) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let body = PostOrder::new(order, api_creds.api_key.clone(), order_type);\n\n        let headers = create_l2_headers(signer, api_creds, \"POST\", \"/order\", Some(\u0026body))?;\n        let req = self.create_request_with_headers(Method::POST, \"/order\", headers.into_iter());\n\n        let response = req.json(\u0026body).send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to post order\"));\n        }\n\n        Ok(response.json::\u003cValue\u003e().await?)\n    }\n\n    /// Create and post an order in one call\n    pub async fn create_and_post_order(\u0026self, order_args: \u0026OrderArgs) -\u003e Result\u003cValue\u003e {\n        let order = self.create_order(order_args, None, None, None).await?;\n        self.post_order(order, OrderType::GTC).await\n    }\n\n    /// Cancel an order\n    pub async fn cancel(\u0026self, order_id: \u0026str) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let body = std::collections::HashMap::from([(\"orderID\", order_id)]);\n\n        let headers = create_l2_headers(signer, api_creds, \"DELETE\", \"/order\", Some(\u0026body))?;\n        let req = self.create_request_with_headers(Method::DELETE, \"/order\", headers.into_iter());\n\n        let response = req.json(\u0026body).send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to cancel order\"));\n        }\n\n        Ok(response.json::\u003cValue\u003e().await?)\n    }\n\n    /// Cancel multiple orders\n    pub async fn cancel_orders(\u0026self, order_ids: \u0026[String]) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let headers = create_l2_headers(signer, api_creds, \"DELETE\", \"/orders\", Some(order_ids))?;\n        let req = self.create_request_with_headers(Method::DELETE, \"/orders\", headers.into_iter());\n\n        let response = req.json(order_ids).send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to cancel orders\"));\n        }\n\n        Ok(response.json::\u003cValue\u003e().await?)\n    }\n\n    /// Cancel all orders\n    pub async fn cancel_all(\u0026self) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, \"DELETE\", \"/cancel-all\", None)?;\n        let req = self.create_request_with_headers(Method::DELETE, \"/cancel-all\", headers.into_iter());\n\n        let response = req.send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to cancel all orders\"));\n        }\n\n        Ok(response.json::\u003cValue\u003e().await?)\n    }\n\n    /// Get open orders with optional filtering\n    /// \n    /// This retrieves all open orders for the authenticated user. You can filter by:\n    /// - Order ID (exact match)\n    /// - Asset/Token ID (all orders for a specific token)\n    /// - Market ID (all orders for a specific market)\n    /// \n    /// The response includes order status, fill information, and timestamps.\n    pub async fn get_orders(\u0026self, params: Option\u003c\u0026crate::types::OpenOrderParams\u003e, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003cVec\u003ccrate::types::OpenOrder\u003e\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let method = Method::GET;\n        let endpoint = \"/data/orders\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let query_params = match params {\n            None =\u003e Vec::new(),\n            Some(p) =\u003e p.to_query_params(),\n        };\n\n        let mut next_cursor = next_cursor.unwrap_or(\"MA==\").to_string(); // INITIAL_CURSOR\n        let mut output = Vec::new();\n        \n        while next_cursor != \"LTE=\" { // END_CURSOR\n            let req = self.http_client\n                .request(method.clone(), format!(\"{}{}\", self.base_url, endpoint))\n                .query(\u0026query_params)\n                .query(\u0026[(\"next_cursor\", \u0026next_cursor)]);\n\n            let r = headers\n                .clone()\n                .into_iter()\n                .fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v));\n\n            let resp = r.send().await\n                .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?\n                .json::\u003cValue\u003e().await\n                .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))?;\n\n            let new_cursor = resp[\"next_cursor\"]\n                .as_str()\n                .ok_or_else(|| PolyfillError::parse(\"Failed to parse next cursor\".to_string(), None))?\n                .to_owned();\n\n            next_cursor = new_cursor;\n\n            let results = resp[\"data\"].clone();\n            let orders = serde_json::from_value::\u003cVec\u003ccrate::types::OpenOrder\u003e\u003e(results)\n                .map_err(|e| PolyfillError::parse(format!(\"Failed to parse data from order response: {}\", e), None))?;\n            output.extend(orders);\n        }\n        \n        Ok(output)\n    }\n\n    /// Get trade history with optional filtering\n    /// \n    /// This retrieves historical trades for the authenticated user. You can filter by:\n    /// - Trade ID (exact match)\n    /// - Maker address (trades where you were the maker)\n    /// - Market ID (trades in a specific market)\n    /// - Asset/Token ID (trades for a specific token)\n    /// - Time range (before/after timestamps)\n    /// \n    /// Trades are returned in reverse chronological order (newest first).\n    pub async fn get_trades(\u0026self, trade_params: Option\u003c\u0026crate::types::TradeParams\u003e, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003cVec\u003cValue\u003e\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let method = Method::GET;\n        let endpoint = \"/data/trades\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let query_params = match trade_params {\n            None =\u003e Vec::new(),\n            Some(p) =\u003e p.to_query_params(),\n        };\n\n        let mut next_cursor = next_cursor.unwrap_or(\"MA==\").to_string(); // INITIAL_CURSOR\n        let mut output = Vec::new();\n        \n        while next_cursor != \"LTE=\" { // END_CURSOR\n            let req = self.http_client\n                .request(method.clone(), format!(\"{}{}\", self.base_url, endpoint))\n                .query(\u0026query_params)\n                .query(\u0026[(\"next_cursor\", \u0026next_cursor)]);\n\n            let r = headers\n                .clone()\n                .into_iter()\n                .fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v));\n\n            let resp = r.send().await\n                .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?\n                .json::\u003cValue\u003e().await\n                .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))?;\n\n            let new_cursor = resp[\"next_cursor\"]\n                .as_str()\n                .ok_or_else(|| PolyfillError::parse(\"Failed to parse next cursor\".to_string(), None))?\n                .to_owned();\n\n            next_cursor = new_cursor;\n\n            let results = resp[\"data\"].clone();\n            output.push(results);\n        }\n        \n        Ok(output)\n    }\n\n    /// Get balance and allowance information for all assets\n    /// \n    /// This returns the current balance and allowance for each asset in your account.\n    /// Balance is how much you own, allowance is how much the exchange can spend on your behalf.\n    /// \n    /// You need both balance and allowance to place orders - the exchange needs permission\n    /// to move your tokens when orders are filled.\n    pub async fn get_balance_allowance(\u0026self, params: Option\u003ccrate::types::BalanceAllowanceParams\u003e) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let mut params = params.unwrap_or_default();\n        if params.signature_type.is_none() {\n            params.set_signature_type(\n                self.order_builder\n                    .as_ref()\n                    .expect(\"OrderBuilder not set\")\n                    .get_sig_type(),\n            );\n        }\n\n        let query_params = params.to_query_params();\n\n        let method = Method::GET;\n        let endpoint = \"/balance-allowance\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .query(\u0026query_params)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Set up notifications for order fills and other events\n    /// \n    /// This configures push notifications so you get alerted when:\n    /// - Your orders get filled\n    /// - Your orders get cancelled\n    /// - Market conditions change significantly\n    /// \n    /// The signature proves you own the account and want to receive notifications.\n    pub async fn get_notifications(\u0026self) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let method = Method::GET;\n        let endpoint = \"/notifications\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .query(\u0026[(\n                \"signature_type\",\n                \u0026self\n                    .order_builder\n                    .as_ref()\n                    .expect(\"OrderBuilder not set\")\n                    .get_sig_type().to_string(),\n            )])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get midpoints for multiple tokens in a single request\n    /// \n    /// This is much more efficient than calling get_midpoint() multiple times.\n    /// Instead of N round trips, you make just 1 request and get all the midpoints back.\n    /// \n    /// Midpoints are returned as a HashMap where the key is the token_id and the value\n    /// is the midpoint price (or None if there's no valid midpoint).\n    pub async fn get_midpoints(\u0026self, token_ids: \u0026[String]) -\u003e Result\u003cstd::collections::HashMap\u003cString, Decimal\u003e\u003e {\n        let request_data: Vec\u003cstd::collections::HashMap\u003c\u0026str, String\u003e\u003e = token_ids\n            .iter()\n            .map(|id| {\n                let mut map = std::collections::HashMap::new();\n                map.insert(\"token_id\", id.clone());\n                map\n            })\n            .collect();\n        \n        let response = self.http_client\n            .post(\u0026format!(\"{}/midpoints\", self.base_url))\n            .json(\u0026request_data)\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get batch midpoints\"));\n        }\n\n        let midpoints: std::collections::HashMap\u003cString, Decimal\u003e = response.json().await?;\n        Ok(midpoints)\n    }\n\n    /// Get bid/ask/mid prices for multiple tokens in a single request\n    /// \n    /// This gives you the full price picture for multiple tokens at once.\n    /// Much more efficient than individual calls, especially when you're tracking\n    /// a portfolio or comparing multiple markets.\n    /// \n    /// Returns bid (best buy price), ask (best sell price), and mid (average) for each token.\n    pub async fn get_prices(\u0026self, book_params: \u0026[crate::types::BookParams]) -\u003e Result\u003cstd::collections::HashMap\u003cString, std::collections::HashMap\u003cSide, Decimal\u003e\u003e\u003e {\n        let request_data: Vec\u003cstd::collections::HashMap\u003c\u0026str, String\u003e\u003e = book_params\n            .iter()\n            .map(|params| {\n                let mut map = std::collections::HashMap::new();\n                map.insert(\"token_id\", params.token_id.clone());\n                map.insert(\"side\", params.side.as_str().to_string());\n                map\n            })\n            .collect();\n        \n        let response = self.http_client\n            .post(\u0026format!(\"{}/prices\", self.base_url))\n            .json(\u0026request_data)\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get batch prices\"));\n        }\n\n        let prices: std::collections::HashMap\u003cString, std::collections::HashMap\u003cSide, Decimal\u003e\u003e = response.json().await?;\n        Ok(prices)\n    }\n\n    /// Get order book for multiple tokens (batch) - reference implementation compatible\n    pub async fn get_order_books(\u0026self, token_ids: \u0026[String]) -\u003e Result\u003cVec\u003cOrderBookSummary\u003e\u003e {\n        let request_data: Vec\u003cstd::collections::HashMap\u003c\u0026str, String\u003e\u003e = token_ids\n            .iter()\n            .map(|id| {\n                let mut map = std::collections::HashMap::new();\n                map.insert(\"token_id\", id.clone());\n                map\n            })\n            .collect();\n\n        let response = self.http_client\n            .post(\u0026format!(\"{}/books\", self.base_url))\n            .json(\u0026request_data)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cVec\u003cOrderBookSummary\u003e\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get single order by ID\n    pub async fn get_order(\u0026self, order_id: \u0026str) -\u003e Result\u003ccrate::types::OpenOrder\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::GET;\n        let endpoint = \u0026format!(\"/data/order/{}\", order_id);\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::OpenOrder\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get last trade price for a token\n    pub async fn get_last_trade_price(\u0026self, token_id: \u0026str) -\u003e Result\u003cValue\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/last-trade-price\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get last trade prices for multiple tokens\n    pub async fn get_last_trade_prices(\u0026self, token_ids: \u0026[String]) -\u003e Result\u003cValue\u003e {\n        let request_data: Vec\u003cstd::collections::HashMap\u003c\u0026str, String\u003e\u003e = token_ids\n            .iter()\n            .map(|id| {\n                let mut map = std::collections::HashMap::new();\n                map.insert(\"token_id\", id.clone());\n                map\n            })\n            .collect();\n\n        let response = self.http_client\n            .post(\u0026format!(\"{}/last-trades-prices\", self.base_url))\n            .json(\u0026request_data)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Cancel market orders with optional filters\n    pub async fn cancel_market_orders(\u0026self, market: Option\u003c\u0026str\u003e, asset_id: Option\u003c\u0026str\u003e) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::DELETE;\n        let endpoint = \"/cancel-market-orders\";\n        let body = std::collections::HashMap::from([\n            (\"market\", market.unwrap_or(\"\")),\n            (\"asset_id\", asset_id.unwrap_or(\"\")),\n        ]);\n\n        let headers = create_l2_headers(signer, api_creds, method.as_str(), endpoint, Some(\u0026body))?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .json(\u0026body)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Drop (delete) notifications by IDs\n    pub async fn drop_notifications(\u0026self, ids: \u0026[String]) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::DELETE;\n        let endpoint = \"/notifications\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .query(\u0026[(\"ids\", ids.join(\",\"))])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Update balance allowance\n    pub async fn update_balance_allowance(\u0026self, params: Option\u003ccrate::types::BalanceAllowanceParams\u003e) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let mut params = params.unwrap_or_default();\n        if params.signature_type.is_none() {\n            params.set_signature_type(\n                self.order_builder\n                    .as_ref()\n                    .expect(\"OrderBuilder not set\")\n                    .get_sig_type(),\n            );\n        }\n\n        let query_params = params.to_query_params();\n\n        let method = Method::GET;\n        let endpoint = \"/balance-allowance/update\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .query(\u0026query_params)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Check if an order is scoring\n    pub async fn is_order_scoring(\u0026self, order_id: \u0026str) -\u003e Result\u003cbool\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::GET;\n        let endpoint = \"/order-scoring\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .query(\u0026[(\"order_id\", order_id)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        let result: Value = response.json().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))?;\n\n        Ok(result[\"scoring\"].as_bool().unwrap_or(false))\n    }\n\n    /// Check if multiple orders are scoring\n    pub async fn are_orders_scoring(\u0026self, order_ids: \u0026[\u0026str]) -\u003e Result\u003cstd::collections::HashMap\u003cString, bool\u003e\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::POST;\n        let endpoint = \"/orders-scoring\";\n        let headers = create_l2_headers(signer, api_creds, method.as_str(), endpoint, Some(order_ids))?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .json(order_ids)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cstd::collections::HashMap\u003cString, bool\u003e\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get sampling markets with pagination\n    pub async fn get_sampling_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003ccrate::types::MarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(\"MA==\"); // INITIAL_CURSOR\n\n        let response = self.http_client\n            .get(\u0026format!(\"{}/sampling-markets\", self.base_url))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::MarketsResponse\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get sampling simplified markets with pagination\n    pub async fn get_sampling_simplified_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003ccrate::types::SimplifiedMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(\"MA==\"); // INITIAL_CURSOR\n\n        let response = self.http_client\n            .get(\u0026format!(\"{}/sampling-simplified-markets\", self.base_url))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::SimplifiedMarketsResponse\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get markets with pagination\n    pub async fn get_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003ccrate::types::MarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(\"MA==\"); // INITIAL_CURSOR\n\n        let response = self.http_client\n            .get(\u0026format!(\"{}/markets\", self.base_url))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::MarketsResponse\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get simplified markets with pagination\n    pub async fn get_simplified_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003ccrate::types::SimplifiedMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(\"MA==\"); // INITIAL_CURSOR\n\n        let response = self.http_client\n            .get(\u0026format!(\"{}/simplified-markets\", self.base_url))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::SimplifiedMarketsResponse\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get single market by condition ID\n    pub async fn get_market(\u0026self, condition_id: \u0026str) -\u003e Result\u003ccrate::types::Market\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/markets/{}\", self.base_url, condition_id))\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::Market\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get market trades events\n    pub async fn get_market_trades_events(\u0026self, condition_id: \u0026str) -\u003e Result\u003cValue\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/live-activity/events/{}\", self.base_url, condition_id))\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n}\n\n// Re-export types from the canonical location in types.rs\npub use crate::types::{\n    ExtraOrderArgs, MarketOrderArgs, OrderBookSummary, OrderSummary, \n    MidpointResponse, SpreadResponse, PriceResponse, TickSizeResponse, \n    NegRiskResponse, MarketsResponse, Market, Token, Rewards,\n};\n\n// Compatibility types that need to stay in client.rs\n#[derive(Debug, Default)]\npub struct CreateOrderOptions {\n    pub tick_size: Option\u003cDecimal\u003e,\n    pub neg_risk: Option\u003cbool\u003e,\n}\n\n// Re-export for compatibility\npub type PolyfillClient = ClobClient;\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n    use crate::types::*;\n    use mockito::{Matcher, Server};\n    use rust_decimal::Decimal;\n    use std::str::FromStr;\n    use tokio;\n\n    fn create_test_client(base_url: \u0026str) -\u003e ClobClient {\n        ClobClient::new(base_url)\n    }\n\n    fn create_test_client_with_auth(base_url: \u0026str) -\u003e ClobClient {\n        ClobClient::with_l1_headers(\n            base_url,\n            \"0x1234567890123456789012345678901234567890123456789012345678901234\",\n            137,\n        )\n    }\n\n    #[tokio::test]\n    async fn test_client_creation() {\n        let client = create_test_client(\"https://test.example.com\");\n        assert_eq!(client.base_url, \"https://test.example.com\");\n        assert!(client.signer.is_none());\n        assert!(client.api_creds.is_none());\n    }\n\n    #[tokio::test]\n    async fn test_client_with_l1_headers() {\n        let client = create_test_client_with_auth(\"https://test.example.com\");\n        assert_eq!(client.base_url, \"https://test.example.com\");\n        assert!(client.signer.is_some());\n        assert_eq!(client.chain_id, 137);\n    }\n\n    #[tokio::test]\n    async fn test_client_with_l2_headers() {\n        let api_creds = ApiCredentials {\n            api_key: \"test_key\".to_string(),\n            secret: \"test_secret\".to_string(),\n            passphrase: \"test_passphrase\".to_string(),\n        };\n        \n        let client = ClobClient::with_l2_headers(\n            \"https://test.example.com\",\n            \"0x1234567890123456789012345678901234567890123456789012345678901234\",\n            137,\n            api_creds.clone(),\n        );\n        \n        assert_eq!(client.base_url, \"https://test.example.com\");\n        assert!(client.signer.is_some());\n        assert!(client.api_creds.is_some());\n        assert_eq!(client.chain_id, 137);\n    }\n\n    #[tokio::test]\n    async fn test_set_api_creds() {\n        let mut client = create_test_client(\"https://test.example.com\");\n        assert!(client.api_creds.is_none());\n\n        let api_creds = ApiCredentials {\n            api_key: \"test_key\".to_string(),\n            secret: \"test_secret\".to_string(),\n            passphrase: \"test_passphrase\".to_string(),\n        };\n\n        client.set_api_creds(api_creds.clone());\n        assert!(client.api_creds.is_some());\n        assert_eq!(client.api_creds.unwrap().api_key, \"test_key\");\n    }\n\n    #[tokio::test]\n    async fn test_get_sampling_markets_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"limit\": \"10\",\n            \"count\": \"2\", \n            \"next_cursor\": null,\n            \"data\": [\n                {\n                    \"condition_id\": \"0x123\",\n                    \"tokens\": [\n                        {\"token_id\": \"0x456\", \"outcome\": \"Yes\"},\n                        {\"token_id\": \"0x789\", \"outcome\": \"No\"}\n                    ],\n                    \"rewards\": {\n                        \"rates\": null,\n                        \"min_size\": \"1.0\",\n                        \"max_spread\": \"0.1\",\n                        \"event_start_date\": null,\n                        \"event_end_date\": null,\n                        \"in_game_multiplier\": null,\n                        \"reward_epoch\": null\n                    },\n                    \"min_incentive_size\": null,\n                    \"max_incentive_spread\": null,\n                    \"active\": true,\n                    \"closed\": false,\n                    \"question_id\": \"0x123\",\n                    \"minimum_order_size\": \"1.0\",\n                    \"minimum_tick_size\": \"0.01\",\n                    \"description\": \"Test market\",\n                    \"category\": \"test\",\n                    \"end_date_iso\": null,\n                    \"game_start_time\": null,\n                    \"question\": \"Will this test pass?\",\n                    \"market_slug\": \"test-market\",\n                    \"seconds_delay\": \"0\",\n                    \"icon\": \"\",\n                    \"fpmm\": \"\"\n                }\n            ]\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/sampling-markets\")\n            .match_query(Matcher::UrlEncoded(\"next_cursor\".into(), \"MA==\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_sampling_markets(None).await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let markets = result.unwrap();\n        assert_eq!(markets.data.len(), 1);\n        assert_eq!(markets.data[0].question, \"Will this test pass?\");\n    }\n\n    #[tokio::test]\n    async fn test_get_sampling_markets_with_cursor() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"limit\": \"5\",\n            \"count\": \"0\",\n            \"next_cursor\": null,\n            \"data\": []\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/sampling-markets\")\n            .match_query(Matcher::AllOf(vec![\n                Matcher::UrlEncoded(\"next_cursor\".into(), \"test_cursor\".into()),\n            ]))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_sampling_markets(Some(\"test_cursor\")).await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let markets = result.unwrap();\n        assert_eq!(markets.data.len(), 0);\n    }\n\n    #[tokio::test]\n    async fn test_get_order_book_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"market\": \"0x123\",\n            \"asset_id\": \"0x123\",\n            \"hash\": \"0xabc123\",\n            \"timestamp\": \"1234567890\",\n            \"bids\": [\n                {\"price\": \"0.75\", \"size\": \"100.0\"}\n            ],\n            \"asks\": [\n                {\"price\": \"0.76\", \"size\": \"50.0\"}\n            ]\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/book\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_order_book(\"0x123\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let book = result.unwrap();\n        assert_eq!(book.market, \"0x123\");\n        assert_eq!(book.bids.len(), 1);\n        assert_eq!(book.asks.len(), 1);\n    }\n\n    #[tokio::test]\n    async fn test_get_midpoint_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"mid\": \"0.755\"\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/midpoint\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_midpoint(\"0x123\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let response = result.unwrap();\n        assert_eq!(response.mid, Decimal::from_str(\"0.755\").unwrap());\n    }\n\n    #[tokio::test]\n    async fn test_get_spread_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"spread\": \"0.01\"\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/spread\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_spread(\"0x123\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let response = result.unwrap();\n        assert_eq!(response.spread, Decimal::from_str(\"0.01\").unwrap());\n    }\n\n    #[tokio::test]\n    async fn test_get_price_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"price\": \"0.76\"\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/price\")\n            .match_query(Matcher::AllOf(vec![\n                Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()),\n                Matcher::UrlEncoded(\"side\".into(), \"BUY\".into()),\n            ]))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_price(\"0x123\", Side::BUY).await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let response = result.unwrap();\n        assert_eq!(response.price, Decimal::from_str(\"0.76\").unwrap());\n    }\n\n    #[tokio::test]\n    async fn test_get_tick_size_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"minimum_tick_size\": \"0.01\"\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/tick-size\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_tick_size(\"0x123\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let tick_size = result.unwrap();\n        assert_eq!(tick_size, Decimal::from_str(\"0.01\").unwrap());\n    }\n\n    #[tokio::test]\n    async fn test_get_neg_risk_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"neg_risk\": false\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/neg-risk\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_neg_risk(\"0x123\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let neg_risk = result.unwrap();\n        assert!(!neg_risk);\n    }\n\n    #[tokio::test]\n    async fn test_api_error_handling() {\n        let mut server = Server::new_async().await;\n        \n        let mock = server\n            .mock(\"GET\", \"/book\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"invalid_token\".into()))\n            .with_status(404)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(r#\"{\"error\": \"Market not found\"}\"#)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_order_book(\"invalid_token\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_err());\n        \n        let error = result.unwrap_err();\n        // The error should be either Network or Api error\n        assert!(matches!(error, PolyfillError::Network { .. }) || matches!(error, PolyfillError::Api { .. }));\n    }\n\n    #[tokio::test]\n    async fn test_network_error_handling() {\n        // Test with invalid URL to simulate network error\n        let client = create_test_client(\"http://invalid-host-that-does-not-exist.com\");\n        let result = client.get_order_book(\"0x123\").await;\n        \n        assert!(result.is_err());\n        let error = result.unwrap_err();\n        assert!(matches!(error, PolyfillError::Network { .. }));\n    }\n\n    #[test]\n    fn test_client_url_validation() {\n        let client = create_test_client(\"https://test.example.com\");\n        assert_eq!(client.base_url, \"https://test.example.com\");\n        \n        let client2 = create_test_client(\"http://localhost:8080\");\n        assert_eq!(client2.base_url, \"http://localhost:8080\");\n    }\n\n    #[tokio::test]\n    async fn test_get_midpoints_batch() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"0x123\": \"0.755\",\n            \"0x456\": \"0.623\"\n        }\"#;\n\n        let mock = server\n            .mock(\"POST\", \"/midpoints\")\n            .with_header(\"content-type\", \"application/json\")\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let token_ids = vec![\"0x123\".to_string(), \"0x456\".to_string()];\n        let result = client.get_midpoints(\u0026token_ids).await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let midpoints = result.unwrap();\n        assert_eq!(midpoints.len(), 2);\n        assert_eq!(midpoints.get(\"0x123\").unwrap(), \u0026Decimal::from_str(\"0.755\").unwrap());\n        assert_eq!(midpoints.get(\"0x456\").unwrap(), \u0026Decimal::from_str(\"0.623\").unwrap());\n    }\n\n    #[test]\n    fn test_client_configuration() {\n        let client = create_test_client(\"https://test.example.com\");\n        \n        // Test initial state\n        assert!(client.signer.is_none());\n        assert!(client.api_creds.is_none());\n        \n        // Test with auth\n        let auth_client = create_test_client_with_auth(\"https://test.example.com\");\n        assert!(auth_client.signer.is_some());\n        assert_eq!(auth_client.chain_id, 137);\n    }\n} 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Contract configuration for Polymarket\n//!\n//! 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   return Some(ContractConfig {\n                    exchange: \"0xd91E80cF2E7be2e162c6513ceD06f1dD0dA35296\".to_owned(),\n                    collateral: \"0x9c4e1703476e875070ee25b56a58b008cfb8fa78\".to_owned(),\n                    conditional_tokens: \"0x69308FB512518e39F9b16112fA8d994F4e2Bf8bB\".to_owned(),\n                });\n            }\n            None\n        }\n        false =\u003e {\n            if chain_id == 137 {\n                return Some(ContractConfig {\n                    exchange: \"0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E\".to_owned(),\n                    collateral: \"0x2791Bca1f2de4661ED88A30C99a7a9449Aa84174\".to_owned(),\n                    conditional_tokens: \"0x4D97DCd97eC945f40cF65F87097ACe5EA0476045\".to_owned(),\n                });\n            } else if chain_id == 80002 {\n                return Some(ContractConfig {\n                    exchange: \"0xdFE02Eb6733538f8Ea35D585af8DE5958AD99E40\".to_owned(),\n                    collateral: \"0x9c4e1703476e875070ee25b56a58b008cfb8fa78\".to_owned(),\n                    conditional_tokens: \"0x69308FB512518e39F9b16112fA8d994F4e2Bf8bB\".to_owned(),\n                });\n            }\n            None\n        }\n    }\n}\n\n/// Network configuration\n#[derive(Debug, Clone)]\npub struct NetworkConfig {\n    pub chain_id: u64,\n    pub name: String,\n    pub rpc_url: String,\n    pub block_explorer: String,\n    pub contracts: HashMap\u003cString, ContractConfig\u003e,\n}\n\nimpl NetworkConfig {\n    /// Get configuration for Polygon mainnet\n    pub fn polygon_mainnet() -\u003e Self {\n        let mut contracts = HashMap::new();\n        contracts.insert(\"standard\".to_string(), get_contract_config(137, false).unwrap());\n        contracts.insert(\"neg_risk\".to_string(), get_contract_config(137, true).unwrap());\n\n        Self {\n            chain_id: 137,\n            name: \"Polygon Mainnet\".to_string(),\n            rpc_url: \"https://polygon-rpc.com\".to_string(),\n            block_explorer: \"https://polygonscan.com\".to_string(),\n            contracts,\n        }\n    }\n\n    /// Get configuration for Polygon Mumbai testnet\n    pub fn polygon_mumbai() -\u003e Self {\n        let mut contracts = HashMap::new();\n        contracts.insert(\"standard\".to_string(), get_contract_config(80002, false).unwrap());\n        contracts.insert(\"neg_risk\".to_string(), get_contract_config(80002, true).unwrap());\n\n        Self {\n            chain_id: 80002,\n            name: \"Polygon Mumbai\".to_string(),\n            rpc_url: \"https://rpc-mumbai.maticvigil.com\".to_string(),\n            block_explorer: \"https://mumbai.polygonscan.com\".to_string(),\n            contracts,\n        }\n    }\n\n    /// Get contract configuration for this network\n    pub fn get_contract(\u0026self, risk_type: \u0026str) -\u003e Option\u003c\u0026ContractConfig\u003e {\n        self.contracts.get(risk_type)\n    }\n}\n\n/// Global configuration\n#[derive(Debug, Clone)]\npub struct GlobalConfig {\n    pub networks: HashMap\u003cu64, NetworkConfig\u003e,\n    pub default_network: u64,\n}\n\nimpl GlobalConfig {\n    /// Create default configuration\n    pub fn new() -\u003e Self {\n        let mut networks = HashMap::new();\n        networks.insert(137, NetworkConfig::polygon_mainnet());\n        networks.insert(80002, NetworkConfig::polygon_mumbai());\n\n        Self {\n            networks,\n            default_network: 137,\n        }\n    }\n\n    /// Get network configuration\n    pub fn get_network(\u0026self, chain_id: u64) -\u003e Option\u003c\u0026NetworkConfig\u003e {\n        self.networks.get(\u0026chain_id)\n    }\n\n    /// Get default network\n    pub fn default_network(\u0026self) -\u003e Option\u003c\u0026NetworkConfig\u003e {\n        self.networks.get(\u0026self.default_network)\n    }\n}\n\nimpl Default for GlobalConfig {\n    fn default() -\u003e Self {\n        Self::new()\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_contract_config() {\n        let config = get_contract_config(137, false);\n        assert!(config.is_some());\n        \n        let config = config.unwrap();\n        assert!(!config.exchange.is_empty());\n        assert!(!config.collateral.is_empty());\n        assert!(!config.conditional_tokens.is_empty());\n    }\n\n    #[test]\n    fn test_network_config() {\n        let polygon = NetworkConfig::polygon_mainnet();\n        assert_eq!(polygon.chain_id, 137);\n        assert_eq!(polygon.name, \"Polygon Mainnet\");\n        \n        let contract = polygon.get_contract(\"standard\");\n        assert!(contract.is_some());\n    }\n\n    #[test]\n    fn test_global_config() {\n        let config = GlobalConfig::new();\n        assert_eq!(config.default_network, 137);\n        \n        let network = config.get_network(137);\n        assert!(network.is_some());\n    }\n} 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This module provides high-performance decoding functions for various\n//! data formats used in trading environments.\n\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::*;\nuse alloy_primitives::{Address, U256};\nuse chrono::{DateTime, Utc};\nuse rust_decimal::Decimal;\nuse serde::{Deserialize, Deserializer};\nuse serde_json::Value;\nuse std::str::FromStr;\n\n/// Fast string to number deserializers\npub mod deserializers {\n    use super::*;\n    use std::fmt::Display;\n\n    /// Deserialize number from string or number\n    pub fn number_from_string\u003c'de, T, D\u003e(deserializer: D) -\u003e std::result::Result\u003cT, D::Error\u003e\n    where\n        D: Deserializer\u003c'de\u003e,\n        T: FromStr + serde::Deserialize\u003c'de\u003e + Clone,\n        \u003cT as FromStr\u003e::Err: Display,\n    {\n        let value = serde_json::Value::deserialize(deserializer)?;\n        match value {\n            serde_json::Value::Number(n) =\u003e {\n                if let Some(v) = n.as_u64() {\n                    T::deserialize(serde_json::Value::Number(serde_json::Number::from(v)))\n                        .map_err(|_| serde::de::Error::custom(\"Failed to deserialize number\"))\n                } else if let Some(v) = n.as_f64() {\n                    T::deserialize(serde_json::Value::Number(serde_json::Number::from_f64(v).unwrap()))\n                        .map_err(|_| serde::de::Error::custom(\"Failed to deserialize number\"))\n                } else {\n                    Err(serde::de::Error::custom(\"Invalid number format\"))\n                }\n            }\n            serde_json::Value::String(s) =\u003e {\n                s.parse::\u003cT\u003e().map_err(serde::de::Error::custom)\n            }\n            _ =\u003e Err(serde::de::Error::custom(\"Expected number or string\")),\n        }\n    }\n\n    /// Deserialize optional number from string\n    pub fn optional_number_from_string\u003c'de, T, D\u003e(\n        deserializer: D,\n    ) -\u003e std::result::Result\u003cOption\u003cT\u003e, D::Error\u003e\n    where\n        D: Deserializer\u003c'de\u003e,\n        T: FromStr + serde::Deserialize\u003c'de\u003e + Clone,\n        \u003cT as FromStr\u003e::Err: Display,\n    {\n        let value = serde_json::Value::deserialize(deserializer)?;\n        match value {\n            serde_json::Value::Null =\u003e Ok(None),\n            serde_json::Value::Number(n) =\u003e {\n                if let Some(v) = n.as_u64() {\n                    T::deserialize(serde_json::Value::Number(serde_json::Number::from(v)))\n                        .map(Some)\n                        .map_err(|_| serde::de::Error::custom(\"Failed to deserialize number\"))\n                } else if let Some(v) = n.as_f64() {\n                    T::deserialize(serde_json::Value::Number(serde_json::Number::from_f64(v).unwrap()))\n                        .map(Some)\n                        .map_err(|_| serde::de::Error::custom(\"Failed to deserialize number\"))\n                } else {\n                    Err(serde::de::Error::custom(\"Invalid number format\"))\n                }\n            }\n            serde_json::Value::String(s) =\u003e {\n                if s.is_empty() {\n                    Ok(None)\n                } else {\n                    s.parse::\u003cT\u003e()\n                        .map(Some)\n                        .map_err(serde::de::Error::custom)\n                }\n            }\n            _ =\u003e Err(serde::de::Error::custom(\"Expected number, string, or null\")),\n        }\n    }\n\n    /// Deserialize DateTime from Unix timestamp\n    pub fn datetime_from_timestamp\u003c'de, D\u003e(deserializer: D) -\u003e std::result::Result\u003cDateTime\u003cUtc\u003e, D::Error\u003e\n    where\n        D: Deserializer\u003c'de\u003e,\n    {\n        let timestamp = number_from_string::\u003cu64, D\u003e(deserializer)?;\n        DateTime::from_timestamp(timestamp as i64, 0)\n            .ok_or_else(|| serde::de::Error::custom(\"Invalid timestamp\"))\n    }\n\n    /// Deserialize optional DateTime from Unix timestamp\n    pub fn optional_datetime_from_timestamp\u003c'de, D\u003e(\n        deserializer: D,\n    ) -\u003e std::result::Result\u003cOption\u003cDateTime\u003cUtc\u003e\u003e, D::Error\u003e\n    where\n        D: Deserializer\u003c'de\u003e,\n    {\n        match optional_number_from_string::\u003cu64, D\u003e(deserializer)? {\n            Some(timestamp) =\u003e DateTime::from_timestamp(timestamp as i64, 0)\n                .map(Some)\n                .ok_or_else(|| serde::de::Error::custom(\"Invalid timestamp\")),\n            None =\u003e Ok(None),\n        }\n    }\n}\n\n/// Raw API response types for efficient parsing\n#[derive(Debug, Deserialize)]\npub struct RawOrderBookResponse {\n    pub market: String,\n    pub asset_id: String,\n    pub hash: String,\n    #[serde(deserialize_with = \"deserializers::number_from_string\")]\n    pub timestamp: u64,\n    pub bids: Vec\u003cRawBookLevel\u003e,\n    pub asks: Vec\u003cRawBookLevel\u003e,\n}\n\n#[derive(Debug, Deserialize)]\npub struct RawBookLevel {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct RawOrderResponse {\n    pub id: String,\n    pub status: String,\n    pub market: String,\n    pub asset_id: String,\n    pub maker_address: String,\n    pub owner: String,\n    pub outcome: String,\n    #[serde(rename = \"type\")]\n    pub order_type: OrderType,\n    pub side: Side,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub original_size: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size_matched: Decimal,\n    #[serde(deserialize_with = \"deserializers::number_from_string\")]\n    pub expiration: u64,\n    #[serde(deserialize_with = \"deserializers::number_from_string\")]\n    pub created_at: u64,\n}\n\n#[derive(Debug, Deserialize)]\npub struct RawTradeResponse {\n    pub id: String,\n    pub market: String,\n    pub asset_id: String,\n    pub side: Side,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size: Decimal,\n    pub maker_address: String,\n    pub taker_address: String,\n    #[serde(deserialize_with = \"deserializers::number_from_string\")]\n    pub timestamp: u64,\n}\n\n#[derive(Debug, Deserialize)]\npub struct RawMarketResponse {\n    pub condition_id: String,\n    pub tokens: [RawToken; 2],\n    pub active: bool,\n    pub closed: bool,\n    pub question: String,\n    pub description: String,\n    pub category: Option\u003cString\u003e,\n    pub end_date_iso: Option\u003cString\u003e,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub minimum_order_size: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub minimum_tick_size: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct RawToken {\n    pub token_id: String,\n    pub outcome: String,\n}\n\n/// Decoder implementations for converting raw responses to client types\npub trait Decoder\u003cT\u003e {\n    fn decode(\u0026self) -\u003e Result\u003cT\u003e;\n}\n\nimpl Decoder\u003cOrderBook\u003e for RawOrderBookResponse {\n    fn decode(\u0026self) -\u003e Result\u003cOrderBook\u003e {\n        let timestamp = chrono::DateTime::from_timestamp(self.timestamp as i64, 0)\n            .ok_or_else(|| PolyfillError::parse(\"Invalid timestamp\".to_string(), None))?;\n\n        let bids = self\n            .bids\n            .iter()\n            .map(|level| BookLevel {\n                price: level.price,\n                size: level.size,\n            })\n            .collect();\n\n        let asks = self\n            .asks\n            .iter()\n            .map(|level| BookLevel {\n                price: level.price,\n                size: level.size,\n            })\n            .collect();\n\n        Ok(OrderBook {\n            token_id: self.asset_id.clone(),\n            timestamp,\n            bids,\n            asks,\n            sequence: 0, // TODO: Get from response if available\n        })\n    }\n}\n\nimpl Decoder\u003cOrder\u003e for RawOrderResponse {\n    fn decode(\u0026self) -\u003e Result\u003cOrder\u003e {\n        let status = match self.status.as_str() {\n            \"LIVE\" =\u003e OrderStatus::Live,\n            \"CANCELLED\" =\u003e OrderStatus::Cancelled,\n            \"FILLED\" =\u003e OrderStatus::Filled,\n            \"PARTIAL\" =\u003e OrderStatus::Partial,\n            \"EXPIRED\" =\u003e OrderStatus::Expired,\n            _ =\u003e return Err(PolyfillError::parse(\n                format!(\"Unknown order status: {}\", self.status),\n                None,\n            )),\n        };\n\n        let created_at = chrono::DateTime::from_timestamp(self.created_at as i64, 0)\n            .ok_or_else(|| PolyfillError::parse(\"Invalid created_at timestamp\".to_string(), None))?;\n\n        let expiration = if self.expiration \u003e 0 {\n            Some(chrono::DateTime::from_timestamp(self.expiration as i64, 0)\n                .ok_or_else(|| PolyfillError::parse(\"Invalid expiration timestamp\".to_string(), None))?)\n        } else {\n            None\n        };\n\n        Ok(Order {\n            id: self.id.clone(),\n            token_id: self.asset_id.clone(),\n            side: self.side,\n            price: self.price,\n            original_size: self.original_size,\n            filled_size: self.size_matched,\n            remaining_size: self.original_size - self.size_matched,\n            status,\n            order_type: self.order_type,\n            created_at,\n            updated_at: created_at, // Use same as created for now\n            expiration,\n            client_id: None,\n        })\n    }\n}\n\nimpl Decoder\u003cFillEvent\u003e for RawTradeResponse {\n    fn decode(\u0026self) -\u003e Result\u003cFillEvent\u003e {\n        let timestamp = chrono::DateTime::from_timestamp(self.timestamp as i64, 0)\n            .ok_or_else(|| PolyfillError::parse(\"Invalid trade timestamp\".to_string(), None))?;\n\n        let maker_address = Address::from_str(\u0026self.maker_address)\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid maker address: {}\", e), None))?;\n\n        let taker_address = Address::from_str(\u0026self.taker_address)\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid taker address: {}\", e), None))?;\n\n        Ok(FillEvent {\n            id: self.id.clone(),\n            order_id: \"\".to_string(), // TODO: Get from response if available\n            token_id: self.asset_id.clone(),\n            side: self.side,\n            price: self.price,\n            size: self.size,\n            timestamp,\n            maker_address,\n            taker_address,\n            fee: Decimal::ZERO, // TODO: Calculate or get from response\n        })\n    }\n}\n\nimpl Decoder\u003cMarket\u003e for RawMarketResponse {\n    fn decode(\u0026self) -\u003e Result\u003cMarket\u003e {\n        let tokens = [\n            Token {\n                token_id: self.tokens[0].token_id.clone(),\n                outcome: self.tokens[0].outcome.clone(),\n            },\n            Token {\n                token_id: self.tokens[1].token_id.clone(),\n                outcome: self.tokens[1].outcome.clone(),\n            },\n        ];\n\n        Ok(Market {\n            condition_id: self.condition_id.clone(),\n            tokens,\n            rewards: crate::types::Rewards {\n                rates: None,\n                min_size: Decimal::ZERO,\n                max_spread: Decimal::ONE,\n                event_start_date: None,\n                event_end_date: None,\n                in_game_multiplier: None,\n                reward_epoch: None,\n            },\n            min_incentive_size: None,\n            max_incentive_spread: None,\n            active: self.active,\n            closed: self.closed,\n            question_id: self.condition_id.clone(), // Use condition_id as fallback\n            minimum_order_size: self.minimum_order_size,\n            minimum_tick_size: self.minimum_tick_size,\n            description: self.description.clone(),\n            category: self.category.clone(),\n            end_date_iso: self.end_date_iso.clone(),\n            game_start_time: None,\n            question: self.question.clone(),\n            market_slug: format!(\"market-{}\", self.condition_id), // Generate a slug\n            seconds_delay: Decimal::ZERO,\n            icon: String::new(),\n            fpmm: String::new(),\n        })\n    }\n}\n\n/// WebSocket message parsing\npub fn parse_stream_message(raw: \u0026str) -\u003e Result\u003cStreamMessage\u003e {\n    let value: Value = serde_json::from_str(raw)?;\n    \n    let msg_type = value[\"type\"]\n        .as_str()\n        .ok_or_else(|| PolyfillError::parse(\"Missing message type\".to_string(), None))?;\n\n    match msg_type {\n        \"book_update\" =\u003e {\n            let data = value[\"data\"].clone();\n            let delta: OrderDelta = serde_json::from_value(data)?;\n            Ok(StreamMessage::BookUpdate { data: delta })\n        }\n        \"trade\" =\u003e {\n            let data = value[\"data\"].clone();\n            let raw_trade: RawTradeResponse = serde_json::from_value(data)?;\n            let fill = raw_trade.decode()?;\n            Ok(StreamMessage::Trade { data: fill })\n        }\n        \"order_update\" =\u003e {\n            let data = value[\"data\"].clone();\n            let raw_order: RawOrderResponse = serde_json::from_value(data)?;\n            let order = raw_order.decode()?;\n            Ok(StreamMessage::OrderUpdate { data: order })\n        }\n        \"heartbeat\" =\u003e {\n            let timestamp = value[\"timestamp\"]\n                .as_str()\n                .and_then(|s| chrono::DateTime::parse_from_rfc3339(s).ok())\n                .map(|dt| dt.with_timezone(\u0026Utc))\n                .unwrap_or_else(|| Utc::now());\n            Ok(StreamMessage::Heartbeat { timestamp })\n        }\n        _ =\u003e Err(PolyfillError::parse(\n            format!(\"Unknown message type: {}\", msg_type),\n            None,\n        )),\n    }\n}\n\n/// Batch parsing utilities for high-throughput scenarios\npub struct BatchDecoder {\n    buffer: Vec\u003cu8\u003e,\n}\n\nimpl BatchDecoder {\n    pub fn new() -\u003e Self {\n        Self {\n            buffer: Vec::with_capacity(8192),\n        }\n    }\n\n    /// Parse multiple JSON objects from a byte stream\n    pub fn parse_json_stream\u003cT\u003e(\u0026mut self, data: \u0026[u8]) -\u003e Result\u003cVec\u003cT\u003e\u003e\n    where\n        T: for\u003c'de\u003e serde::Deserialize\u003c'de\u003e,\n    {\n        self.buffer.extend_from_slice(data);\n        let mut results = Vec::new();\n        let mut start = 0;\n\n        while let Some(end) = self.find_json_boundary(start) {\n            let json_slice = \u0026self.buffer[start..end];\n            if let Ok(obj) = serde_json::from_slice::\u003cT\u003e(json_slice) {\n                results.push(obj);\n            }\n            start = end;\n        }\n\n        // Keep remaining incomplete data\n        if start \u003e 0 {\n            self.buffer.drain(0..start);\n        }\n\n        Ok(results)\n    }\n\n    /// Find the end of a JSON object in the buffer\n    fn find_json_boundary(\u0026self, start: usize) -\u003e Option\u003cusize\u003e {\n        let mut depth = 0;\n        let mut in_string = false;\n        let mut escaped = false;\n\n        for (i, \u0026byte) in self.buffer[start..].iter().enumerate() {\n            if escaped {\n                escaped = false;\n                continue;\n            }\n\n            match byte {\n                b'\\\\' if in_string =\u003e escaped = true,\n                b'\"' =\u003e in_string = !in_string,\n                b'{' if !in_string =\u003e depth += 1,\n                b'}' if !in_string =\u003e {\n                    depth -= 1;\n                    if depth == 0 {\n                        return Some(start + i + 1);\n                    }\n                }\n                _ =\u003e {}\n            }\n        }\n\n        None\n    }\n}\n\nimpl Default for BatchDecoder {\n    fn default() -\u003e Self {\n        Self::new()\n    }\n}\n\n/// Optimized parsers for common data types\npub mod fast_parse {\n    use super::*;\n\n    /// Fast decimal parsing for prices\n    #[inline]\n    pub fn parse_decimal(s: \u0026str) -\u003e Result\u003cDecimal\u003e {\n        Decimal::from_str(s)\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid decimal: {}\", e), None))\n    }\n\n    /// Fast address parsing\n    #[inline]\n    pub fn parse_address(s: \u0026str) -\u003e Result\u003cAddress\u003e {\n        Address::from_str(s)\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid address: {}\", e), None))\n    }\n\n    /// Fast U256 parsing\n    #[inline]\n    pub fn parse_u256(s: \u0026str) -\u003e Result\u003cU256\u003e {\n        U256::from_str_radix(s, 10)\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid U256: {}\", e), None))\n    }\n\n    /// Parse Side enum\n    #[inline]\n    pub fn parse_side(s: \u0026str) -\u003e Result\u003cSide\u003e {\n        match s.to_uppercase().as_str() {\n            \"BUY\" =\u003e Ok(Side::BUY),\n            \"SELL\" =\u003e Ok(Side::SELL),\n            _ =\u003e Err(PolyfillError::parse(format!(\"Invalid side: {}\", s), None)),\n        }\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_parse_decimal() {\n        let result = fast_parse::parse_decimal(\"123.456\").unwrap();\n        assert_eq!(result, Decimal::from_str(\"123.456\").unwrap());\n    }\n\n    #[test]\n    fn test_parse_side() {\n        assert_eq!(fast_parse::parse_side(\"BUY\").unwrap(), Side::BUY);\n        assert_eq!(fast_parse::parse_side(\"sell\").unwrap(), Side::SELL);\n        assert!(fast_parse::parse_side(\"invalid\").is_err());\n    }\n\n    #[test]\n    fn test_batch_decoder() {\n        let mut decoder = BatchDecoder::new();\n        let data = r#\"{\"test\":1}{\"test\":2}\"#.as_bytes();\n        \n        let results: Vec\u003cserde_json::Value\u003e = decoder.parse_json_stream(data).unwrap();\n        assert_eq!(results.len(), 2);\n    }\n} 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WebSocket/streaming errors\n    #[error(\"Stream error: {message}\")]\n    Stream { \n        message: String,\n        kind: StreamErrorKind,\n    },\n\n    /// Validation errors\n    #[error(\"Validation error: {message}\")]\n    Validation { \n        message: String,\n        field: Option\u003cString\u003e,\n    },\n\n    /// Internal errors (bugs)\n    #[error(\"Internal error: {message}\")]\n    Internal { \n        message: String,\n        #[source]\n        source: Option\u003cBox\u003cdyn std::error::Error + Send + Sync\u003e\u003e,\n    },\n}\n\n/// Authentication error subcategories\n#[derive(Debug, Clone, PartialEq)]\npub enum AuthErrorKind {\n    InvalidCredentials,\n    ExpiredCredentials,\n    InsufficientPermissions,\n    SignatureError,\n    NonceError,\n}\n\n/// Order error subcategories\n#[derive(Debug, Clone, PartialEq)]\npub enum OrderErrorKind {\n    InvalidPrice,\n    InvalidSize,\n    InsufficientBalance,\n    MarketClosed,\n    DuplicateOrder,\n    OrderNotFound,\n    CancellationFailed,\n    ExecutionFailed,\n    SizeConstraint,\n    PriceConstraint,\n}\n\n/// Market data error subcategories\n#[derive(Debug, Clone, PartialEq)]\npub enum MarketDataErrorKind {\n    TokenNotFound,\n    MarketNotFound,\n    StaleData,\n    IncompleteData,\n    BookUnavailable,\n}\n\n/// Streaming error subcategories\n#[derive(Debug, Clone, PartialEq)]\npub enum StreamErrorKind {\n    ConnectionFailed,\n    ConnectionLost,\n    SubscriptionFailed,\n    MessageCorrupted,\n    Reconnecting,\n}\n\nimpl PolyfillError {\n    /// Check if this error is retryable\n    pub fn is_retryable(\u0026self) -\u003e bool {\n        match self {\n            PolyfillError::Network { .. } =\u003e true,\n            PolyfillError::Api { status, .. } =\u003e {\n                // 5xx errors are typically retryable\n                *status \u003e= 500 \u0026\u0026 *status \u003c 600\n            },\n            PolyfillError::Timeout { .. } =\u003e true,\n            PolyfillError::RateLimit { .. } =\u003e true,\n            PolyfillError::Stream { kind, .. } =\u003e {\n                matches!(kind, StreamErrorKind::ConnectionLost | StreamErrorKind::Reconnecting)\n            },\n            _ =\u003e false,\n        }\n    }\n\n    /// Get suggested retry delay\n    pub fn retry_delay(\u0026self) -\u003e Option\u003cDuration\u003e {\n        match self {\n            PolyfillError::Network { .. } =\u003e Some(Duration::from_millis(100)),\n            PolyfillError::Api { status, .. } =\u003e {\n                if *status \u003e= 500 {\n                    Some(Duration::from_millis(500))\n                } else {\n                    None\n                }\n            },\n            PolyfillError::Timeout { .. } =\u003e Some(Duration::from_millis(50)),\n            PolyfillError::RateLimit { retry_after, .. } =\u003e {\n                retry_after.or(Some(Duration::from_secs(1)))\n            },\n            PolyfillError::Stream { .. } 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=\u003e \"market_data\",\n            PolyfillError::Config { .. } =\u003e \"config\",\n            PolyfillError::Parse { .. } =\u003e \"parse\",\n            PolyfillError::Timeout { .. } =\u003e \"timeout\",\n            PolyfillError::RateLimit { .. } =\u003e \"rate_limit\",\n            PolyfillError::Stream { .. } =\u003e \"stream\",\n            PolyfillError::Validation { .. } =\u003e \"validation\",\n            PolyfillError::Internal { .. } =\u003e \"internal\",\n        }\n    }\n}\n\n// Convenience constructors\nimpl PolyfillError {\n    pub fn network\u003cE: std::error::Error + Send + Sync + 'static\u003e(\n        message: impl Into\u003cString\u003e,\n        source: E,\n    ) -\u003e Self {\n        Self::Network {\n            message: message.into(),\n            source: Some(Box::new(source)),\n        }\n    }\n\n    pub fn api(status: u16, message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Api {\n            status,\n            message: message.into(),\n            error_code: None,\n        }\n    }\n\n    pub fn auth(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Auth {\n            message: message.into(),\n            kind: AuthErrorKind::SignatureError,\n        }\n    }\n\n    pub fn crypto(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Auth {\n            message: message.into(),\n            kind: AuthErrorKind::SignatureError,\n        }\n    }\n\n    pub fn order(message: impl Into\u003cString\u003e, kind: OrderErrorKind) -\u003e Self {\n        Self::Order {\n            message: message.into(),\n            kind,\n        }\n    }\n\n    pub fn market_data(message: impl Into\u003cString\u003e, kind: MarketDataErrorKind) -\u003e Self {\n        Self::MarketData {\n            message: message.into(),\n            kind,\n        }\n    }\n\n    pub fn config(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Config {\n            message: message.into(),\n        }\n    }\n\n    pub fn parse(message: impl Into\u003cString\u003e, source: Option\u003cBox\u003cdyn std::error::Error + Send + Sync\u003e\u003e) -\u003e Self {\n        Self::Parse {\n            message: message.into(),\n            source,\n        }\n    }\n\n    pub fn timeout(duration: Duration, operation: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Timeout {\n            duration,\n            operation: operation.into(),\n        }\n    }\n\n    pub fn rate_limit(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::RateLimit {\n            message: message.into(),\n            retry_after: None,\n        }\n    }\n\n    pub fn stream(message: impl Into\u003cString\u003e, kind: StreamErrorKind) -\u003e Self {\n        Self::Stream {\n            message: message.into(),\n            kind,\n        }\n    }\n\n    pub fn validation(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Validation {\n            message: message.into(),\n            field: None,\n        }\n    }\n\n    pub fn internal\u003cE: std::error::Error + Send + Sync + 'static\u003e(\n        message: impl Into\u003cString\u003e,\n        source: E,\n    ) -\u003e Self {\n        Self::Internal {\n            message: message.into(),\n            source: Some(Box::new(source)),\n        }\n    }\n\n    pub fn internal_simple(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Internal {\n            message: message.into(),\n            source: None,\n        }\n    }\n}\n\n// Implement From for common external error types\nimpl From\u003creqwest::Error\u003e for PolyfillError {\n    fn from(err: reqwest::Error) -\u003e Self {\n        if err.is_timeout() {\n            PolyfillError::Timeout {\n                duration: Duration::from_secs(30), // default timeout\n                operation: \"HTTP request\".to_string(),\n            }\n        } else if err.is_connect() || err.is_request() {\n            PolyfillError::network(\"HTTP request failed\", err)\n        } else {\n            PolyfillError::internal(\"Unexpected reqwest error\", err)\n        }\n    }\n}\n\nimpl From\u003cserde_json::Error\u003e for PolyfillError {\n    fn from(err: serde_json::Error) -\u003e Self {\n        PolyfillError::Parse {\n            message: format!(\"JSON parsing failed: {}\", err),\n            source: Some(Box::new(err)),\n        }\n    }\n}\n\nimpl From\u003curl::ParseError\u003e for PolyfillError {\n    fn from(err: url::ParseError) -\u003e Self {\n        PolyfillError::config(format!(\"Invalid URL: {}\", err))\n    }\n}\n\n#[cfg(feature = \"stream\")]\nimpl From\u003ctokio_tungstenite::tungstenite::Error\u003e for PolyfillError {\n    fn from(err: tokio_tungstenite::tungstenite::Error) -\u003e Self {\n        use tokio_tungstenite::tungstenite::Error as WsError;\n        \n        let kind = match \u0026err {\n            WsError::ConnectionClosed | WsError::AlreadyClosed =\u003e StreamErrorKind::ConnectionLost,\n            WsError::Io(_) =\u003e StreamErrorKind::ConnectionFailed,\n            WsError::Protocol(_) =\u003e StreamErrorKind::MessageCorrupted,\n            _ =\u003e StreamErrorKind::ConnectionFailed,\n        };\n\n        PolyfillError::stream(format!(\"WebSocket error: {}\", err), kind)\n    }\n}\n\n// Manual Clone implementation since Box\u003cdyn Error\u003e doesn't implement Clone\nimpl Clone for PolyfillError {\n    fn clone(\u0026self) -\u003e Self {\n        match self {\n            PolyfillError::Network { message, source: _ } =\u003e {\n                PolyfillError::Network { \n                    message: message.clone(), \n                    source: None \n                }\n            }\n            PolyfillError::Api { status, message, error_code } =\u003e {\n                PolyfillError::Api { \n                    status: *status, \n                    message: message.clone(), \n                    error_code: error_code.clone() \n                }\n            }\n            PolyfillError::Auth { message, kind } =\u003e {\n                PolyfillError::Auth { \n                    message: message.clone(), \n                    kind: kind.clone() \n                }\n            }\n            PolyfillError::Order { message, kind } =\u003e {\n                PolyfillError::Order { \n                    message: message.clone(), \n                    kind: kind.clone() \n                }\n            }\n            PolyfillError::MarketData { message, kind } =\u003e {\n                PolyfillError::MarketData { \n                    message: message.clone(), \n                    kind: kind.clone() \n                }\n            }\n            PolyfillError::Config { message } =\u003e {\n                PolyfillError::Config { \n                    message: message.clone() \n                }\n            }\n            PolyfillError::Parse { message, source: _ } =\u003e {\n                PolyfillError::Parse { \n                    message: message.clone(), \n                    source: None \n                }\n            }\n            PolyfillError::Timeout { duration, operation } =\u003e {\n                PolyfillError::Timeout { \n                    duration: *duration, \n                    operation: operation.clone() \n                }\n            }\n            PolyfillError::RateLimit { message, retry_after } =\u003e {\n                PolyfillError::RateLimit { \n                    message: message.clone(), \n                    retry_after: *retry_after \n                }\n            }\n            PolyfillError::Stream { message, kind } =\u003e {\n                PolyfillError::Stream { \n                    message: message.clone(), \n                    kind: kind.clone() \n                }\n            }\n            PolyfillError::Validation { message, field } =\u003e {\n                PolyfillError::Validation { \n                    message: message.clone(), \n                    field: field.clone() \n                }\n            }\n            PolyfillError::Internal { message, source: _ } =\u003e {\n                PolyfillError::Internal { \n                    message: message.clone(), \n                    source: None \n                }\n            }\n        }\n    }\n}\n\n/// Result type alias for convenience\npub type Result\u003cT\u003e = std::result::Result\u003cT, PolyfillError\u003e; 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Trade execution and fill handling for Polymarket client\n//!\n//! This module provides high-performance trade execution logic and\n//! fill event processing for latency-sensitive trading environments.\n\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::*;\nuse crate::utils::math;\nuse alloy_primitives::Address;\nuse chrono::{DateTime, Utc};\nuse rust_decimal::Decimal;\nuse std::collections::HashMap;\nuse tracing::{debug, info, warn};\n\n/// Fill execution result\n#[derive(Debug, Clone)]\npub struct FillResult {\n    pub order_id: String,\n    pub fills: Vec\u003cFillEvent\u003e,\n    pub total_size: Decimal,\n    pub average_price: Decimal,\n    pub total_cost: Decimal,\n    pub fees: Decimal,\n    pub status: FillStatus,\n    pub timestamp: DateTime\u003cUtc\u003e,\n}\n\n/// Fill execution status\n#[derive(Debug, Clone, PartialEq)]\npub enum FillStatus {\n    /// Order was fully filled\n    Filled,\n    /// Order was partially filled\n    Partial,\n    /// Order was not filled (insufficient liquidity)\n    Unfilled,\n    /// Order was rejected\n    Rejected,\n}\n\n/// Fill execution engine\n#[derive(Debug)]\npub struct FillEngine {\n    /// Minimum fill size for market orders\n    min_fill_size: Decimal,\n    /// Maximum slippage tolerance (as percentage)\n    max_slippage_pct: Decimal,\n    /// Fee rate in basis points\n    fee_rate_bps: u32,\n    /// Track fills by order ID\n    fills: HashMap\u003cString, Vec\u003cFillEvent\u003e\u003e,\n}\n\nimpl FillEngine {\n    /// Create a new fill engine\n    pub fn new(min_fill_size: Decimal, max_slippage_pct: Decimal, fee_rate_bps: u32) -\u003e Self {\n        Self {\n            min_fill_size,\n            max_slippage_pct,\n            fee_rate_bps,\n            fills: HashMap::new(),\n        }\n    }\n\n    /// Execute a market order against an order book\n    pub fn execute_market_order(\n        \u0026mut self,\n        order: \u0026MarketOrderRequest,\n        book: \u0026crate::book::OrderBook,\n    ) -\u003e Result\u003cFillResult\u003e {\n        let start_time = Utc::now();\n        \n        // Validate order\n        self.validate_market_order(order)?;\n\n        // Get available liquidity\n        let levels = match order.side {\n            Side::BUY =\u003e book.asks(None),\n            Side::SELL =\u003e book.bids(None),\n        };\n\n        if levels.is_empty() {\n            return Ok(FillResult {\n                order_id: order.client_id.clone().unwrap_or_else(|| \"market_order\".to_string()),\n                fills: Vec::new(),\n                total_size: Decimal::ZERO,\n                average_price: Decimal::ZERO,\n                total_cost: Decimal::ZERO,\n                fees: Decimal::ZERO,\n                status: FillStatus::Unfilled,\n                timestamp: start_time,\n            });\n        }\n\n        // Execute fills\n        let mut fills = Vec::new();\n        let mut remaining_size = order.amount;\n        let mut total_cost = Decimal::ZERO;\n        let mut total_size = Decimal::ZERO;\n\n        for level in levels {\n            if remaining_size.is_zero() {\n                break;\n            }\n\n            let fill_size = std::cmp::min(remaining_size, level.size);\n            let fill_cost = fill_size * level.price;\n            \n            // Calculate fee\n            let fee = self.calculate_fee(fill_cost);\n            \n            let fill = FillEvent {\n                id: uuid::Uuid::new_v4().to_string(),\n                order_id: order.client_id.clone().unwrap_or_else(|| \"market_order\".to_string()),\n                token_id: order.token_id.clone(),\n                side: order.side,\n                price: level.price,\n                size: fill_size,\n                timestamp: Utc::now(),\n                maker_address: Address::ZERO, // TODO: Get from level\n                taker_address: Address::ZERO, // TODO: Get from order\n                fee,\n            };\n\n            fills.push(fill);\n            total_cost += fill_cost;\n            total_size += fill_size;\n            remaining_size -= fill_size;\n        }\n\n        // Check slippage\n        if let Some(slippage) = self.calculate_slippage(order, \u0026fills) {\n            if slippage \u003e self.max_slippage_pct {\n                warn!(\n                    \"Slippage {}% exceeds maximum {}%\",\n                    slippage, self.max_slippage_pct\n                );\n                return Ok(FillResult {\n                    order_id: order.client_id.clone().unwrap_or_else(|| \"market_order\".to_string()),\n                    fills: Vec::new(),\n                    total_size: Decimal::ZERO,\n                    average_price: Decimal::ZERO,\n                    total_cost: Decimal::ZERO,\n                    fees: Decimal::ZERO,\n                    status: FillStatus::Rejected,\n                    timestamp: start_time,\n                });\n            }\n        }\n\n        // Determine status\n        let status = if remaining_size.is_zero() {\n            FillStatus::Filled\n        } else if total_size \u003e= self.min_fill_size {\n            FillStatus::Partial\n        } else {\n            FillStatus::Unfilled\n        };\n\n        let average_price = if total_size.is_zero() {\n            Decimal::ZERO\n        } else {\n            total_cost / total_size\n        };\n\n        let total_fees: Decimal = fills.iter().map(|f| f.fee).sum();\n\n        let result = FillResult {\n            order_id: order.client_id.clone().unwrap_or_else(|| \"market_order\".to_string()),\n            fills,\n            total_size,\n            average_price,\n            total_cost,\n            fees: total_fees,\n            status,\n            timestamp: start_time,\n        };\n\n        // Store fills for tracking\n        if !result.fills.is_empty() {\n            self.fills.insert(result.order_id.clone(), result.fills.clone());\n        }\n\n        info!(\n            \"Market order executed: {} {} @ {} (avg: {})\",\n            result.total_size,\n            order.side.as_str(),\n            order.amount,\n            result.average_price\n        );\n\n        Ok(result)\n    }\n\n    /// Execute a limit order (simulation)\n    pub fn execute_limit_order(\n        \u0026mut self,\n        order: \u0026OrderRequest,\n        book: \u0026crate::book::OrderBook,\n    ) -\u003e Result\u003cFillResult\u003e {\n        let start_time = Utc::now();\n\n        // Validate order\n        self.validate_limit_order(order)?;\n\n        // Check if order can be filled immediately\n        let can_fill = match order.side {\n            Side::BUY =\u003e {\n                if let Some(best_ask) = book.best_ask() {\n                    order.price \u003e= best_ask.price\n                } else {\n                    false\n                }\n            }\n            Side::SELL =\u003e {\n                if let Some(best_bid) = book.best_bid() {\n                    order.price \u003c= best_bid.price\n                } else {\n                    false\n                }\n            }\n        };\n\n        if !can_fill {\n            return Ok(FillResult {\n                order_id: order.client_id.clone().unwrap_or_else(|| \"limit_order\".to_string()),\n                fills: Vec::new(),\n                total_size: Decimal::ZERO,\n                average_price: Decimal::ZERO,\n                total_cost: Decimal::ZERO,\n                fees: Decimal::ZERO,\n                status: FillStatus::Unfilled,\n                timestamp: start_time,\n            });\n        }\n\n        // Simulate immediate fill\n        let fill = FillEvent {\n            id: uuid::Uuid::new_v4().to_string(),\n            order_id: order.client_id.clone().unwrap_or_else(|| \"limit_order\".to_string()),\n            token_id: order.token_id.clone(),\n            side: order.side,\n            price: order.price,\n            size: order.size,\n            timestamp: Utc::now(),\n            maker_address: Address::ZERO,\n            taker_address: Address::ZERO,\n            fee: self.calculate_fee(order.price * order.size),\n        };\n\n        let result = FillResult {\n            order_id: order.client_id.clone().unwrap_or_else(|| \"limit_order\".to_string()),\n            fills: vec![fill],\n            total_size: order.size,\n            average_price: order.price,\n            total_cost: order.price * order.size,\n            fees: self.calculate_fee(order.price * order.size),\n            status: FillStatus::Filled,\n            timestamp: start_time,\n        };\n\n        // Store fills for tracking\n        self.fills.insert(result.order_id.clone(), result.fills.clone());\n\n        info!(\n            \"Limit order executed: {} {} @ {}\",\n            result.total_size,\n            order.side.as_str(),\n            result.average_price\n        );\n\n        Ok(result)\n    }\n\n    /// Calculate slippage for a market order\n    fn calculate_slippage(\u0026self, order: \u0026MarketOrderRequest, fills: \u0026[FillEvent]) -\u003e Option\u003cDecimal\u003e {\n        if fills.is_empty() {\n            return None;\n        }\n\n        let total_cost: Decimal = fills.iter().map(|f| f.price * f.size).sum();\n        let total_size: Decimal = fills.iter().map(|f| f.size).sum();\n        let average_price = total_cost / total_size;\n\n        // Get reference price (best bid/ask)\n        let reference_price = match order.side {\n            Side::BUY =\u003e fills.first()?.price, // Best ask\n            Side::SELL =\u003e fills.first()?.price, // Best bid\n        };\n\n        Some(math::calculate_slippage(reference_price, average_price, order.side))\n    }\n\n    /// Calculate fee for a trade\n    fn calculate_fee(\u0026self, notional: Decimal) -\u003e Decimal {\n        notional * Decimal::from(self.fee_rate_bps) / Decimal::from(10_000)\n    }\n\n    /// Validate market order parameters\n    fn validate_market_order(\u0026self, order: \u0026MarketOrderRequest) -\u003e Result\u003c()\u003e {\n        if order.amount.is_zero() {\n            return Err(PolyfillError::order(\n                \"Market order amount cannot be zero\",\n                crate::errors::OrderErrorKind::InvalidSize,\n            ));\n        }\n\n        if order.amount \u003c self.min_fill_size {\n            return Err(PolyfillError::order(\n                format!(\"Order size {} below minimum {}\", order.amount, self.min_fill_size),\n                crate::errors::OrderErrorKind::SizeConstraint,\n            ));\n        }\n\n        Ok(())\n    }\n\n    /// Validate limit order parameters\n    fn validate_limit_order(\u0026self, order: \u0026OrderRequest) -\u003e Result\u003c()\u003e {\n        if order.size.is_zero() {\n            return Err(PolyfillError::order(\n                \"Limit order size cannot be zero\",\n                crate::errors::OrderErrorKind::InvalidSize,\n            ));\n        }\n\n        if order.price.is_zero() {\n            return Err(PolyfillError::order(\n                \"Limit order price cannot be zero\",\n                crate::errors::OrderErrorKind::InvalidPrice,\n            ));\n        }\n\n        if order.size \u003c self.min_fill_size {\n            return Err(PolyfillError::order(\n                format!(\"Order size {} below minimum {}\", order.size, self.min_fill_size),\n                crate::errors::OrderErrorKind::SizeConstraint,\n            ));\n        }\n\n        Ok(())\n    }\n\n    /// Get fills for an order\n    pub fn get_fills(\u0026self, order_id: \u0026str) -\u003e Option\u003c\u0026[FillEvent]\u003e {\n        self.fills.get(order_id).map(|f| f.as_slice())\n    }\n\n    /// Get all fills\n    pub fn get_all_fills(\u0026self) -\u003e Vec\u003c\u0026FillEvent\u003e {\n        self.fills.values().flatten().collect()\n    }\n\n    /// Clear fills for an order\n    pub fn clear_fills(\u0026mut self, order_id: \u0026str) {\n        self.fills.remove(order_id);\n    }\n\n    /// Get fill statistics\n    pub fn get_stats(\u0026self) -\u003e FillStats {\n        let total_fills = self.fills.values().flatten().count();\n        let total_volume: Decimal = self.fills.values().flatten().map(|f| f.size).sum();\n        let total_fees: Decimal = self.fills.values().flatten().map(|f| f.fee).sum();\n\n        FillStats {\n            total_orders: self.fills.len(),\n            total_fills,\n            total_volume,\n            total_fees,\n        }\n    }\n}\n\n/// Fill statistics\n#[derive(Debug, Clone)]\npub struct FillStats {\n    pub total_orders: usize,\n    pub total_fills: usize,\n    pub total_volume: Decimal,\n    pub total_fees: Decimal,\n}\n\n/// Fill event processor for real-time updates\n#[derive(Debug)]\npub struct FillProcessor {\n    /// Pending fills by order ID\n    pending_fills: HashMap\u003cString, Vec\u003cFillEvent\u003e\u003e,\n    /// Processed fills\n    processed_fills: Vec\u003cFillEvent\u003e,\n    /// Maximum pending fills to keep in memory\n    max_pending: usize,\n}\n\nimpl FillProcessor {\n    /// Create a new fill processor\n    pub fn new(max_pending: usize) -\u003e Self {\n        Self {\n            pending_fills: HashMap::new(),\n            processed_fills: Vec::new(),\n            max_pending,\n        }\n    }\n\n    /// Process a fill event\n    pub fn process_fill(\u0026mut self, fill: FillEvent) -\u003e Result\u003c()\u003e {\n        // Validate fill\n        self.validate_fill(\u0026fill)?;\n\n        // Add to pending fills\n        self.pending_fills\n            .entry(fill.order_id.clone())\n            .or_insert_with(Vec::new)\n            .push(fill.clone());\n\n        // Move to processed if complete\n        if self.is_order_complete(\u0026fill.order_id) {\n            if let Some(fills) = self.pending_fills.remove(\u0026fill.order_id) {\n                self.processed_fills.extend(fills);\n            }\n        }\n\n        // Cleanup if too many pending\n        if self.pending_fills.len() \u003e self.max_pending {\n            self.cleanup_old_pending();\n        }\n\n        debug!(\"Processed fill: {} {} @ {}\", fill.size, fill.side.as_str(), fill.price);\n\n        Ok(())\n    }\n\n    /// Validate a fill event\n    fn validate_fill(\u0026self, fill: \u0026FillEvent) -\u003e Result\u003c()\u003e {\n        if fill.size.is_zero() {\n            return Err(PolyfillError::order(\n                \"Fill size cannot be zero\",\n                crate::errors::OrderErrorKind::InvalidSize,\n            ));\n        }\n\n        if fill.price.is_zero() {\n            return Err(PolyfillError::order(\n                \"Fill price cannot be zero\",\n                crate::errors::OrderErrorKind::InvalidPrice,\n            ));\n        }\n\n        Ok(())\n    }\n\n    /// Check if an order is complete\n    fn is_order_complete(\u0026self, _order_id: \u0026str) -\u003e bool {\n        // Simplified implementation - in practice you'd check against order book\n        false\n    }\n\n    /// Cleanup old pending fills\n    fn cleanup_old_pending(\u0026mut self) {\n        // Remove oldest pending fills\n        let to_remove = self.pending_fills.len() - self.max_pending;\n        let mut keys: Vec\u003c_\u003e = self.pending_fills.keys().cloned().collect();\n        keys.sort(); // Simple ordering - in practice you'd use timestamps\n\n        for key in keys.iter().take(to_remove) {\n            self.pending_fills.remove(key);\n        }\n    }\n\n    /// Get pending fills for an order\n    pub fn get_pending_fills(\u0026self, order_id: \u0026str) -\u003e Option\u003c\u0026[FillEvent]\u003e {\n        self.pending_fills.get(order_id).map(|f| f.as_slice())\n    }\n\n    /// Get processed fills\n    pub fn get_processed_fills(\u0026self) -\u003e \u0026[FillEvent] {\n        \u0026self.processed_fills\n    }\n\n    /// Get fill statistics\n    pub fn get_stats(\u0026self) -\u003e FillProcessorStats {\n        let total_pending: Decimal = self.pending_fills.values().flatten().map(|f| f.size).sum();\n        let total_processed: Decimal = self.processed_fills.iter().map(|f| f.size).sum();\n\n        FillProcessorStats {\n            pending_orders: self.pending_fills.len(),\n            pending_fills: self.pending_fills.values().flatten().count(),\n            pending_volume: total_pending,\n            processed_fills: self.processed_fills.len(),\n            processed_volume: total_processed,\n        }\n    }\n}\n\n/// Fill processor statistics\n#[derive(Debug, Clone)]\npub struct FillProcessorStats {\n    pub pending_orders: usize,\n    pub pending_fills: usize,\n    pub pending_volume: Decimal,\n    pub processed_fills: usize,\n    pub processed_volume: Decimal,\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n    use rust_decimal_macros::dec;\n\n    #[test]\n    fn test_fill_engine_creation() {\n        let engine = FillEngine::new(dec!(1), dec!(5), 10);\n        assert_eq!(engine.min_fill_size, dec!(1));\n        assert_eq!(engine.max_slippage_pct, dec!(5));\n        assert_eq!(engine.fee_rate_bps, 10);\n    }\n\n    #[test]\n    fn test_market_order_validation() {\n        let engine = FillEngine::new(dec!(1), dec!(5), 10);\n        \n        let valid_order = MarketOrderRequest {\n            token_id: \"test\".to_string(),\n            side: Side::BUY,\n            amount: dec!(100),\n            slippage_tolerance: None,\n            client_id: None,\n        };\n        assert!(engine.validate_market_order(\u0026valid_order).is_ok());\n\n        let invalid_order = MarketOrderRequest {\n            token_id: \"test\".to_string(),\n            side: Side::BUY,\n            amount: dec!(0),\n            slippage_tolerance: None,\n            client_id: None,\n        };\n        assert!(engine.validate_market_order(\u0026invalid_order).is_err());\n    }\n\n    #[test]\n    fn test_fee_calculation() {\n        let engine = FillEngine::new(dec!(1), dec!(5), 10);\n        let fee = engine.calculate_fee(dec!(1000));\n        assert_eq!(fee, dec!(1)); // 10 bps = 0.1% = 1 on 1000\n    }\n\n    #[test]\n    fn test_fill_processor() {\n        let mut processor = FillProcessor::new(100);\n        \n        let fill = FillEvent {\n            id: \"fill1\".to_string(),\n            order_id: \"order1\".to_string(),\n            token_id: \"test\".to_string(),\n            side: Side::BUY,\n            price: dec!(0.5),\n            size: dec!(100),\n            timestamp: Utc::now(),\n            maker_address: Address::ZERO,\n            taker_address: Address::ZERO,\n            fee: dec!(0.1),\n        };\n\n        assert!(processor.process_fill(fill).is_ok());\n        assert_eq!(processor.pending_fills.len(), 1);\n    }\n} 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Polyfill-rs: High-performance Rust client for Polymarket\n//! \n//! # Features\n//! \n//! - **High-performance order book management** with optimized data structures\n//! - **Real-time market data streaming** with WebSocket support\n//! - **Trade execution simulation** with slippage protection\n//! - **Comprehensive error handling** with specific error types\n//! - **Rate limiting and retry logic** for robust API interactions\n//! - **Ethereum integration** with EIP-712 signing support\n//! - **Benchmarking tools** for performance analysis\n//! \n//! # Quick Start\n//! \n//! ```rust,no_run\n//! use polyfill_rs::{ClobClient, OrderArgs, Side};\n//! use rust_decimal::Decimal;\n//! use std::str::FromStr;\n//! \n//! #[tokio::main]\n//! async fn main() -\u003e Result\u003c(), Box\u003cdyn std::error::Error\u003e\u003e {\n//!     // Create client (compatible with polymarket-rs-client)\n//!     let mut client = ClobClient::with_l1_headers(\n//!         \"https://clob.polymarket.com\",\n//!         \"your_private_key\",\n//!         137,\n//!     );\n//! \n//!     // Get API credentials\n//!     let api_creds = client.create_or_derive_api_key(None).await.unwrap();\n//!     client.set_api_creds(api_creds);\n//! \n//!     // Create and post order\n//!     let order_args = OrderArgs::new(\n//!         \"token_id\",\n//!         Decimal::from_str(\"0.75\").unwrap(),\n//!         Decimal::from_str(\"100.0\").unwrap(),\n//!         Side::BUY,\n//!     );\n//! \n//!     let result = client.create_and_post_order(\u0026order_args).await.unwrap();\n//!     println!(\"Order posted: {:?}\", result);\n//! \n//!     Ok(())\n//! }\n//! ```\n//! \n//! # Advanced Usage\n//! \n//! ```rust,no_run\n//! use polyfill_rs::{ClobClient, OrderBookImpl};\n//! use rust_decimal::Decimal;\n//! \n//! #[tokio::main]\n//! async fn main() -\u003e Result\u003c(), Box\u003cdyn std::error::Error\u003e\u003e {\n//!     // Create a basic client\n//!     let client = ClobClient::new(\"https://clob.polymarket.com\");\n//! \n//!     // Get market data\n//!     let markets = client.get_sampling_markets(None).await.unwrap();\n//!     println!(\"Found {} markets\", markets.data.len());\n//! \n//!     // Create an order book for high-performance operations\n//!     let mut book = OrderBookImpl::new(\"token_id\".to_string(), 100); // 100 levels depth\n//!     println!(\"Order book created for token: {}\", book.token_id);\n//! \n//!     Ok(())\n//! }\n//! ```\n\nuse tracing::info;\n\n\n// Global constants\npub const DEFAULT_CHAIN_ID: u64 = 137; // Polygon\npub const DEFAULT_BASE_URL: \u0026str = \"https://clob.polymarket.com\";\npub const DEFAULT_TIMEOUT_SECS: u64 = 30;\npub const DEFAULT_MAX_RETRIES: u32 = 3;\npub const DEFAULT_RATE_LIMIT_RPS: u32 = 100;\n\n// Initialize logging\npub fn init() {\n    tracing_subscriber::fmt::init();\n    info!(\"Polyfill-rs initialized\");\n}\n\n// Re-export main types\npub use crate::types::{\n    ApiCredentials, Balance, BalanceAllowance, BatchMidpointRequest, BatchMidpointResponse,\n    BatchPriceRequest, BatchPriceResponse, ClientConfig, FillEvent, MarketSnapshot, \n    NotificationParams, OpenOrder, OpenOrderParams, Order, OrderBook, OrderDelta, \n    OrderRequest, OrderStatus, OrderType, Side, StreamMessage, TokenPrice, TradeParams,\n    WssAuth, WssSubscription, WssChannelType,\n    // Additional compatibility types\n    ApiKeysResponse, MidpointResponse, PriceResponse, SpreadResponse, TickSizeResponse,\n    NegRiskResponse, BookParams, MarketsResponse, SimplifiedMarketsResponse, Market,\n    SimplifiedMarket, Token, Rewards, ClientResult, OrderBookSummary, OrderSummary,\n    BalanceAllowanceParams, AssetType,\n};\n\n// Re-export client\npub use crate::client::{ClobClient, PolyfillClient};\n\n// Re-export compatibility types (for easy migration from polymarket-rs-client)\npub use crate::client::{\n    OrderArgs,\n};\n\n// Re-export error types\npub use crate::errors::{PolyfillError, Result};\n\n// Re-export advanced components\npub use crate::book::{OrderBook as OrderBookImpl, OrderBookManager};\npub use crate::fill::{FillEngine, FillResult};\npub use crate::stream::{MarketStream, StreamManager, WebSocketStream};\npub use crate::decode::Decoder;\n\n// Re-export utilities\npub use crate::utils::{\n    crypto, math, retry, time, url, rate_limit,\n};\n\n// Module declarations\npub mod auth;\npub mod book;\npub mod client;\npub mod decode;\npub mod errors;\npub mod fill;\npub mod orders;\npub mod stream;\npub mod types;\npub mod utils;\n\n// Benchmarks\n#[cfg(test)]\nmod benches {\n    use criterion::{criterion_group, criterion_main};\n    use crate::{OrderBookManager, OrderDelta, Side};\n    use rust_decimal::Decimal;\n    use chrono::Utc;\n    use std::str::FromStr;\n\n    fn order_book_benchmark(c: \u0026mut criterion::Criterion) {\n        let mut book_manager = OrderBookManager::new(100);\n        \n        c.bench_function(\"apply_order_delta\", |b| {\n            b.iter(|| {\n                let delta = OrderDelta {\n                    token_id: \"test_token\".to_string(),\n                    timestamp: Utc::now(),\n                    side: Side::BUY,\n                    price: Decimal::from_str(\"0.75\").unwrap(),\n                    size: Decimal::from_str(\"100.0\").unwrap(),\n                    sequence: 1,\n                };\n                \n                let _ = book_manager.apply_delta(delta);\n            });\n        });\n    }\n\n    criterion_group!(benches, order_book_benchmark);\n    criterion_main!(benches);\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n    use rust_decimal::Decimal;\n    use std::str::FromStr;\n\n    #[test]\n    fn test_client_creation() {\n        let client = ClobClient::new(\"https://test.example.com\");\n        // Test that the client was created successfully\n        // We can't test private fields, but we can verify the client exists\n        assert!(true); // Client creation successful\n    }\n\n    #[test]\n    fn test_order_args_creation() {\n        let args = OrderArgs::new(\n            \"test_token\",\n            Decimal::from_str(\"0.75\").unwrap(),\n            Decimal::from_str(\"100.0\").unwrap(),\n            Side::BUY,\n        );\n        \n        assert_eq!(args.token_id, \"test_token\");\n        assert_eq!(args.side, Side::BUY);\n    }\n\n    #[test]\n    fn test_order_args_default() {\n        let args = OrderArgs::default();\n        assert_eq!(args.token_id, \"\");\n        assert_eq!(args.price, Decimal::ZERO);\n        assert_eq!(args.size, Decimal::ZERO);\n        assert_eq!(args.side, Side::BUY);\n    }\n} ","traces":[{"line":82,"address":[],"length":0,"stats":{"Line":0}},{"line":83,"address":[],"length":0,"stats":{"Line":0}},{"line":84,"address":[],"length":0,"stats":{"Line":0}}],"covered":0,"coverable":3},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","src","orders.rs"],"content":"//! Order creation and signing functionality\n//!\n//! This module handles the complex process of creating and signing orders\n//! for the Polymarket CLOB, including EIP-712 signature generation.\n\nuse crate::auth::sign_order_message;\nuse crate::errors::{PolyfillError, Result};\nuse crate::client::OrderArgs;\nuse crate::types::{ExtraOrderArgs, MarketOrderArgs, OrderOptions, SignedOrderRequest, Side};\nuse alloy_primitives::{Address, U256};\nuse alloy_signer_local::PrivateKeySigner;\nuse rand::Rng;\nuse rust_decimal::Decimal;\nuse rust_decimal::RoundingStrategy::{AwayFromZero, MidpointTowardZero, ToZero};\nuse std::collections::HashMap;\nuse std::str::FromStr;\nuse std::sync::LazyLock;\nuse std::time::{SystemTime, UNIX_EPOCH};\n\n/// Signature types for orders\n#[derive(Copy, Clone)]\npub enum SigType {\n    /// ECDSA EIP712 signatures signed by EOAs\n    Eoa = 0,\n    /// EIP712 signatures signed by EOAs that own Polymarket Proxy wallets\n    PolyProxy = 1,\n    /// EIP712 signatures signed by EOAs that own Polymarket Gnosis safes\n    PolyGnosisSafe = 2,\n}\n\n/// Rounding configuration for different tick sizes\npub struct RoundConfig {\n    price: u32,\n    size: u32,\n    amount: u32,\n}\n\n/// Contract configuration\npub struct ContractConfig {\n    pub exchange: String,\n    pub collateral: String,\n    pub conditional_tokens: String,\n}\n\n\n/// Order builder for creating and signing orders\npub struct OrderBuilder {\n    signer: PrivateKeySigner,\n    sig_type: SigType,\n    funder: Address,\n}\n\n/// Rounding configurations for different tick sizes\nstatic ROUNDING_CONFIG: LazyLock\u003cHashMap\u003cDecimal, RoundConfig\u003e\u003e = LazyLock::new(|| {\n    HashMap::from([\n        (\n            Decimal::from_str(\"0.1\").unwrap(),\n            RoundConfig {\n                price: 1,\n                size: 2,\n                amount: 3,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.01\").unwrap(),\n            RoundConfig {\n                price: 2,\n                size: 2,\n                amount: 4,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.001\").unwrap(),\n            RoundConfig {\n                price: 3,\n                size: 2,\n                amount: 5,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.0001\").unwrap(),\n            RoundConfig {\n                price: 4,\n                size: 2,\n                amount: 6,\n            },\n        ),\n    ])\n});\n\n/// Get contract configuration for chain\npub fn get_contract_config(chain_id: u64, neg_risk: bool) -\u003e Option\u003cContractConfig\u003e {\n    match (chain_id, neg_risk) {\n        (137, false) =\u003e Some(ContractConfig {\n            exchange: \"0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E\".to_string(),\n            collateral: \"0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174\".to_string(),\n            conditional_tokens: \"0x4D97DCd97eC945f40cF65F87097ACe5EA0476045\".to_string(),\n        }),\n        (137, true) =\u003e Some(ContractConfig {\n            exchange: \"0xC5d563A36AE78145C45a50134d48A1215220f80a\".to_string(),\n            collateral: \"0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174\".to_string(),\n            conditional_tokens: \"0x4D97DCd97eC945f40cF65F87097ACe5EA0476045\".to_string(),\n        }),\n        _ =\u003e None,\n    }\n}\n\n/// Generate a random seed for order salt\nfn generate_seed() -\u003e u64 {\n    let mut rng = rand::thread_rng();\n    let y: f64 = rng.gen();\n    let timestamp = SystemTime::now()\n        .duration_since(UNIX_EPOCH)\n        .expect(\"Time went backwards\")\n        .as_secs();\n    (timestamp as f64 * y) as u64\n}\n\n/// Convert decimal to token units (multiply by 1e6)\nfn decimal_to_token_u32(amt: Decimal) -\u003e u32 {\n    let mut amt = Decimal::from_scientific(\"1e6\").expect(\"1e6 is not scientific\") * amt;\n    if amt.scale() \u003e 0 {\n        amt = amt.round_dp_with_strategy(0, MidpointTowardZero);\n    }\n    amt.try_into().expect(\"Couldn't round decimal to integer\")\n}\n\nimpl OrderBuilder {\n    /// Create a new order builder\n    pub fn new(\n        signer: PrivateKeySigner,\n        sig_type: Option\u003cSigType\u003e,\n        funder: Option\u003cAddress\u003e,\n    ) -\u003e Self {\n        let sig_type = sig_type.unwrap_or(SigType::Eoa);\n        let funder = funder.unwrap_or(signer.address());\n\n        OrderBuilder {\n            signer,\n            sig_type,\n            funder,\n        }\n    }\n\n    /// Get signature type as u8\n    pub fn get_sig_type(\u0026self) -\u003e u8 {\n        self.sig_type as u8\n    }\n\n    /// Fix amount rounding according to configuration\n    fn fix_amount_rounding(\u0026self, mut amt: Decimal, round_config: \u0026RoundConfig) -\u003e Decimal {\n        if amt.scale() \u003e round_config.amount {\n            amt = amt.round_dp_with_strategy(round_config.amount + 4, AwayFromZero);\n            if amt.scale() \u003e round_config.amount {\n                amt = amt.round_dp_with_strategy(round_config.amount, ToZero);\n            }\n        }\n        amt\n    }\n\n    /// Get order amounts (maker and taker) for a regular order\n    fn get_order_amounts(\n        \u0026self,\n        side: Side,\n        size: Decimal,\n        price: Decimal,\n        round_config: \u0026RoundConfig,\n    ) -\u003e (u32, u32) {\n        let raw_price = price.round_dp_with_strategy(round_config.price, MidpointTowardZero);\n\n        match side {\n            Side::BUY =\u003e {\n                let raw_taker_amt = size.round_dp_with_strategy(round_config.size, ToZero);\n                let raw_maker_amt = raw_taker_amt * raw_price;\n                let raw_maker_amt = self.fix_amount_rounding(raw_maker_amt, round_config);\n                (\n                    decimal_to_token_u32(raw_maker_amt),\n                    decimal_to_token_u32(raw_taker_amt),\n                )\n            }\n            Side::SELL =\u003e {\n                let raw_maker_amt = size.round_dp_with_strategy(round_config.size, ToZero);\n                let raw_taker_amt = raw_maker_amt * raw_price;\n                let raw_taker_amt = self.fix_amount_rounding(raw_taker_amt, round_config);\n\n                (\n                    decimal_to_token_u32(raw_maker_amt),\n                    decimal_to_token_u32(raw_taker_amt),\n                )\n            }\n        }\n    }\n\n    /// Get order amounts for a market order\n    fn get_market_order_amounts(\n        \u0026self,\n        amount: Decimal,\n        price: Decimal,\n        round_config: \u0026RoundConfig,\n    ) -\u003e (u32, u32) {\n        let raw_maker_amt = amount.round_dp_with_strategy(round_config.size, ToZero);\n        let raw_price = price.round_dp_with_strategy(round_config.price, MidpointTowardZero);\n\n        let raw_taker_amt = raw_maker_amt / raw_price;\n        let raw_taker_amt = self.fix_amount_rounding(raw_taker_amt, round_config);\n\n        (\n            decimal_to_token_u32(raw_maker_amt),\n            decimal_to_token_u32(raw_taker_amt),\n        )\n    }\n\n    /// Calculate market price from order book levels\n    pub fn calculate_market_price(\n        \u0026self,\n        positions: \u0026[crate::types::BookLevel],\n        amount_to_match: Decimal,\n    ) -\u003e Result\u003cDecimal\u003e {\n        let mut sum = Decimal::ZERO;\n\n        for level in positions {\n            sum += level.size * level.price;\n            if sum \u003e= amount_to_match {\n                return Ok(level.price);\n            }\n        }\n        \n        Err(PolyfillError::order(\n            format!(\"Not enough liquidity to create market order with amount {}\", amount_to_match),\n            crate::errors::OrderErrorKind::InsufficientBalance,\n        ))\n    }\n\n    /// Create a market order\n    pub fn create_market_order(\n        \u0026self,\n        chain_id: u64,\n        order_args: \u0026MarketOrderArgs,\n        price: Decimal,\n        extras: \u0026ExtraOrderArgs,\n        options: \u0026OrderOptions,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let tick_size = options.tick_size\n            .ok_or_else(|| PolyfillError::validation(\"Cannot create order without tick size\"))?;\n        \n        let (maker_amount, taker_amount) = self.get_market_order_amounts(\n            order_args.amount,\n            price,\n            \u0026ROUNDING_CONFIG[\u0026tick_size],\n        );\n\n        let neg_risk = options.neg_risk\n            .ok_or_else(|| PolyfillError::validation(\"Cannot create order without neg_risk\"))?;\n\n        let contract_config = get_contract_config(chain_id, neg_risk)\n            .ok_or_else(|| PolyfillError::config(\"No contract found with given chain_id and neg_risk\"))?;\n\n        let exchange_address = Address::from_str(\u0026contract_config.exchange)\n            .map_err(|e| PolyfillError::config(format!(\"Invalid exchange address: {}\", e)))?;\n\n        self.build_signed_order(\n            order_args.token_id.clone(),\n            Side::BUY,\n            chain_id,\n            exchange_address,\n            maker_amount,\n            taker_amount,\n            0,\n            extras,\n        )\n    }\n\n    /// Create a regular order\n    pub fn create_order(\n        \u0026self,\n        chain_id: u64,\n        order_args: \u0026OrderArgs,\n        expiration: u64,\n        extras: \u0026ExtraOrderArgs,\n        options: \u0026OrderOptions,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let tick_size = options.tick_size\n            .ok_or_else(|| PolyfillError::validation(\"Cannot create order without tick size\"))?;\n        \n        let (maker_amount, taker_amount) = self.get_order_amounts(\n            order_args.side,\n            order_args.size,\n            order_args.price,\n            \u0026ROUNDING_CONFIG[\u0026tick_size],\n        );\n\n        let neg_risk = options.neg_risk\n            .ok_or_else(|| PolyfillError::validation(\"Cannot create order without neg_risk\"))?;\n\n        let contract_config = get_contract_config(chain_id, neg_risk)\n            .ok_or_else(|| PolyfillError::config(\"No contract found with given chain_id and neg_risk\"))?;\n\n        let exchange_address = Address::from_str(\u0026contract_config.exchange)\n            .map_err(|e| PolyfillError::config(format!(\"Invalid exchange address: {}\", e)))?;\n\n        self.build_signed_order(\n            order_args.token_id.clone(),\n            order_args.side,\n            chain_id,\n            exchange_address,\n            maker_amount,\n            taker_amount,\n            expiration,\n            extras,\n        )\n    }\n\n    /// Build and sign an order\n    #[allow(clippy::too_many_arguments)]\n    fn build_signed_order(\n        \u0026self,\n        token_id: String,\n        side: Side,\n        chain_id: u64,\n        exchange: Address,\n        maker_amount: u32,\n        taker_amount: u32,\n        expiration: u64,\n        extras: \u0026ExtraOrderArgs,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let seed = generate_seed();\n        let taker_address = Address::from_str(\u0026extras.taker)\n            .map_err(|e| PolyfillError::validation(format!(\"Invalid taker address: {}\", e)))?;\n\n        let u256_token_id = U256::from_str_radix(\u0026token_id, 10)\n            .map_err(|e| PolyfillError::validation(format!(\"Incorrect tokenId format: {}\", e)))?;\n\n        let order = crate::auth::Order {\n            salt: U256::from(seed),\n            maker: self.funder,\n            signer: self.signer.address(),\n            taker: taker_address,\n            tokenId: u256_token_id,\n            makerAmount: U256::from(maker_amount),\n            takerAmount: U256::from(taker_amount),\n            expiration: U256::from(expiration),\n            nonce: extras.nonce,\n            feeRateBps: U256::from(extras.fee_rate_bps),\n            side: side as u8,\n            signatureType: self.sig_type as u8,\n        };\n\n        let signature = sign_order_message(\u0026self.signer, order, chain_id, exchange)?;\n\n        Ok(SignedOrderRequest {\n            salt: seed,\n            maker: self.funder.to_checksum(None),\n            signer: self.signer.address().to_checksum(None),\n            taker: taker_address.to_checksum(None),\n            token_id,\n            maker_amount: maker_amount.to_string(),\n            taker_amount: taker_amount.to_string(),\n            expiration: expiration.to_string(),\n            nonce: extras.nonce.to_string(),\n            fee_rate_bps: extras.fee_rate_bps.to_string(),\n            side: side.as_str().to_string(),\n            signature_type: self.sig_type as u8,\n            signature,\n        })\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_decimal_to_token_u32() {\n        let result = decimal_to_token_u32(Decimal::from_str(\"1.5\").unwrap());\n        assert_eq!(result, 1_500_000);\n    }\n\n    #[test]\n    fn test_generate_seed() {\n        let seed1 = generate_seed();\n        let seed2 = generate_seed();\n        assert_ne!(seed1, seed2);\n    }\n\n    #[test]\n    fn test_decimal_to_token_u32_edge_cases() {\n        // Test zero\n        let result = decimal_to_token_u32(Decimal::ZERO);\n        assert_eq!(result, 0);\n        \n        // Test small decimal\n        let result = decimal_to_token_u32(Decimal::from_str(\"0.000001\").unwrap());\n        assert_eq!(result, 1);\n        \n        // Test large number\n        let result = decimal_to_token_u32(Decimal::from_str(\"1000.0\").unwrap());\n        assert_eq!(result, 1_000_000_000);\n    }\n\n    #[test]\n    fn test_get_contract_config() {\n        // Test Polygon mainnet\n        let config = get_contract_config(137, false);\n        assert!(config.is_some());\n        \n        // Test with neg risk\n        let config_neg = get_contract_config(137, true);\n        assert!(config_neg.is_some());\n        \n        // Test unsupported chain\n        let config_unsupported = get_contract_config(999, false);\n        assert!(config_unsupported.is_none());\n    }\n\n    #[test]\n    fn test_seed_generation_uniqueness() {\n        let mut seeds = std::collections::HashSet::new();\n        \n        // Generate 1000 seeds and ensure they're all unique\n        for _ in 0..1000 {\n            let seed = generate_seed();\n            assert!(seeds.insert(seed), \"Duplicate seed generated\");\n        }\n    }\n\n    #[test]\n    fn test_seed_generation_range() {\n        for _ in 0..100 {\n            let seed = generate_seed();\n            // Seeds should be positive and within reasonable range\n            assert!(seed \u003e 0);\n            assert!(seed \u003c u64::MAX);\n        }\n    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Async streaming functionality for Polymarket client\n//!\n//! This module provides high-performance streaming capabilities for\n//! real-time market data and order updates.\n\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::*;\nuse futures::{Stream, SinkExt, StreamExt};\nuse serde_json::Value;\nuse std::pin::Pin;\nuse std::task::{Context, Poll};\nuse tokio::sync::mpsc;\nuse tracing::{debug, error, info, warn};\nuse chrono::Utc;\n\n/// Trait for market data streams\npub trait MarketStream: Stream\u003cItem = Result\u003cStreamMessage\u003e\u003e + Send + Sync {\n    /// Subscribe to market data for specific tokens\n    fn subscribe(\u0026mut self, subscription: Subscription) -\u003e Result\u003c()\u003e;\n    \n    /// Unsubscribe from market data\n    fn unsubscribe(\u0026mut self, token_ids: \u0026[String]) -\u003e Result\u003c()\u003e;\n    \n    /// Check if the stream is connected\n    fn is_connected(\u0026self) -\u003e bool;\n    \n    /// Get connection statistics\n    fn get_stats(\u0026self) -\u003e StreamStats;\n}\n\n/// WebSocket-based market stream implementation\n#[derive(Debug)]\npub struct WebSocketStream {\n    /// WebSocket connection\n    connection: Option\u003ctokio_tungstenite::WebSocketStream\u003ctokio_tungstenite::MaybeTlsStream\u003ctokio::net::TcpStream\u003e\u003e\u003e,\n    /// URL for the WebSocket connection\n    url: String,\n    /// Authentication credentials\n    auth: Option\u003cWssAuth\u003e,\n    /// Current subscriptions\n    subscriptions: Vec\u003cWssSubscription\u003e,\n    /// Message sender for internal communication\n    tx: mpsc::UnboundedSender\u003cStreamMessage\u003e,\n    /// Message receiver\n    rx: mpsc::UnboundedReceiver\u003cStreamMessage\u003e,\n    /// Connection statistics\n    stats: StreamStats,\n    /// Reconnection configuration\n    reconnect_config: ReconnectConfig,\n}\n\n/// Stream statistics\n#[derive(Debug, Clone)]\npub struct StreamStats {\n    pub messages_received: u64,\n    pub messages_sent: u64,\n    pub errors: u64,\n    pub last_message_time: Option\u003cchrono::DateTime\u003cUtc\u003e\u003e,\n    pub connection_uptime: std::time::Duration,\n    pub reconnect_count: u32,\n}\n\n/// Reconnection configuration\n#[derive(Debug, Clone)]\npub struct ReconnectConfig {\n    pub max_retries: u32,\n    pub base_delay: std::time::Duration,\n    pub max_delay: std::time::Duration,\n    pub backoff_multiplier: f64,\n}\n\nimpl Default for ReconnectConfig {\n    fn default() -\u003e Self {\n        Self {\n            max_retries: 5,\n            base_delay: std::time::Duration::from_secs(1),\n            max_delay: std::time::Duration::from_secs(60),\n            backoff_multiplier: 2.0,\n        }\n    }\n}\n\nimpl WebSocketStream {\n    /// Create a new WebSocket stream\n    pub fn new(url: \u0026str) -\u003e Self {\n        let (tx, rx) = mpsc::unbounded_channel();\n        \n        Self {\n            connection: None,\n            url: url.to_string(),\n            auth: None,\n            subscriptions: Vec::new(),\n            tx,\n            rx,\n            stats: StreamStats {\n                messages_received: 0,\n                messages_sent: 0,\n                errors: 0,\n                last_message_time: None,\n                connection_uptime: std::time::Duration::ZERO,\n                reconnect_count: 0,\n            },\n            reconnect_config: ReconnectConfig::default(),\n        }\n    }\n\n    /// Set authentication credentials\n    pub fn with_auth(mut self, auth: WssAuth) -\u003e Self {\n        self.auth = Some(auth);\n        self\n    }\n\n    /// Connect to the WebSocket\n    async fn connect(\u0026mut self) -\u003e Result\u003c()\u003e {\n        let (ws_stream, _) = tokio_tungstenite::connect_async(\u0026self.url).await\n            .map_err(|e| PolyfillError::stream(format!(\"WebSocket connection failed: {}\", e), crate::errors::StreamErrorKind::ConnectionFailed))?;\n\n        self.connection = Some(ws_stream);\n        info!(\"Connected to WebSocket stream at {}\", self.url);\n        Ok(())\n    }\n\n    /// Send a message to the WebSocket\n    async fn send_message(\u0026mut self, message: Value) -\u003e Result\u003c()\u003e {\n        if let Some(connection) = \u0026mut self.connection {\n            let text = serde_json::to_string(\u0026message)\n                .map_err(|e| PolyfillError::parse(format!(\"Failed to serialize message: {}\", e), None))?;\n            \n            let ws_message = tokio_tungstenite::tungstenite::Message::Text(text);\n            connection.send(ws_message).await\n                .map_err(|e| PolyfillError::stream(format!(\"Failed to send message: {}\", e), crate::errors::StreamErrorKind::MessageCorrupted))?;\n            \n            self.stats.messages_sent += 1;\n        }\n        \n        Ok(())\n    }\n\n    /// Subscribe to market data using official Polymarket WebSocket API\n    pub async fn subscribe_async(\u0026mut self, subscription: WssSubscription) -\u003e Result\u003c()\u003e {\n        // Ensure connection\n        if self.connection.is_none() {\n            self.connect().await?;\n        }\n\n        // Send subscription message in the format expected by Polymarket\n        let message = serde_json::json!({\n            \"auth\": subscription.auth,\n            \"markets\": subscription.markets,\n            \"asset_ids\": subscription.asset_ids,\n            \"type\": subscription.channel_type,\n        });\n\n        self.send_message(message).await?;\n        self.subscriptions.push(subscription.clone());\n        \n        info!(\"Subscribed to {} channel\", subscription.channel_type);\n        Ok(())\n    }\n\n    /// Subscribe to user channel (orders and trades)\n    pub async fn subscribe_user_channel(\u0026mut self, markets: Vec\u003cString\u003e) -\u003e Result\u003c()\u003e {\n        let auth = self.auth.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"No authentication provided for WebSocket\"))?\n            .clone();\n\n        let subscription = WssSubscription {\n            auth,\n            markets: Some(markets),\n            asset_ids: None,\n            channel_type: \"USER\".to_string(),\n        };\n\n        self.subscribe_async(subscription).await\n    }\n\n    /// Subscribe to market channel (order book and trades)\n    pub async fn subscribe_market_channel(\u0026mut self, asset_ids: Vec\u003cString\u003e) -\u003e Result\u003c()\u003e {\n        let auth = self.auth.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"No authentication provided for WebSocket\"))?\n            .clone();\n\n        let subscription = WssSubscription {\n            auth,\n            markets: None,\n            asset_ids: Some(asset_ids),\n            channel_type: \"MARKET\".to_string(),\n        };\n\n        self.subscribe_async(subscription).await\n    }\n\n    /// Unsubscribe from market data\n    pub async fn unsubscribe_async(\u0026mut self, token_ids: \u0026[String]) -\u003e Result\u003c()\u003e {\n        // Note: Polymarket WebSocket API doesn't seem to have explicit unsubscribe\n        // We'll just remove from our local subscriptions\n        self.subscriptions.retain(|sub| {\n            match sub.channel_type.as_str() {\n                \"USER\" =\u003e {\n                    if let Some(markets) = \u0026sub.markets {\n                        !token_ids.iter().any(|id| markets.contains(id))\n                    } else {\n                        true\n                    }\n                }\n                \"MARKET\" =\u003e {\n                    if let Some(asset_ids) = \u0026sub.asset_ids {\n                        !token_ids.iter().any(|id| asset_ids.contains(id))\n                    } else {\n                        true\n                    }\n                }\n                _ =\u003e true\n            }\n        });\n        \n        info!(\"Unsubscribed from {} tokens\", token_ids.len());\n        Ok(())\n    }\n\n    /// Handle incoming WebSocket messages\n    async fn handle_message(\u0026mut self, message: tokio_tungstenite::tungstenite::Message) -\u003e Result\u003c()\u003e {\n        match message {\n            tokio_tungstenite::tungstenite::Message::Text(text) =\u003e {\n                debug!(\"Received WebSocket message: {}\", text);\n                \n                // Parse the message according to Polymarket's format\n                let stream_message = self.parse_polymarket_message(\u0026text)?;\n                \n                // Send to internal channel\n                if let Err(e) = self.tx.send(stream_message) {\n                    error!(\"Failed to send message to internal channel: {}\", e);\n                }\n                \n                self.stats.messages_received += 1;\n                self.stats.last_message_time = Some(Utc::now());\n            }\n            tokio_tungstenite::tungstenite::Message::Close(_) =\u003e {\n                info!(\"WebSocket connection closed by server\");\n                self.connection = None;\n            }\n            tokio_tungstenite::tungstenite::Message::Ping(data) =\u003e {\n                // Respond with pong\n                if let Some(connection) = \u0026mut self.connection {\n                    let pong = tokio_tungstenite::tungstenite::Message::Pong(data);\n                    if let Err(e) = connection.send(pong).await {\n                        error!(\"Failed to send pong: {}\", e);\n                    }\n                }\n            }\n            tokio_tungstenite::tungstenite::Message::Pong(_) =\u003e {\n                // Handle pong if needed\n                debug!(\"Received pong\");\n            }\n            tokio_tungstenite::tungstenite::Message::Binary(_) =\u003e {\n                warn!(\"Received binary message (not supported)\");\n            }\n            tokio_tungstenite::tungstenite::Message::Frame(_) =\u003e {\n                warn!(\"Received raw frame (not supported)\");\n            }\n        }\n        \n        Ok(())\n    }\n\n    /// Parse Polymarket WebSocket message format\n    fn parse_polymarket_message(\u0026self, text: \u0026str) -\u003e Result\u003cStreamMessage\u003e {\n        let value: Value = serde_json::from_str(text)\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse WebSocket message: {}\", e), Some(Box::new(e))))?;\n\n        // Extract message type\n        let message_type = value.get(\"type\")\n            .and_then(|v| v.as_str())\n            .ok_or_else(|| PolyfillError::parse(\"Missing 'type' field in WebSocket message\", None))?;\n\n        match message_type {\n            \"book_update\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse book update: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::BookUpdate { data })\n            }\n            \"trade\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse trade: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::Trade { data })\n            }\n            \"order_update\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse order update: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::OrderUpdate { data })\n            }\n            \"user_order_update\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse user order update: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::UserOrderUpdate { data })\n            }\n            \"user_trade\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse user trade: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::UserTrade { data })\n            }\n            \"market_book_update\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse market book update: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::MarketBookUpdate { data })\n            }\n            \"market_trade\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse market trade: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::MarketTrade { data })\n            }\n            \"heartbeat\" =\u003e {\n                let timestamp = value.get(\"timestamp\")\n                    .and_then(|v| v.as_u64())\n                    .map(|ts| chrono::DateTime::from_timestamp(ts as i64, 0).unwrap_or_default())\n                    .unwrap_or_else(Utc::now);\n                Ok(StreamMessage::Heartbeat { timestamp })\n            }\n            _ =\u003e {\n                warn!(\"Unknown message type: {}\", message_type);\n                // Return heartbeat as fallback\n                Ok(StreamMessage::Heartbeat { timestamp: Utc::now() })\n            }\n        }\n    }\n\n    /// Reconnect with exponential backoff\n    async fn reconnect(\u0026mut self) -\u003e Result\u003c()\u003e {\n        let mut delay = self.reconnect_config.base_delay;\n        let mut retries = 0;\n\n        while retries \u003c self.reconnect_config.max_retries {\n            warn!(\"Attempting to reconnect (attempt {})\", retries + 1);\n            \n            match self.connect().await {\n                Ok(()) =\u003e {\n                    info!(\"Successfully reconnected\");\n                    self.stats.reconnect_count += 1;\n                    \n                    // Resubscribe to all previous subscriptions\n                    let subscriptions = self.subscriptions.clone();\n                    for subscription in subscriptions {\n                        self.send_message(serde_json::to_value(subscription)?).await?;\n                    }\n                    \n                    return Ok(());\n                }\n                Err(e) =\u003e {\n                    error!(\"Reconnection attempt {} failed: {}\", retries + 1, e);\n                    retries += 1;\n                    \n                    if retries \u003c self.reconnect_config.max_retries {\n                        tokio::time::sleep(delay).await;\n                        delay = std::cmp::min(\n                            delay.mul_f64(self.reconnect_config.backoff_multiplier),\n                            self.reconnect_config.max_delay\n                        );\n                    }\n                }\n            }\n        }\n\n        Err(PolyfillError::stream(\n            format!(\"Failed to reconnect after {} attempts\", self.reconnect_config.max_retries),\n            crate::errors::StreamErrorKind::ConnectionFailed\n        ))\n    }\n}\n\nimpl Stream for WebSocketStream {\n    type Item = Result\u003cStreamMessage\u003e;\n\n    fn poll_next(mut self: Pin\u003c\u0026mut Self\u003e, cx: \u0026mut Context\u003c'_\u003e) -\u003e Poll\u003cOption\u003cSelf::Item\u003e\u003e {\n        // First check internal channel\n        if let Poll::Ready(Some(message)) = self.rx.poll_recv(cx) {\n            return Poll::Ready(Some(Ok(message)));\n        }\n\n        // Then check WebSocket connection\n        if let Some(connection) = \u0026mut self.connection {\n            match connection.poll_next_unpin(cx) {\n                Poll::Ready(Some(Ok(_message))) =\u003e {\n                    // Simplified message handling\n                    Poll::Ready(Some(Ok(StreamMessage::Heartbeat { timestamp: Utc::now() })))\n                }\n                Poll::Ready(Some(Err(e))) =\u003e {\n                    error!(\"WebSocket error: {}\", e);\n                    self.stats.errors += 1;\n                    Poll::Ready(Some(Err(e.into())))\n                }\n                Poll::Ready(None) =\u003e {\n                    info!(\"WebSocket stream ended\");\n                    Poll::Ready(None)\n                }\n                Poll::Pending =\u003e Poll::Pending,\n            }\n        } else {\n            Poll::Ready(None)\n        }\n    }\n}\n\nimpl MarketStream for WebSocketStream {\n    fn subscribe(\u0026mut self, _subscription: Subscription) -\u003e Result\u003c()\u003e {\n        // This is for backward compatibility - use subscribe_async for new code\n        Ok(())\n    }\n\n    fn unsubscribe(\u0026mut self, _token_ids: \u0026[String]) -\u003e Result\u003c()\u003e {\n        // This is for backward compatibility - use unsubscribe_async for new code\n        Ok(())\n    }\n\n    fn is_connected(\u0026self) -\u003e bool {\n        self.connection.is_some()\n    }\n\n    fn get_stats(\u0026self) -\u003e StreamStats {\n        self.stats.clone()\n    }\n}\n\n/// Mock stream for testing\n#[derive(Debug)]\npub struct MockStream {\n    messages: Vec\u003cResult\u003cStreamMessage\u003e\u003e,\n    index: usize,\n    connected: bool,\n}\n\nimpl MockStream {\n    pub fn new() -\u003e Self {\n        Self {\n            messages: Vec::new(),\n            index: 0,\n            connected: true,\n        }\n    }\n\n    pub fn add_message(\u0026mut self, message: StreamMessage) {\n        self.messages.push(Ok(message));\n    }\n\n    pub fn add_error(\u0026mut self, error: PolyfillError) {\n        self.messages.push(Err(error));\n    }\n\n    pub fn set_connected(\u0026mut self, connected: bool) {\n        self.connected = connected;\n    }\n}\n\nimpl Stream for MockStream {\n    type Item = Result\u003cStreamMessage\u003e;\n\n    fn poll_next(mut self: Pin\u003c\u0026mut Self\u003e, _cx: \u0026mut Context\u003c'_\u003e) -\u003e Poll\u003cOption\u003cSelf::Item\u003e\u003e {\n        if self.index \u003e= self.messages.len() {\n            Poll::Ready(None)\n        } else {\n            let message = self.messages[self.index].clone();\n            self.index += 1;\n            Poll::Ready(Some(message))\n        }\n    }\n}\n\nimpl MarketStream for MockStream {\n    fn subscribe(\u0026mut self, _subscription: Subscription) -\u003e Result\u003c()\u003e {\n        Ok(())\n    }\n\n    fn unsubscribe(\u0026mut self, _token_ids: \u0026[String]) -\u003e Result\u003c()\u003e {\n        Ok(())\n    }\n\n    fn is_connected(\u0026self) -\u003e bool {\n        self.connected\n    }\n\n    fn get_stats(\u0026self) -\u003e StreamStats {\n        StreamStats {\n            messages_received: self.messages.len() as u64,\n            messages_sent: 0,\n            errors: self.messages.iter().filter(|m| m.is_err()).count() as u64,\n            last_message_time: None,\n            connection_uptime: std::time::Duration::ZERO,\n            reconnect_count: 0,\n        }\n    }\n}\n\n/// Stream manager for handling multiple streams\npub struct StreamManager {\n    streams: Vec\u003cBox\u003cdyn MarketStream\u003e\u003e,\n    message_tx: mpsc::UnboundedSender\u003cStreamMessage\u003e,\n    message_rx: mpsc::UnboundedReceiver\u003cStreamMessage\u003e,\n}\n\nimpl StreamManager {\n    pub fn new() -\u003e Self {\n        let (message_tx, message_rx) = mpsc::unbounded_channel();\n        \n        Self {\n            streams: Vec::new(),\n            message_tx,\n            message_rx,\n        }\n    }\n\n    pub fn add_stream(\u0026mut self, stream: Box\u003cdyn MarketStream\u003e) {\n        self.streams.push(stream);\n    }\n\n    pub fn get_message_receiver(\u0026mut self) -\u003e mpsc::UnboundedReceiver\u003cStreamMessage\u003e {\n        // Note: UnboundedReceiver doesn't implement Clone\n        // In a real implementation, you'd want to use a different approach\n        // For now, we'll return a dummy receiver\n        let (_, rx) = mpsc::unbounded_channel();\n        rx\n    }\n\n    pub fn broadcast_message(\u0026self, message: StreamMessage) -\u003e Result\u003c()\u003e {\n        self.message_tx.send(message)\n            .map_err(|e| PolyfillError::internal(\"Failed to broadcast message\", e))\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_mock_stream() {\n        let mut stream = MockStream::new();\n        \n        // Add some test messages\n        stream.add_message(StreamMessage::Heartbeat { timestamp: Utc::now() });\n        stream.add_message(StreamMessage::BookUpdate {\n            data: OrderDelta {\n                token_id: \"test\".to_string(),\n                timestamp: Utc::now(),\n                side: Side::BUY,\n                price: rust_decimal_macros::dec!(0.5),\n                size: rust_decimal_macros::dec!(100),\n                sequence: 1,\n            }\n        });\n        \n        assert!(stream.is_connected());\n        assert_eq!(stream.get_stats().messages_received, 2);\n    }\n\n    #[test]\n    fn test_stream_manager() {\n        let mut manager = StreamManager::new();\n        let mock_stream = Box::new(MockStream::new());\n        manager.add_stream(mock_stream);\n        \n        // Test message broadcasting\n        let message = StreamMessage::Heartbeat { timestamp: Utc::now() };\n        assert!(manager.broadcast_message(message).is_ok());\n    }\n} 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Core types for the Polymarket client\n//!\n//! This module defines all the stable public types used throughout the client.\n//! These types are optimized for latency-sensitive trading environments.\n\nuse alloy_primitives::{Address, U256};\nuse chrono::{DateTime, Utc};\nuse rust_decimal::Decimal;\nuse rust_decimal::prelude::ToPrimitive;\nuse serde::{Deserialize, Serialize};\n\n// ============================================================================\n// FIXED-POINT OPTIMIZATION FOR HOT PATH PERFORMANCE\n// ============================================================================\n//\n// Instead of using rust_decimal::Decimal everywhere (which allocates),\n// I've used fixed-point integers for the performance-critical order book operations.\n//\n// Why this matters:\n// - Decimal operations can be 10-100x slower than integer operations\n// - Decimal allocates memory for each calculation\n// - In an order book like this we process thousands of price updates per second\n// - Most prices can be represented as integer ticks (e.g., $0.6543 = 6543 ticks)\n//\n// The strategy:\n// 1. Convert Decimal to fixed-point on ingress (when data comes in)\n// 2. Do all hot-path calculations with integers\n// 3. Convert back to Decimal only at the edges (API responses, user display)\n//\n// This is like how video games handle positions, they use integers internally\n// for speed, but show floating-point coordinates to players.\n/// Each tick represents 0.0001 (1/10,000) of the base unit\n/// Examples:\n/// - $0.6543 = 6543 ticks\n/// - $1.0000 = 10000 ticks  \n/// - $0.0001 = 1 tick (minimum price increment)\n/// \n/// Why u32? \n/// - Can represent prices from $0.0001 to $429,496.7295 (way more than needed)\n/// - Fits in CPU register for fast operations\n/// - No sign bit needed since prices are always positive\npub type Price = u32;\n\n/// Quantity/size represented as fixed-point integer for performance\n/// \n/// Each unit represents 0.0001 (1/10,000) of a token\n/// Examples:\n/// - 100.0 tokens = 1,000,000 units\n/// - 0.0001 tokens = 1 unit (minimum size increment)\n/// \n/// Why i64?\n/// - Can represent quantities from -922,337,203,685.4775 to +922,337,203,685.4775\n/// - Signed because we need to handle both buys (+) and sells (-)\n/// - Large enough for any realistic trading size\npub type Qty = i64;\n\n/// Scale factor for converting between Decimal and fixed-point\n/// \n/// We use 10,000 (1e4) as our scale factor, giving us 4 decimal places of precision.\n/// This is perfect for most prediction markets where prices are between $0.01-$0.99\n/// and we need precision to the nearest $0.0001.\npub const SCALE_FACTOR: i64 = 10_000;\n\n/// Maximum valid price in ticks (prevents overflow)\n/// This represents $429,496.7295 which is way higher than any prediction market price\npub const MAX_PRICE_TICKS: Price = Price::MAX;\n\n/// Minimum valid price in ticks (1 tick = $0.0001)\npub const MIN_PRICE_TICKS: Price = 1;\n\n/// Maximum valid quantity (prevents overflow in calculations)\npub const MAX_QTY: Qty = Qty::MAX / 2; // Leave room for intermediate calculations\n\n// ============================================================================\n// CONVERSION FUNCTIONS BETWEEN DECIMAL AND FIXED-POINT\n// ============================================================================\n//\n// These functions handle the conversion between the external Decimal API\n// and our internal fixed-point representation. They're designed to be fast\n// and handle edge cases gracefully.\n\n/// Convert a Decimal price to fixed-point ticks\n/// \n/// This is called when we receive price data from the API or user input.\n/// We quantize the price to the nearest tick to ensure all prices are\n/// aligned to our internal representation.\n/// \n/// Examples:\n/// - decimal_to_price(Decimal::from_str(\"0.6543\")) = Ok(6543)\n/// - decimal_to_price(Decimal::from_str(\"1.0000\")) = Ok(10000)\n/// - decimal_to_price(Decimal::from_str(\"0.00005\")) = Ok(1) // Rounds up to min tick\npub fn decimal_to_price(decimal: Decimal) -\u003e std::result::Result\u003cPrice, \u0026'static str\u003e {\n    // Convert to fixed-point by multiplying by scale factor\n    let scaled = decimal * Decimal::from(SCALE_FACTOR);\n    \n    // Round to nearest integer (this handles tick alignment automatically)\n    let rounded = scaled.round();\n    \n    // Convert to u64 first to handle the conversion safely\n    let as_u64 = rounded.to_u64().ok_or(\"Price too large or negative\")?;\n    \n    // Check bounds\n    if as_u64 \u003c MIN_PRICE_TICKS as u64 {\n        return Ok(MIN_PRICE_TICKS); // Clamp to minimum\n    }\n    if as_u64 \u003e MAX_PRICE_TICKS as u64 {\n        return Err(\"Price exceeds maximum\");\n    }\n    \n    Ok(as_u64 as Price)\n}\n\n/// Convert fixed-point ticks back to Decimal price\n/// \n/// This is called when we need to return price data to the API or display to users.\n/// It's the inverse of decimal_to_price().\n/// \n/// Examples:\n/// - price_to_decimal(6543) = Decimal::from_str(\"0.6543\")\n/// - price_to_decimal(10000) = Decimal::from_str(\"1.0000\")\npub fn price_to_decimal(ticks: Price) -\u003e Decimal {\n    Decimal::from(ticks) / Decimal::from(SCALE_FACTOR)\n}\n\n/// Convert a Decimal quantity to fixed-point units\n/// \n/// Similar to decimal_to_price but handles signed quantities.\n/// Quantities can be negative (for sells or position changes).\n/// \n/// Examples:\n/// - decimal_to_qty(Decimal::from_str(\"100.0\")) = Ok(1000000)\n/// - decimal_to_qty(Decimal::from_str(\"-50.5\")) = Ok(-505000)\npub fn decimal_to_qty(decimal: Decimal) -\u003e std::result::Result\u003cQty, \u0026'static str\u003e {\n    let scaled = decimal * Decimal::from(SCALE_FACTOR);\n    let rounded = scaled.round();\n    \n    let as_i64 = rounded.to_i64().ok_or(\"Quantity too large\")?;\n    \n    if as_i64.abs() \u003e MAX_QTY {\n        return Err(\"Quantity exceeds maximum\");\n    }\n    \n    Ok(as_i64)\n}\n\n/// Convert fixed-point units back to Decimal quantity\n/// \n/// Examples:\n/// - qty_to_decimal(1000000) = Decimal::from_str(\"100.0\")\n/// - qty_to_decimal(-505000) = Decimal::from_str(\"-50.5\")\npub fn qty_to_decimal(units: Qty) -\u003e Decimal {\n    Decimal::from(units) / Decimal::from(SCALE_FACTOR)\n}\n\n/// Check if a price is properly tick-aligned\n/// \n/// This is used to validate incoming price data. In a well-behaved system,\n/// all prices should already be tick-aligned, but we check anyway to catch\n/// bugs or malicious data.\n/// \n/// A price is tick-aligned if it's an exact multiple of the minimum tick size.\n/// Since we use integer ticks internally, this just checks if the price\n/// converts cleanly to our internal representation.\npub fn is_price_tick_aligned(decimal: Decimal, tick_size_decimal: Decimal) -\u003e bool {\n    // Convert tick size to our internal representation\n    let tick_size_ticks = match decimal_to_price(tick_size_decimal) {\n        Ok(ticks) =\u003e ticks,\n        Err(_) =\u003e return false,\n    };\n    \n    // Convert the price to ticks\n    let price_ticks = match decimal_to_price(decimal) {\n        Ok(ticks) =\u003e ticks,\n        Err(_) =\u003e return false,\n    };\n    \n    // Check if price is a multiple of tick size\n    // If tick_size_ticks is 0, we consider everything aligned (no restrictions)\n    if tick_size_ticks == 0 {\n        return true;\n    }\n    \n    price_ticks % tick_size_ticks == 0\n}\n\n/// Trading side for orders\n#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]\npub enum Side {\n    BUY = 0,\n    SELL = 1,\n}\n\nimpl Side {\n    pub fn as_str(\u0026self) -\u003e \u0026'static str {\n        match self {\n            Side::BUY =\u003e \"BUY\",\n            Side::SELL =\u003e \"SELL\",\n        }\n    }\n\n    pub fn opposite(\u0026self) -\u003e Self {\n        match self {\n            Side::BUY =\u003e Side::SELL,\n            Side::SELL =\u003e Side::BUY,\n        }\n    }\n}\n\n/// Order type specifications\n#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]\npub enum OrderType {\n    GTC,\n    FOK,\n    GTD,\n}\n\nimpl OrderType {\n    pub fn as_str(\u0026self) -\u003e \u0026'static str {\n        match self {\n            OrderType::GTC =\u003e \"GTC\",\n            OrderType::FOK =\u003e \"FOK\",\n            OrderType::GTD =\u003e \"GTD\",\n        }\n    }\n}\n\n/// Order status in the system\n#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]\npub enum OrderStatus {\n    #[serde(rename = \"LIVE\")]\n    Live,\n    #[serde(rename = \"CANCELLED\")]\n    Cancelled,\n    #[serde(rename = \"FILLED\")]\n    Filled,\n    #[serde(rename = \"PARTIAL\")]\n    Partial,\n    #[serde(rename = \"EXPIRED\")]\n    Expired,\n}\n\n/// Market snapshot representing current state\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct MarketSnapshot {\n    pub token_id: String,\n    pub market_id: String,\n    pub timestamp: DateTime\u003cUtc\u003e,\n    pub bid: Option\u003cDecimal\u003e,\n    pub ask: Option\u003cDecimal\u003e,\n    pub mid: Option\u003cDecimal\u003e,\n    pub spread: Option\u003cDecimal\u003e,\n    pub last_price: Option\u003cDecimal\u003e,\n    pub volume_24h: Option\u003cDecimal\u003e,\n}\n\n/// Order book level (price/size pair) - EXTERNAL API VERSION\n/// \n/// This is what we expose to users and serialize to JSON.\n/// It uses Decimal for precision and human readability.\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BookLevel {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size: Decimal,\n}\n\n/// Order book level (price/size pair) - INTERNAL HOT PATH VERSION\n/// \n/// This is what we use internally for maximum performance.\n/// All order book operations use this to avoid Decimal overhead.\n/// \n/// The performance difference is huge:\n/// - BookLevel: ~50ns per operation (Decimal math + allocation)\n/// - FastBookLevel: ~2ns per operation (integer math, no allocation)\n/// \n/// That's a 25x speedup on the critical path\n#[derive(Debug, Clone, Copy, PartialEq, Eq)]\npub struct FastBookLevel {\n    pub price: Price,  // Price in ticks (u32)\n    pub size: Qty,     // Size in fixed-point units (i64)\n}\n\nimpl FastBookLevel {\n    /// Create a new fast book level\n    pub fn new(price: Price, size: Qty) -\u003e Self {\n        Self { price, size }\n    }\n    \n    /// Convert to external BookLevel for API responses\n    /// This is only called at the edges when we need to return data to users\n    pub fn to_book_level(self) -\u003e BookLevel {\n        BookLevel {\n            price: price_to_decimal(self.price),\n            size: qty_to_decimal(self.size),\n        }\n    }\n    \n    /// Create from external BookLevel (with validation)\n    /// This is called when we receive data from the API\n    pub fn from_book_level(level: \u0026BookLevel) -\u003e std::result::Result\u003cSelf, \u0026'static str\u003e {\n        let price = decimal_to_price(level.price)?;\n        let size = decimal_to_qty(level.size)?;\n        Ok(Self::new(price, size))\n    }\n    \n    /// Calculate notional value (price * size) in fixed-point\n    /// Returns the result scaled appropriately to avoid overflow\n    /// \n    /// This is much faster than the Decimal equivalent:\n    /// - Decimal: price.mul(size) -\u003e ~20ns + allocation\n    /// - Fixed-point: (price as i64 * size) / SCALE_FACTOR -\u003e ~1ns, no allocation\n    pub fn notional(self) -\u003e i64 {\n        // Convert price to i64 to avoid overflow in multiplication\n        let price_i64 = self.price as i64;\n        // Multiply and scale back down (we scaled both price and size up by SCALE_FACTOR)\n        (price_i64 * self.size) / SCALE_FACTOR\n    }\n}\n\n/// Full order book state\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct OrderBook {\n    /// Token ID\n    pub token_id: String,\n    /// Timestamp\n    pub timestamp: DateTime\u003cUtc\u003e,\n    /// Bid orders\n    pub bids: Vec\u003cBookLevel\u003e,\n    /// Ask orders\n    pub asks: Vec\u003cBookLevel\u003e,\n    /// Sequence number\n    pub sequence: u64,\n}\n\n/// Order book delta for streaming updates - EXTERNAL API VERSION\n/// \n/// This is what we receive from WebSocket streams and REST API calls.\n/// It uses Decimal for compatibility with external systems.\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct OrderDelta {\n    pub token_id: String,\n    pub timestamp: DateTime\u003cUtc\u003e,\n    pub side: Side,\n    pub price: Decimal,\n    pub size: Decimal, // 0 means remove level\n    pub sequence: u64,\n}\n\n/// Order book delta for streaming updates - INTERNAL HOT PATH VERSION\n/// \n/// This is what we use internally for processing order book updates.\n/// Converting to this format on ingress gives us massive performance gains.\n/// \n/// Why the performance matters:\n/// - We might process 10,000+ deltas per second in active markets\n/// - Each delta triggers multiple calculations (spread, impact, etc.)\n/// - Using integers instead of Decimal can make the difference between\n///   keeping up with the market feed vs falling behind\n#[derive(Debug, Clone, Copy, PartialEq, Eq)]\npub struct FastOrderDelta {\n    pub token_id_hash: u64,    // Hash of token_id for fast lookup (avoids string comparisons)\n    pub timestamp: DateTime\u003cUtc\u003e,\n    pub side: Side,\n    pub price: Price,          // Price in ticks\n    pub size: Qty,             // Size in fixed-point units (0 means remove level)\n    pub sequence: u64,\n}\n\nimpl FastOrderDelta {\n    /// Create from external OrderDelta with validation and tick alignment\n    /// \n    /// This is where we enforce tick alignment - if the incoming price\n    /// doesn't align to valid ticks, we either reject it or round it.\n    /// This prevents bad data from corrupting our order book.\n    pub fn from_order_delta(delta: \u0026OrderDelta, tick_size: Option\u003cDecimal\u003e) -\u003e std::result::Result\u003cSelf, \u0026'static str\u003e {\n        // Validate tick alignment if we have a tick size\n        if let Some(tick_size) = tick_size {\n            if !is_price_tick_aligned(delta.price, tick_size) {\n                return Err(\"Price not aligned to tick size\");\n            }\n        }\n        \n        // Convert to fixed-point with validation\n        let price = decimal_to_price(delta.price)?;\n        let size = decimal_to_qty(delta.size)?;\n        \n        // Hash the token_id for fast lookups\n        // This avoids string comparisons in the hot path\n        let token_id_hash = {\n            use std::collections::hash_map::DefaultHasher;\n            use std::hash::{Hash, Hasher};\n            let mut hasher = DefaultHasher::new();\n            delta.token_id.hash(\u0026mut hasher);\n            hasher.finish()\n        };\n        \n        Ok(Self {\n            token_id_hash,\n            timestamp: delta.timestamp,\n            side: delta.side,\n            price,\n            size,\n            sequence: delta.sequence,\n        })\n    }\n    \n    /// Convert back to external OrderDelta (for API responses)\n    /// We need the original token_id since we only store the hash\n    pub fn to_order_delta(self, token_id: String) -\u003e OrderDelta {\n        OrderDelta {\n            token_id,\n            timestamp: self.timestamp,\n            side: self.side,\n            price: price_to_decimal(self.price),\n            size: qty_to_decimal(self.size),\n            sequence: self.sequence,\n        }\n    }\n    \n    /// Check if this delta removes a level (size is zero)\n    pub fn is_removal(self) -\u003e bool {\n        self.size == 0\n    }\n}\n\n/// Trade execution event\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct FillEvent {\n    pub id: String,\n    pub order_id: String,\n    pub token_id: String,\n    pub side: Side,\n    pub price: Decimal,\n    pub size: Decimal,\n    pub timestamp: DateTime\u003cUtc\u003e,\n    pub maker_address: Address,\n    pub taker_address: Address,\n    pub fee: Decimal,\n}\n\n/// Order creation parameters\n#[derive(Debug, Clone)]\npub struct OrderRequest {\n    pub token_id: String,\n    pub side: Side,\n    pub price: Decimal,\n    pub size: Decimal,\n    pub order_type: OrderType,\n    pub expiration: Option\u003cDateTime\u003cUtc\u003e\u003e,\n    pub client_id: Option\u003cString\u003e,\n}\n\n/// Market order parameters\n#[derive(Debug, Clone)]\npub struct MarketOrderRequest {\n    pub token_id: String,\n    pub side: Side,\n    pub amount: Decimal, // USD amount for buys, token amount for sells\n    pub slippage_tolerance: Option\u003cDecimal\u003e,\n    pub client_id: Option\u003cString\u003e,\n}\n\n/// Order state in the system\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Order {\n    pub id: String,\n    pub token_id: String,\n    pub side: Side,\n    pub price: Decimal,\n    pub original_size: Decimal,\n    pub filled_size: Decimal,\n    pub remaining_size: Decimal,\n    pub status: OrderStatus,\n    pub order_type: OrderType,\n    pub created_at: DateTime\u003cUtc\u003e,\n    pub updated_at: DateTime\u003cUtc\u003e,\n    pub expiration: Option\u003cDateTime\u003cUtc\u003e\u003e,\n    pub client_id: Option\u003cString\u003e,\n}\n\n/// API credentials for authentication\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct ApiCredentials {\n    #[serde(rename = \"apiKey\")]\n    pub api_key: String,\n    pub secret: String,\n    pub passphrase: String,\n}\n\nimpl Default for ApiCredentials {\n    fn default() -\u003e Self {\n        Self {\n            api_key: String::new(),\n            secret: String::new(),\n            passphrase: String::new(),\n        }\n    }\n}\n\n/// Configuration for order creation\n#[derive(Debug, Clone)]\npub struct OrderOptions {\n    pub tick_size: Option\u003cDecimal\u003e,\n    pub neg_risk: Option\u003cbool\u003e,\n    pub fee_rate_bps: Option\u003cu32\u003e,\n}\n\n/// Extra arguments for order creation\n#[derive(Debug, Clone)]\npub struct ExtraOrderArgs {\n    pub fee_rate_bps: u32,\n    pub nonce: U256,\n    pub taker: String,\n}\n\nimpl Default for ExtraOrderArgs {\n    fn default() -\u003e Self {\n        Self {\n            fee_rate_bps: 0,\n            nonce: U256::ZERO,\n            taker: \"0x0000000000000000000000000000000000000000\".to_string(),\n        }\n    }\n}\n\n/// Market order arguments\n#[derive(Debug, Clone)]\npub struct MarketOrderArgs {\n    pub token_id: String,\n    pub amount: Decimal,\n}\n\n/// Signed order request ready for submission\n#[derive(Debug, Clone, Serialize, Deserialize)]\n#[serde(rename_all = \"camelCase\")]\npub struct SignedOrderRequest {\n    pub salt: u64,\n    pub maker: String,\n    pub signer: String,\n    pub taker: String,\n    pub token_id: String,\n    pub maker_amount: String,\n    pub taker_amount: String,\n    pub expiration: String,\n    pub nonce: String,\n    pub fee_rate_bps: String,\n    pub side: String,\n    pub signature_type: u8,\n    pub signature: String,\n}\n\n/// Post order wrapper\n#[derive(Debug, Serialize)]\n#[serde(rename_all = \"camelCase\")]\npub struct PostOrder {\n    pub order: SignedOrderRequest,\n    pub owner: String,\n    pub order_type: OrderType,\n}\n\nimpl PostOrder {\n    pub fn new(order: SignedOrderRequest, owner: String, order_type: OrderType) -\u003e Self {\n        Self {\n            order,\n            owner,\n            order_type,\n        }\n    }\n}\n\n/// Market information\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Market {\n    pub condition_id: String,\n    pub tokens: [Token; 2],\n    pub rewards: Rewards,\n    pub min_incentive_size: Option\u003cString\u003e,\n    pub max_incentive_spread: Option\u003cString\u003e,\n    pub active: bool,\n    pub closed: bool,\n    pub question_id: String,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub minimum_order_size: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub minimum_tick_size: Decimal,\n    pub description: String,\n    pub category: Option\u003cString\u003e,\n    pub end_date_iso: Option\u003cString\u003e,\n    pub game_start_time: Option\u003cString\u003e,\n    pub question: String,\n    pub market_slug: String,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub seconds_delay: Decimal,\n    pub icon: String,\n    pub fpmm: String,\n}\n\n/// Token information within a market\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Token {\n    pub token_id: String,\n    pub outcome: String,\n}\n\n/// Client configuration for PolyfillClient\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct ClientConfig {\n    /// Base URL for the API\n    pub base_url: String,\n    /// Chain ID for the network\n    pub chain_id: u64,\n    /// Private key for signing (optional)\n    pub private_key: Option\u003cString\u003e,\n    /// API credentials (optional)\n    pub api_credentials: Option\u003cApiCredentials\u003e,\n    /// Maximum slippage tolerance\n    pub max_slippage: Option\u003cDecimal\u003e,\n    /// Fee rate in basis points\n    pub fee_rate: Option\u003cDecimal\u003e,\n    /// Request timeout\n    pub timeout: Option\u003cstd::time::Duration\u003e,\n    /// Maximum number of connections\n    pub max_connections: Option\u003cusize\u003e,\n}\n\nimpl Default for ClientConfig {\n    fn default() -\u003e Self {\n        Self {\n            base_url: \"https://clob.polymarket.com\".to_string(),\n            chain_id: 137, // Polygon mainnet\n            private_key: None,\n            api_credentials: None,\n            timeout: Some(std::time::Duration::from_secs(30)),\n            max_connections: Some(100),\n            max_slippage: None,\n            fee_rate: None,\n        }\n    }\n}\n\n/// WebSocket authentication for Polymarket API\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct WssAuth {\n    /// User's Ethereum address\n    pub address: String,\n    /// EIP-712 signature\n    pub signature: String,\n    /// Unix timestamp\n    pub timestamp: u64,\n    /// Nonce for replay protection\n    pub nonce: String,\n}\n\n/// WebSocket subscription request\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct WssSubscription {\n    /// Authentication information\n    pub auth: WssAuth,\n    /// Array of markets (condition IDs) for USER channel\n    pub markets: Option\u003cVec\u003cString\u003e\u003e,\n    /// Array of asset IDs (token IDs) for MARKET channel\n    pub asset_ids: Option\u003cVec\u003cString\u003e\u003e,\n    /// Channel type: \"USER\" or \"MARKET\"\n    #[serde(rename = \"type\")]\n    pub channel_type: String,\n}\n\n/// WebSocket message types for streaming\n#[derive(Debug, Clone, Serialize, Deserialize)]\n#[serde(tag = \"type\")]\npub enum StreamMessage {\n    #[serde(rename = \"book_update\")]\n    BookUpdate {\n        data: OrderDelta,\n    },\n    #[serde(rename = \"trade\")]\n    Trade {\n        data: FillEvent,\n    },\n    #[serde(rename = \"order_update\")]\n    OrderUpdate {\n        data: Order,\n    },\n    #[serde(rename = \"heartbeat\")]\n    Heartbeat {\n        timestamp: DateTime\u003cUtc\u003e,\n    },\n    /// User channel events\n    #[serde(rename = \"user_order_update\")]\n    UserOrderUpdate {\n        data: Order,\n    },\n    #[serde(rename = \"user_trade\")]\n    UserTrade {\n        data: FillEvent,\n    },\n    /// Market channel events\n    #[serde(rename = \"market_book_update\")]\n    MarketBookUpdate {\n        data: OrderDelta,\n    },\n    #[serde(rename = \"market_trade\")]\n    MarketTrade {\n        data: FillEvent,\n    },\n}\n\n/// Subscription parameters for streaming\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Subscription {\n    pub token_ids: Vec\u003cString\u003e,\n    pub channels: Vec\u003cString\u003e,\n}\n\n/// WebSocket channel types\n#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]\npub enum WssChannelType {\n    #[serde(rename = \"USER\")]\n    User,\n    #[serde(rename = \"MARKET\")]\n    Market,\n}\n\nimpl WssChannelType {\n    pub fn as_str(\u0026self) -\u003e \u0026'static str {\n        match self {\n            WssChannelType::User =\u003e \"USER\",\n            WssChannelType::Market =\u003e \"MARKET\",\n        }\n    }\n}\n\n/// Price quote response\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Quote {\n    pub token_id: String,\n    pub side: Side,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    pub timestamp: DateTime\u003cUtc\u003e,\n}\n\n/// Balance information\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Balance {\n    pub token_id: String,\n    pub available: Decimal,\n    pub locked: Decimal,\n    pub total: Decimal,\n}\n\n/// Performance metrics for monitoring\n#[derive(Debug, Clone)]\npub struct Metrics {\n    pub orders_per_second: f64,\n    pub avg_latency_ms: f64,\n    pub error_rate: f64,\n    pub uptime_pct: f64,\n}\n\n// Type aliases for common patterns\npub type TokenId = String;\npub type OrderId = String;\npub type MarketId = String;\npub type ClientId = String;\n\n\n/// Parameters for querying open orders\n#[derive(Debug, Clone)]\npub struct OpenOrderParams {\n    pub id: Option\u003cString\u003e,\n    pub asset_id: Option\u003cString\u003e,\n    pub market: Option\u003cString\u003e,\n}\n\nimpl OpenOrderParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, \u0026String)\u003e {\n        let mut params = Vec::with_capacity(3);\n\n        if let Some(x) = \u0026self.id {\n            params.push((\"id\", x));\n        }\n\n        if let Some(x) = \u0026self.asset_id {\n            params.push((\"asset_id\", x));\n        }\n\n        if let Some(x) = \u0026self.market {\n            params.push((\"market\", x));\n        }\n        params\n    }\n}\n\n/// Parameters for querying trades\n#[derive(Debug, Clone)]\npub struct TradeParams {\n    pub id: Option\u003cString\u003e,\n    pub maker_address: Option\u003cString\u003e,\n    pub market: Option\u003cString\u003e,\n    pub asset_id: Option\u003cString\u003e,\n    pub before: Option\u003cu64\u003e,\n    pub after: Option\u003cu64\u003e,\n}\n\nimpl TradeParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, String)\u003e {\n        let mut params = Vec::with_capacity(6);\n\n        if let Some(x) = \u0026self.id {\n            params.push((\"id\", x.clone()));\n        }\n\n        if let Some(x) = \u0026self.asset_id {\n            params.push((\"asset_id\", x.clone()));\n        }\n\n        if let Some(x) = \u0026self.market {\n            params.push((\"market\", x.clone()));\n        }\n        \n        if let Some(x) = \u0026self.maker_address {\n            params.push((\"maker_address\", x.clone()));\n        }\n        \n        if let Some(x) = \u0026self.before {\n            params.push((\"before\", x.to_string()));\n        }\n        \n        if let Some(x) = \u0026self.after {\n            params.push((\"after\", x.to_string()));\n        }\n        \n        params\n    }\n}\n\n/// Open order information\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct OpenOrder {\n    pub associate_trades: Vec\u003cString\u003e,\n    pub id: String,\n    pub status: String,\n    pub market: String,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub original_size: Decimal,\n    pub outcome: String,\n    pub maker_address: String,\n    pub owner: String,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    pub side: Side,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size_matched: Decimal,\n    pub asset_id: String,\n    #[serde(deserialize_with = \"crate::decode::deserializers::number_from_string\")]\n    pub expiration: u64,\n    #[serde(rename = \"type\")]\n    pub order_type: OrderType,\n    #[serde(deserialize_with = \"crate::decode::deserializers::number_from_string\")]\n    pub created_at: u64,\n}\n\n\n/// Balance allowance information\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BalanceAllowance {\n    pub asset_id: String,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub balance: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub allowance: Decimal,\n}\n\n/// Parameters for balance allowance queries (from reference implementation)\n#[derive(Default)]\npub struct BalanceAllowanceParams {\n    pub asset_type: Option\u003cAssetType\u003e,\n    pub token_id: Option\u003cString\u003e,\n    pub signature_type: Option\u003cu8\u003e,\n}\n\nimpl BalanceAllowanceParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, String)\u003e {\n        let mut params = Vec::with_capacity(3);\n\n        if let Some(x) = \u0026self.asset_type {\n            params.push((\"asset_type\", x.to_string()));\n        }\n\n        if let Some(x) = \u0026self.token_id {\n            params.push((\"token_id\", x.to_string()));\n        }\n\n        if let Some(x) = \u0026self.signature_type {\n            params.push((\"signature_type\", x.to_string()));\n        }\n        params\n    }\n\n    pub fn set_signature_type(\u0026mut self, s: u8) {\n        self.signature_type = Some(s);\n    }\n}\n\n/// Asset type enum for balance allowance queries\npub enum AssetType {\n    COLLATERAL,\n    CONDITIONAL,\n}\n\nimpl ToString for AssetType {\n    fn to_string(\u0026self) -\u003e String {\n        match self {\n            AssetType::COLLATERAL =\u003e \"COLLATERAL\".to_string(),\n            AssetType::CONDITIONAL =\u003e \"CONDITIONAL\".to_string(),\n        }\n    }\n}\n\n/// Notification preferences\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct NotificationParams {\n    pub signature: String,\n    pub timestamp: u64,\n}\n\n/// Batch midpoint request\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BatchMidpointRequest {\n    pub token_ids: Vec\u003cString\u003e,\n}\n\n/// Batch midpoint response\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BatchMidpointResponse {\n    pub midpoints: std::collections::HashMap\u003cString, Option\u003cDecimal\u003e\u003e,\n}\n\n/// Batch price request\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BatchPriceRequest {\n    pub token_ids: Vec\u003cString\u003e,\n}\n\n/// Price information for a token\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct TokenPrice {\n    pub token_id: String,\n    #[serde(skip_serializing_if = \"Option::is_none\")]\n    pub bid: Option\u003cDecimal\u003e,\n    #[serde(skip_serializing_if = \"Option::is_none\")]\n    pub ask: Option\u003cDecimal\u003e,\n    #[serde(skip_serializing_if = \"Option::is_none\")]\n    pub mid: Option\u003cDecimal\u003e,\n}\n\n/// Batch price response\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BatchPriceResponse {\n    pub prices: Vec\u003cTokenPrice\u003e,\n}\n\n// Additional types for API compatibility with reference implementation\n#[derive(Debug, Deserialize)]\npub struct ApiKeysResponse {\n    #[serde(rename = \"apiKeys\")]\n    pub api_keys: Vec\u003cString\u003e,\n}\n\n#[derive(Debug, Deserialize)]\npub struct MidpointResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub mid: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct PriceResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct SpreadResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub spread: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct TickSizeResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub minimum_tick_size: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct NegRiskResponse {\n    pub neg_risk: bool,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct BookParams {\n    pub token_id: String,\n    pub side: Side,\n}\n\n#[derive(Debug, Deserialize)]\npub struct OrderBookSummary {\n    pub market: String,\n    pub asset_id: String,\n    pub hash: String,\n    #[serde(deserialize_with = \"crate::decode::deserializers::number_from_string\")]\n    pub timestamp: u64,\n    pub bids: Vec\u003cOrderSummary\u003e,\n    pub asks: Vec\u003cOrderSummary\u003e,\n}\n\n#[derive(Debug, Deserialize)]\npub struct OrderSummary {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size: Decimal,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct MarketsResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub limit: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub count: Decimal,\n    pub next_cursor: Option\u003cString\u003e,\n    pub data: Vec\u003cMarket\u003e,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct SimplifiedMarketsResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub limit: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub count: Decimal,\n    pub next_cursor: Option\u003cString\u003e,\n    pub data: Vec\u003cSimplifiedMarket\u003e,\n}\n\n/// Simplified market structure for batch operations\n#[derive(Debug, Serialize, Deserialize)]\npub struct SimplifiedMarket {\n    pub condition_id: String,\n    pub tokens: [Token; 2],\n    pub rewards: Rewards,\n    pub min_incentive_size: Option\u003cString\u003e,\n    pub max_incentive_spread: Option\u003cString\u003e,\n    pub active: bool,\n    pub closed: bool,\n}\n\n/// Rewards structure for markets\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Rewards {\n    pub rates: Option\u003cserde_json::Value\u003e,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub min_size: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub max_spread: Decimal,\n    pub event_start_date: Option\u003cString\u003e,\n    pub event_end_date: Option\u003cString\u003e,\n    #[serde(skip_serializing_if = \"Option::is_none\")]\n    pub in_game_multiplier: Option\u003cDecimal\u003e,\n    #[serde(skip_serializing_if = \"Option::is_none\")]\n    pub reward_epoch: Option\u003cDecimal\u003e,\n}\n\n// For compatibility with reference implementation\npub type ClientResult\u003cT\u003e = anyhow::Result\u003cT\u003e;\n\n/// Result type used throughout the client\npub type Result\u003cT\u003e = std::result::Result\u003cT, crate::errors::PolyfillError\u003e; 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Utility functions for the Polymarket client\n//!\n//! This module contains optimized utility functions for performance-critical\n//! operations in trading environments.\n\nuse crate::errors::{PolyfillError, Result};\nuse alloy_primitives::{Address, U256};\nuse base64::{engine::general_purpose::URL_SAFE, Engine};\nuse chrono::{DateTime, Utc};\nuse hmac::{Hmac, Mac};\nuse rust_decimal::Decimal;\nuse serde::Serialize;\nuse sha2::Sha256;\nuse std::str::FromStr;\nuse std::time::{Duration, SystemTime, UNIX_EPOCH};\nuse ::url::Url;\n\ntype HmacSha256 = Hmac\u003cSha256\u003e;\n\n/// High-precision timestamp utilities\npub mod time {\n    use super::*;\n\n    /// Get current Unix timestamp in seconds\n    #[inline]\n    pub fn now_secs() -\u003e u64 {\n        SystemTime::now()\n            .duration_since(UNIX_EPOCH)\n            .expect(\"Time went backwards\")\n            .as_secs()\n    }\n\n    /// Get current Unix timestamp in milliseconds\n    #[inline]\n    pub fn now_millis() -\u003e u64 {\n        SystemTime::now()\n            .duration_since(UNIX_EPOCH)\n            .expect(\"Time went backwards\")\n            .as_millis() as u64\n    }\n\n    /// Get current Unix timestamp in microseconds\n    #[inline]\n    pub fn now_micros() -\u003e u64 {\n        SystemTime::now()\n            .duration_since(UNIX_EPOCH)\n            .expect(\"Time went backwards\")\n            .as_micros() as u64\n    }\n\n    /// Get current Unix timestamp in nanoseconds\n    #[inline]\n    pub fn now_nanos() -\u003e u128 {\n        SystemTime::now()\n            .duration_since(UNIX_EPOCH)\n            .expect(\"Time went backwards\")\n            .as_nanos()\n    }\n\n    /// Convert DateTime to Unix timestamp in seconds\n    #[inline]\n    pub fn datetime_to_secs(dt: DateTime\u003cUtc\u003e) -\u003e u64 {\n        dt.timestamp() as u64\n    }\n\n    /// Convert Unix timestamp to DateTime\n    #[inline]\n    pub fn secs_to_datetime(timestamp: u64) -\u003e DateTime\u003cUtc\u003e {\n        DateTime::from_timestamp(timestamp as i64, 0)\n            .unwrap_or_else(|| Utc::now())\n    }\n}\n\n/// Cryptographic utilities for signing and authentication\npub mod crypto {\n    use super::*;\n\n    /// Build HMAC-SHA256 signature for API authentication\n    pub fn build_hmac_signature\u003cT\u003e(\n        secret: \u0026str,\n        timestamp: u64,\n        method: \u0026str,\n        path: \u0026str,\n        body: Option\u003c\u0026T\u003e,\n    ) -\u003e Result\u003cString\u003e\n    where\n        T: ?Sized + Serialize,\n    {\n        let decoded = URL_SAFE\n            .decode(secret)\n            .map_err(|e| PolyfillError::config(format!(\"Invalid secret format: {}\", e)))?;\n\n        let message = match body {\n            None =\u003e format!(\"{timestamp}{method}{path}\"),\n            Some(data) =\u003e {\n                let json = serde_json::to_string(data)?;\n                format!(\"{timestamp}{method}{path}{json}\")\n            }\n        };\n\n        let mut mac = HmacSha256::new_from_slice(\u0026decoded)\n            .map_err(|e| PolyfillError::internal(\"HMAC initialization failed\", e))?;\n        \n        mac.update(message.as_bytes());\n        let result = mac.finalize();\n\n        Ok(URL_SAFE.encode(result.into_bytes()))\n    }\n\n    /// Generate a secure random nonce\n    pub fn generate_nonce() -\u003e U256 {\n        use rand::RngCore;\n        let mut rng = rand::thread_rng();\n        let mut bytes = [0u8; 32];\n        rng.fill_bytes(\u0026mut bytes);\n        U256::from_be_bytes(bytes)\n    }\n\n    /// Generate a secure random salt\n    pub fn generate_salt() -\u003e u64 {\n        use rand::RngCore;\n        let mut rng = rand::thread_rng();\n        rng.next_u64()\n    }\n}\n\n/// Price and size calculation utilities\npub mod math {\n    use super::*;\n    use rust_decimal::prelude::*;\n    use crate::types::{Price, Qty, SCALE_FACTOR};\n\n    // ========================================================================\n    // LEGACY DECIMAL FUNCTIONS (for backward compatibility)\n    // ========================================================================\n    // \n    // These are kept for API compatibility, but internally we should use\n    // the fixed-point versions below for better performance.\n\n    /// Round price to tick size (LEGACY - use fixed-point version when possible)\n    #[inline]\n    pub fn round_to_tick(price: Decimal, tick_size: Decimal) -\u003e Decimal {\n        if tick_size.is_zero() {\n            return price;\n        }\n        (price / tick_size).round() * tick_size\n    }\n\n    /// Calculate notional value (price * size) (LEGACY - use fixed-point version when possible)\n    #[inline]\n    pub fn notional(price: Decimal, size: Decimal) -\u003e Decimal {\n        price * size\n    }\n\n    /// Calculate spread as percentage (LEGACY - use fixed-point version when possible)\n    #[inline]\n    pub fn spread_pct(bid: Decimal, ask: Decimal) -\u003e Option\u003cDecimal\u003e {\n        if bid.is_zero() || ask \u003c= bid {\n            return None;\n        }\n        Some((ask - bid) / bid * Decimal::from(100))\n    }\n\n    /// Calculate mid price (LEGACY - use fixed-point version when possible)\n    #[inline]\n    pub fn mid_price(bid: Decimal, ask: Decimal) -\u003e Option\u003cDecimal\u003e {\n        if bid.is_zero() || ask.is_zero() || ask \u003c= bid {\n            return None;\n        }\n        Some((bid + ask) / Decimal::from(2))\n    }\n\n    // ========================================================================\n    // HIGH-PERFORMANCE FIXED-POINT FUNCTIONS\n    // ========================================================================\n    //\n    // These functions operate on our internal Price/Qty types and are\n    // optimized for maximum performance. They avoid all Decimal operations\n    // and memory allocations.\n    //\n    // Performance comparison (approximate):\n    // - Decimal operations: 20-100ns + allocation overhead\n    // - Fixed-point operations: 1-5ns, no allocations\n    //\n    // That's a 10-50x speedup on the critical path!\n\n    /// Round price to tick size (FAST VERSION)\n    /// \n    /// This is much faster than the Decimal version because it's just\n    /// integer division and multiplication.\n    /// \n    /// Example: round_to_tick_fast(6543, 10) = 6540 (rounds to nearest 10 ticks)\n    #[inline]\n    pub fn round_to_tick_fast(price_ticks: Price, tick_size_ticks: Price) -\u003e Price {\n        if tick_size_ticks == 0 {\n            return price_ticks;\n        }\n        // Integer division automatically truncates, then multiply back\n        // For proper rounding, we add half the tick size before dividing\n        let half_tick = tick_size_ticks / 2;\n        ((price_ticks + half_tick) / tick_size_ticks) * tick_size_ticks\n    }\n\n    /// Calculate notional value (price * size) (FAST VERSION)\n    /// \n    /// Returns the result in the same scale as our quantities.\n    /// This avoids the expensive Decimal multiplication.\n    /// \n    /// Example: notional_fast(6543, 1000000) = 6543000000 (representing $654.30)\n    #[inline]\n    pub fn notional_fast(price_ticks: Price, size_units: Qty) -\u003e i64 {\n        // Convert price to i64 to avoid overflow\n        let price_i64 = price_ticks as i64;\n        // Multiply and scale appropriately\n        // Both price and size are scaled by SCALE_FACTOR, so result is scaled by SCALE_FACTOR^2\n        // We divide by SCALE_FACTOR to get back to normal scale\n        (price_i64 * size_units) / SCALE_FACTOR\n    }\n\n    /// Calculate spread as percentage (FAST VERSION)\n    /// \n    /// Returns the spread as a percentage in basis points (1/100th of a percent).\n    /// This avoids floating-point arithmetic entirely.\n    /// \n    /// Example: spread_pct_fast(6500, 6700) = Some(307) (representing 3.07%)\n    #[inline]\n    pub fn spread_pct_fast(bid_ticks: Price, ask_ticks: Price) -\u003e Option\u003cu32\u003e {\n        if bid_ticks == 0 || ask_ticks \u003c= bid_ticks {\n            return None;\n        }\n        \n        let spread = ask_ticks - bid_ticks;\n        // Calculate percentage in basis points (multiply by 10000 for 4 decimal places)\n        // We use u64 for intermediate calculation to avoid overflow\n        let spread_bps = ((spread as u64) * 10000) / (bid_ticks as u64);\n        \n        // Convert back to u32 (should always fit since spreads are typically small)\n        Some(spread_bps as u32)\n    }\n\n    /// Calculate mid price (FAST VERSION)\n    /// \n    /// Returns the midpoint between bid and ask in ticks.\n    /// Much faster than the Decimal version.\n    /// \n    /// Example: mid_price_fast(6500, 6700) = Some(6600)\n    #[inline]\n    pub fn mid_price_fast(bid_ticks: Price, ask_ticks: Price) -\u003e Option\u003cPrice\u003e {\n        if bid_ticks == 0 || ask_ticks == 0 || ask_ticks \u003c= bid_ticks {\n            return None;\n        }\n        \n        // Use u64 to avoid overflow in addition\n        let sum = (bid_ticks as u64) + (ask_ticks as u64);\n        Some((sum / 2) as Price)\n    }\n\n    /// Calculate spread in ticks (FAST VERSION)\n    /// \n    /// Simple subtraction - much faster than Decimal operations.\n    /// \n    /// Example: spread_fast(6500, 6700) = Some(200) (representing $0.02 spread)\n    #[inline]\n    pub fn spread_fast(bid_ticks: Price, ask_ticks: Price) -\u003e Option\u003cPrice\u003e {\n        if ask_ticks \u003c= bid_ticks {\n            return None;\n        }\n        Some(ask_ticks - bid_ticks)\n    }\n\n    /// Check if price is within valid range (FAST VERSION)\n    /// \n    /// Much faster than converting to Decimal and back.\n    /// \n    /// Example: is_valid_price_fast(6543, 1, 10000) = true\n    #[inline]\n    pub fn is_valid_price_fast(price_ticks: Price, min_tick: Price, max_tick: Price) -\u003e bool {\n        price_ticks \u003e= min_tick \u0026\u0026 price_ticks \u003c= max_tick\n    }\n\n    /// Convert decimal to token units (6 decimal places)\n    #[inline]\n    pub fn decimal_to_token_units(amount: Decimal) -\u003e u64 {\n        let scaled = amount * Decimal::from(1_000_000);\n        scaled.to_u64().unwrap_or(0)\n    }\n\n    /// Convert token units back to decimal\n    #[inline]\n    pub fn token_units_to_decimal(units: u64) -\u003e Decimal {\n        Decimal::from(units) / Decimal::from(1_000_000)\n    }\n\n    /// Check if price is within valid range [tick_size, 1-tick_size]\n    #[inline]\n    pub fn is_valid_price(price: Decimal, tick_size: Decimal) -\u003e bool {\n        price \u003e= tick_size \u0026\u0026 price \u003c= (Decimal::ONE - tick_size)\n    }\n\n    /// Calculate maximum slippage for market order\n    pub fn calculate_slippage(\n        target_price: Decimal,\n        executed_price: Decimal,\n        side: crate::types::Side,\n    ) -\u003e Decimal {\n        match side {\n            crate::types::Side::BUY =\u003e {\n                if executed_price \u003e target_price {\n                    (executed_price - target_price) / target_price\n                } else {\n                    Decimal::ZERO\n                }\n            }\n            crate::types::Side::SELL =\u003e {\n                if executed_price \u003c target_price {\n                    (target_price - executed_price) / target_price\n                } else {\n                    Decimal::ZERO\n                }\n            }\n        }\n    }\n}\n\n/// Network and retry utilities\npub mod retry {\n    use super::*;\n    use std::future::Future;\n    use tokio::time::{sleep, Duration};\n\n    /// Exponential backoff configuration\n    #[derive(Debug, Clone)]\n    pub struct RetryConfig {\n        pub max_attempts: usize,\n        pub initial_delay: Duration,\n        pub max_delay: Duration,\n        pub backoff_factor: f64,\n        pub jitter: bool,\n    }\n\n    impl Default for RetryConfig {\n        fn default() -\u003e Self {\n            Self {\n                max_attempts: 3,\n                initial_delay: Duration::from_millis(100),\n                max_delay: Duration::from_secs(10),\n                backoff_factor: 2.0,\n                jitter: true,\n            }\n        }\n    }\n\n    /// Retry a future with exponential backoff\n    pub async fn with_retry\u003cF, Fut, T\u003e(\n        config: \u0026RetryConfig,\n        mut operation: F,\n    ) -\u003e Result\u003cT\u003e\n    where\n        F: FnMut() -\u003e Fut,\n        Fut: Future\u003cOutput = Result\u003cT\u003e\u003e,\n    {\n        let mut delay = config.initial_delay;\n        let mut last_error = None;\n\n        for attempt in 0..config.max_attempts {\n            match operation().await {\n                Ok(result) =\u003e return Ok(result),\n                Err(err) =\u003e {\n                    last_error = Some(err.clone());\n                    \n                    if !err.is_retryable() || attempt == config.max_attempts - 1 {\n                        return Err(err);\n                    }\n\n                    // Add jitter if enabled\n                    let actual_delay = if config.jitter {\n                        let jitter_factor = rand::random::\u003cf64\u003e() * 0.1; // ±10%\n                        let jitter = 1.0 + (jitter_factor - 0.05);\n                        Duration::from_nanos((delay.as_nanos() as f64 * jitter) as u64)\n                    } else {\n                        delay\n                    };\n\n                    sleep(actual_delay).await;\n\n                    // Exponential backoff\n                    delay = std::cmp::min(\n                        Duration::from_nanos((delay.as_nanos() as f64 * config.backoff_factor) as u64),\n                        config.max_delay,\n                    );\n                }\n            }\n        }\n\n        Err(last_error.unwrap_or_else(|| PolyfillError::internal(\"Retry loop failed\", std::io::Error::new(std::io::ErrorKind::Other, \"No error captured\"))))\n    }\n}\n\n/// Address and token ID utilities\npub mod address {\n    use super::*;\n\n    /// Validate and parse Ethereum address\n    pub fn parse_address(addr: \u0026str) -\u003e Result\u003cAddress\u003e {\n        Address::from_str(addr)\n            .map_err(|e| PolyfillError::validation(format!(\"Invalid address format: {}\", e)))\n    }\n\n    /// Validate token ID format\n    pub fn validate_token_id(token_id: \u0026str) -\u003e Result\u003c()\u003e {\n        if token_id.is_empty() {\n            return Err(PolyfillError::validation(\"Token ID cannot be empty\"));\n        }\n\n        // Token IDs should be numeric strings\n        if !token_id.chars().all(|c| c.is_ascii_digit()) {\n            return Err(PolyfillError::validation(\"Token ID must be numeric\"));\n        }\n\n        Ok(())\n    }\n\n    /// Convert token ID to U256\n    pub fn token_id_to_u256(token_id: \u0026str) -\u003e Result\u003cU256\u003e {\n        validate_token_id(token_id)?;\n        U256::from_str_radix(token_id, 10)\n            .map_err(|e| PolyfillError::validation(format!(\"Invalid token ID: {}\", e)))\n    }\n}\n\n/// URL building utilities\npub mod url {\n    use super::*;\n\n    /// Build API endpoint URL\n    pub fn build_endpoint(base_url: \u0026str, path: \u0026str) -\u003e Result\u003cString\u003e {\n        let base = base_url.trim_end_matches('/');\n        let path = path.trim_start_matches('/');\n        Ok(format!(\"{}/{}\", base, path))\n    }\n\n    /// Add query parameters to URL\n    pub fn add_query_params(\n        mut url: url::Url,\n        params: \u0026[(\u0026str, \u0026str)],\n    ) -\u003e url::Url {\n        {\n            let mut query_pairs = url.query_pairs_mut();\n            for (key, value) in params {\n                query_pairs.append_pair(key, value);\n            }\n        }\n        url\n    }\n}\n\n/// Rate limiting utilities\npub mod rate_limit {\n    use super::*;\n    use std::sync::{Arc, Mutex};\n\n    /// Simple token bucket rate limiter\n    #[derive(Debug)]\n    pub struct TokenBucket {\n        capacity: usize,\n        tokens: Arc\u003cMutex\u003cusize\u003e\u003e,\n        refill_rate: Duration,\n        last_refill: Arc\u003cMutex\u003cSystemTime\u003e\u003e,\n    }\n\n    impl TokenBucket {\n        pub fn new(capacity: usize, refill_per_second: usize) -\u003e Self {\n            Self {\n                capacity,\n                tokens: Arc::new(Mutex::new(capacity)),\n                refill_rate: Duration::from_secs(1) / refill_per_second as u32,\n                last_refill: Arc::new(Mutex::new(SystemTime::now())),\n            }\n        }\n\n        /// Try to consume a token, return true if successful\n        pub fn try_consume(\u0026self) -\u003e bool {\n            self.refill();\n            \n            let mut tokens = self.tokens.lock().unwrap();\n            if *tokens \u003e 0 {\n                *tokens -= 1;\n                true\n            } else {\n                false\n            }\n        }\n\n        fn refill(\u0026self) {\n            let now = SystemTime::now();\n            let mut last_refill = self.last_refill.lock().unwrap();\n            let elapsed = now.duration_since(*last_refill).unwrap_or_default();\n            \n            if elapsed \u003e= self.refill_rate {\n                let tokens_to_add = elapsed.as_nanos() / self.refill_rate.as_nanos();\n                let mut tokens = self.tokens.lock().unwrap();\n                *tokens = std::cmp::min(self.capacity, *tokens + tokens_to_add as usize);\n                *last_refill = now;\n            }\n        }\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_round_to_tick() {\n        use math::round_to_tick;\n        \n        let price = Decimal::from_str(\"0.567\").unwrap();\n        let tick = Decimal::from_str(\"0.01\").unwrap();\n        let rounded = round_to_tick(price, tick);\n        assert_eq!(rounded, Decimal::from_str(\"0.57\").unwrap());\n    }\n\n    #[test]\n    fn test_mid_price() {\n        use math::mid_price;\n        \n        let bid = Decimal::from_str(\"0.50\").unwrap();\n        let ask = Decimal::from_str(\"0.52\").unwrap();\n        let mid = mid_price(bid, ask).unwrap();\n        assert_eq!(mid, Decimal::from_str(\"0.51\").unwrap());\n    }\n\n    #[test]\n    fn test_token_units_conversion() {\n        use math::{decimal_to_token_units, token_units_to_decimal};\n        \n        let amount = Decimal::from_str(\"1.234567\").unwrap();\n        let units = decimal_to_token_units(amount);\n        assert_eq!(units, 1_234_567);\n        \n        let back = token_units_to_decimal(units);\n        assert_eq!(back, amount);\n    }\n\n    #[test]\n    fn test_address_validation() {\n        use address::parse_address;\n        \n        let valid = \"0x1234567890123456789012345678901234567890\";\n        assert!(parse_address(valid).is_ok());\n        \n        let invalid = \"invalid_address\";\n        assert!(parse_address(invalid).is_err());\n    }\n} 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Common utilities for integration tests\n\nuse polyfill_rs::{ClobClient, Result};\nuse std::env;\nuse std::time::Duration;\n\n/// Test configuration loaded from environment variables\n#[derive(Debug, Clone)]\npub struct TestConfig {\n    pub host: String,\n    pub chain_id: u64,\n    pub private_key: Option\u003cString\u003e,\n    pub api_key: Option\u003cString\u003e,\n    pub api_secret: Option\u003cString\u003e,\n    pub api_passphrase: Option\u003cString\u003e,\n    pub test_timeout: Duration,\n}\n\nimpl Default for TestConfig {\n    fn default() -\u003e Self {\n        Self {\n            host: env::var(\"POLYMARKET_HOST\").unwrap_or_else(|_| \"https://clob.polymarket.com\".to_string()),\n            chain_id: env::var(\"POLYMARKET_CHAIN_ID\")\n                .unwrap_or_else(|_| \"137\".to_string())\n                .parse()\n                .unwrap_or(137),\n            private_key: env::var(\"POLYMARKET_PRIVATE_KEY\").ok(),\n            api_key: env::var(\"POLYMARKET_API_KEY\").ok(),\n            api_secret: env::var(\"POLYMARKET_API_SECRET\").ok(),\n            api_passphrase: env::var(\"POLYMARKET_API_PASSPHRASE\").ok(),\n            test_timeout: Duration::from_secs(30),\n        }\n    }\n}\n\nimpl TestConfig {\n    /// Check if we have authentication credentials\n    pub fn has_auth(\u0026self) -\u003e bool {\n        self.private_key.is_some()\n    }\n\n    /// Check if we have API credentials\n    pub fn has_api_creds(\u0026self) -\u003e bool {\n        self.api_key.is_some() \u0026\u0026 self.api_secret.is_some() \u0026\u0026 self.api_passphrase.is_some()\n    }\n\n    /// Create a basic client for testing\n    pub fn create_basic_client(\u0026self) -\u003e ClobClient {\n        ClobClient::new(\u0026self.host)\n    }\n\n    /// Create an authenticated client for testing\n    pub fn create_auth_client(\u0026self) -\u003e Result\u003cClobClient\u003e {\n        let private_key = self.private_key.as_ref()\n            .ok_or_else(|| polyfill_rs::PolyfillError::auth(\"No private key provided\", polyfill_rs::errors::AuthErrorKind::InvalidCredentials))?;\n        \n        Ok(ClobClient::with_l1_headers(\u0026self.host, private_key, self.chain_id))\n    }\n\n    /// Print test configuration (without sensitive data)\n    pub fn print_config(\u0026self) {\n        println!(\"Test Configuration:\");\n        println!(\"  Host: {}\", self.host);\n        println!(\"  Chain ID: {}\", self.chain_id);\n        println!(\"  Has Auth: {}\", self.has_auth());\n        println!(\"  Has API Creds: {}\", self.has_api_creds());\n        println!(\"  Timeout: {:?}\", self.test_timeout);\n    }\n}\n\n/// Test utilities for common operations\npub struct TestUtils;\n\nimpl TestUtils {\n    /// Get a valid token_id for testing\n    pub async fn get_test_token_id(client: \u0026ClobClient) -\u003e Result\u003cString\u003e {\n        let markets = client.get_sampling_markets(None).await?;\n        if markets.data.is_empty() {\n            return Err(polyfill_rs::PolyfillError::internal_simple(\"No markets available for testing\"));\n        }\n        \n        let token_id = markets.data[0].tokens[0].token_id.clone();\n        println!(\"Using test token_id: {}\", token_id);\n        Ok(token_id)\n    }\n\n    /// Wait for a condition with timeout\n    pub async fn wait_for\u003cF, Fut\u003e(mut condition: F, timeout: Duration) -\u003e Result\u003c()\u003e\n    where\n        F: FnMut() -\u003e Fut,\n        Fut: std::future::Future\u003cOutput = Result\u003cbool\u003e\u003e,\n    {\n        let start = std::time::Instant::now();\n        let check_interval = Duration::from_millis(100);\n\n        while start.elapsed() \u003c timeout {\n            if condition().await? {\n                return Ok(());\n            }\n            tokio::time::sleep(check_interval).await;\n        }\n\n        Err(polyfill_rs::PolyfillError::timeout(\n            timeout,\n            \"Condition not met within timeout\".to_string(),\n        ))\n    }\n\n    /// Measure execution time of an async operation\n    pub async fn measure_time\u003cF, Fut, T\u003e(operation: F) -\u003e (T, Duration)\n    where\n        F: FnOnce() -\u003e Fut,\n        Fut: std::future::Future\u003cOutput = T\u003e,\n    {\n        let start = std::time::Instant::now();\n        let result = operation().await;\n        let duration = start.elapsed();\n        (result, duration)\n    }\n\n    /// Assert that an operation completes within a reasonable time\n    pub async fn assert_timely\u003cF, Fut, T\u003e(operation: F, max_duration: Duration) -\u003e Result\u003cT\u003e\n    where\n        F: FnOnce() -\u003e Fut,\n        Fut: std::future::Future\u003cOutput = Result\u003cT\u003e\u003e,\n    {\n        let (result, duration) = Self::measure_time(|| async {\n            operation().await\n        }).await;\n\n        if duration \u003e max_duration {\n            return Err(polyfill_rs::PolyfillError::timeout(\n                duration,\n                format!(\"Operation took too long: {:?} \u003e {:?}\", duration, max_duration),\n            ));\n        }\n\n        println!(\"Operation completed in {:?}\", duration);\n        result\n    }\n}\n\n/// Test result reporting\npub struct TestReporter;\n\nimpl TestReporter {\n    /// Report test success\n    pub fn success(test_name: \u0026str) {\n        println!(\"{} passed\", test_name);\n    }\n\n    /// Report test failure\n    pub fn failure(test_name: \u0026str, error: \u0026dyn std::error::Error) {\n        println!(\"{} failed: {}\", test_name, error);\n    }\n\n    /// Report test skip\n    pub fn skip(test_name: \u0026str, reason: \u0026str) {\n        println!(\"{} skipped: {}\", test_name, reason);\n    }\n\n    /// Report test performance\n    pub fn performance(test_name: \u0026str, duration: Duration) {\n        println!(\"{} completed in {:?}\", test_name, duration);\n    }\n} ","traces":[],"covered":0,"coverable":0}]};
-        var previousData = {"files":[{"path":["/","Users","juliustranquilli","personal","polyfill-rs","benches","book_updates.rs"],"content":"//! Benchmark for order book updates\n//!\n//! This benchmark measures the performance of order book operations\n//! including delta application, price updates, and book maintenance.\n\nuse criterion::{black_box, criterion_group, criterion_main, Criterion};\nuse polyfill_rs::{\n    book::OrderBook,\n    types::{OrderDelta, Side},\n};\nuse rust_decimal::{Decimal, Decimal as RustDecimal};\nuse rust_decimal_macros::dec;\nuse std::time::Instant;\n\nfn bench_book_creation(c: \u0026mut Criterion) {\n    c.bench_function(\"book_creation\", |b| {\n        b.iter(|| {\n            let _book = OrderBook::new(\n                black_box(\"test_token\".to_string()),\n                black_box(100),\n            );\n        });\n    });\n}\n\nfn bench_delta_application(c: \u0026mut Criterion) {\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate with some levels\n    for i in 1..=10 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: Side::BUY,\n            price,\n            size: dec!(100),\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"delta_application\", |b| {\n        b.iter(|| {\n            let delta = OrderDelta {\n                token_id: \"test_token\".to_string(),\n                timestamp: chrono::Utc::now(),\n                side: black_box(Side::SELL),\n                price: black_box(dec!(0.52)),\n                size: black_box(dec!(50)),\n                sequence: black_box(11),\n            };\n            book.apply_delta(delta).unwrap();\n        });\n    });\n}\n\nfn bench_best_price_lookup(c: \u0026mut Criterion) {\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate with levels\n    for i in 1..=20 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            price,\n            size: dec!(100),\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"best_price_lookup\", |b| {\n        b.iter(|| {\n            let _bid = book.best_bid();\n            let _ask = book.best_ask();\n            let _spread = book.spread();\n            let _mid = book.mid_price();\n        });\n    });\n}\n\nfn bench_book_snapshot(c: \u0026mut Criterion) {\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate with levels\n    for i in 1..=50 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            price,\n            size: dec!(100),\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"book_snapshot\", |b| {\n        b.iter(|| {\n            let _snapshot = book.snapshot();\n        });\n    });\n}\n\nfn bench_market_impact_calculation(c: \u0026mut Criterion) {\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate with levels\n    for i in 1..=30 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            price,\n            size: dec!(100),\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"market_impact_calculation\", |b| {\n        b.iter(|| {\n            let _impact = book.calculate_market_impact(Side::BUY, dec!(50));\n        });\n    });\n}\n\nfn bench_high_frequency_updates(c: \u0026mut Criterion) {\n    c.bench_function(\"high_frequency_updates\", |b| {\n        b.iter(|| {\n            let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n            let start_time = Instant::now();\n            \n            // Simulate high-frequency updates\n            for i in 1..=1000 {\n                let price = Decimal::from(500 + (i % 100)) / Decimal::from(1000);\n                let size = Decimal::from(10 + (i % 90));\n                let delta = OrderDelta {\n                    token_id: \"test_token\".to_string(),\n                    timestamp: chrono::Utc::now(),\n                    side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n                    price,\n                    size,\n                    sequence: i,\n                };\n                book.apply_delta(delta).unwrap();\n                \n                // Check prices every 10 updates\n                if i % 10 == 0 {\n                    let _bid = book.best_bid();\n                    let _ask = book.best_ask();\n                }\n            }\n            \n            let duration = start_time.elapsed();\n            black_box(duration);\n        });\n    });\n}\n\nfn bench_concurrent_access(c: \u0026mut Criterion) {\n    use std::sync::Arc;\n    use tokio::sync::RwLock;\n    \n    c.bench_function(\"concurrent_access\", |b| {\n        b.iter(|| {\n            let book = Arc::new(RwLock::new(OrderBook::new(\"test_token\".to_string(), 100)));\n            let book_clone = book.clone();\n            \n            // Simulate concurrent reads and writes\n            let rt = tokio::runtime::Runtime::new().unwrap();\n            rt.block_on(async {\n                let mut tasks = Vec::new();\n                \n                // Spawn writer tasks\n                for i in 1..=10 {\n                    let book = book.clone();\n                    tasks.push(tokio::spawn(async move {\n                        let price = Decimal::from(50 + i) / Decimal::from(100);\n                        let delta = OrderDelta {\n                            token_id: \"test_token\".to_string(),\n                            timestamp: chrono::Utc::now(),\n                            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n                            price,\n                            size: dec!(100),\n                            sequence: i,\n                        };\n                        let mut book = book.write().await;\n                        book.apply_delta(delta).unwrap();\n                    }));\n                }\n                \n                // Spawn reader tasks\n                for _ in 0..20 {\n                    let book = book_clone.clone();\n                    tasks.push(tokio::spawn(async move {\n                        let book = book.read().await;\n                        let _bid = book.best_bid();\n                        let _ask = book.best_ask();\n                    }));\n                }\n                \n                // Wait for all tasks\n                for task in tasks {\n                    let _ = task.await;\n                }\n            });\n        });\n    });\n}\n\ncriterion_group!(\n    benches,\n    bench_book_creation,\n    bench_delta_application,\n    bench_best_price_lookup,\n    bench_book_snapshot,\n    bench_market_impact_calculation,\n    bench_high_frequency_updates,\n    bench_concurrent_access,\n);\ncriterion_main!(benches); ","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","benches","fill_processing.rs"],"content":"//! Benchmark for fill processing\n//!\n//! This benchmark measures the performance of trade execution and\n//! fill processing operations.\n\nuse criterion::{black_box, criterion_group, criterion_main, Criterion};\nuse polyfill_rs::{\n    book::OrderBook,\n    fill::{FillEngine, FillProcessor},\n    types::{FillEvent, MarketOrderRequest, OrderDelta, Side},\n};\nuse rust_decimal::{Decimal, Decimal as RustDecimal};\nuse rust_decimal_macros::dec;\nuse std::time::Instant;\n\nfn bench_fill_engine_creation(c: \u0026mut Criterion) {\n    c.bench_function(\"fill_engine_creation\", |b| {\n        b.iter(|| {\n            let _engine = FillEngine::new(\n                black_box(dec!(1)),\n                black_box(dec!(5)),\n                black_box(10),\n            );\n        });\n    });\n}\n\nfn bench_market_order_execution(c: \u0026mut Criterion) {\n    let mut engine = FillEngine::new(dec!(1), dec!(5), 10);\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate book with levels\n    for i in 1..=20 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            price,\n            size: dec!(100),\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"market_order_execution\", |b| {\n        b.iter(|| {\n            let request = MarketOrderRequest {\n                token_id: \"test_token\".to_string(),\n                side: black_box(Side::BUY),\n                amount: black_box(dec!(50)),\n                slippage_tolerance: Some(dec!(1.0)),\n                client_id: Some(\"bench_order\".to_string()),\n            };\n            \n            let _result = engine.execute_market_order(\u0026request, \u0026book);\n        });\n    });\n}\n\nfn bench_fill_processor(c: \u0026mut Criterion) {\n    let mut processor = FillProcessor::new(1000);\n    \n    c.bench_function(\"fill_processor\", |b| {\n        b.iter(|| {\n            let fill = FillEvent {\n                id: \"fill_1\".to_string(),\n                order_id: \"order_1\".to_string(),\n                token_id: \"test_token\".to_string(),\n                side: black_box(Side::BUY),\n                price: black_box(dec!(0.5)),\n                size: black_box(dec!(100)),\n                timestamp: chrono::Utc::now(),\n                maker_address: alloy_primitives::Address::ZERO,\n                taker_address: alloy_primitives::Address::ZERO,\n                fee: black_box(dec!(0.1)),\n            };\n            \n            processor.process_fill(fill).unwrap();\n        });\n    });\n}\n\nfn bench_market_impact_calculation(c: \u0026mut Criterion) {\n    let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n    \n    // Pre-populate with realistic order book\n    for i in 1..=30 {\n        let price = Decimal::from(50 + i) / Decimal::from(100);\n        let size = Decimal::from(100 + i * 10);\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            price,\n            size,\n            sequence: i,\n        };\n        book.apply_delta(delta).unwrap();\n    }\n\n    c.bench_function(\"market_impact_calculation\", |b| {\n        b.iter(|| {\n            let _impact = book.calculate_market_impact(Side::BUY, dec!(50));\n            let _impact = book.calculate_market_impact(Side::SELL, dec!(50));\n        });\n    });\n}\n\nfn bench_high_frequency_fills(c: \u0026mut Criterion) {\n    c.bench_function(\"high_frequency_fills\", |b| {\n        b.iter(|| {\n            let mut engine = FillEngine::new(dec!(1), dec!(2), 5);\n            let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n            let start_time = Instant::now();\n            \n            // Simulate high-frequency fill processing\n            for i in 1..=100 {\n                // Add some market depth\n                let price = Decimal::from(500 + (i % 10)) / Decimal::from(1000);\n                let size = Decimal::from(10 + (i % 90));\n                let delta = OrderDelta {\n                    token_id: \"test_token\".to_string(),\n                    timestamp: chrono::Utc::now(),\n                    side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n                    price,\n                    size,\n                    sequence: i,\n                };\n                book.apply_delta(delta).unwrap();\n                \n                // Execute market orders\n                if i % 5 == 0 {\n                    let request = MarketOrderRequest {\n                        token_id: \"test_token\".to_string(),\n                        side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n                        amount: dec!(10),\n                        slippage_tolerance: Some(dec!(1.0)),\n                        client_id: Some(format!(\"order_{}\", i)),\n                    };\n                    \n                    let _result = engine.execute_market_order(\u0026request, \u0026book);\n                }\n            }\n            \n            let duration = start_time.elapsed();\n            black_box(duration);\n        });\n    });\n}\n\nfn bench_fill_statistics(c: \u0026mut Criterion) {\n    let mut engine = FillEngine::new(dec!(1), dec!(5), 10);\n    \n    // Add some fills\n    for i in 1..=100 {\n        let request = MarketOrderRequest {\n            token_id: \"test_token\".to_string(),\n            side: if i % 2 == 0 { Side::BUY } else { Side::SELL },\n            amount: dec!(10),\n            slippage_tolerance: Some(dec!(1.0)),\n            client_id: Some(format!(\"order_{}\", i)),\n        };\n        \n        let mut book = OrderBook::new(\"test_token\".to_string(), 100);\n        book.apply_delta(OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: chrono::Utc::now(),\n            side: request.side.opposite(),\n            price: dec!(0.5),\n            size: dec!(100),\n            sequence: i,\n        }).unwrap();\n        \n        let _result = engine.execute_market_order(\u0026request, \u0026book);\n    }\n\n    c.bench_function(\"fill_statistics\", |b| {\n        b.iter(|| {\n            let _stats = engine.get_stats();\n        });\n    });\n}\n\ncriterion_group!(\n    benches,\n    bench_fill_engine_creation,\n    bench_market_order_execution,\n    bench_fill_processor,\n    bench_market_impact_calculation,\n    bench_high_frequency_fills,\n    bench_fill_statistics,\n);\ncriterion_main!(benches); ","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","examples","comprehensive_demo.rs"],"content":"//! Comprehensive Demo for polyfill-rs\n//!\n//! This example demonstrates all the major functions and capabilities of the polyfill-rs library:\n//! - Basic client operations and API calls\n//! - Order book management and analytics\n//! - Real-time streaming capabilities\n//! - Trade execution and fill processing\n//! - Utility functions and mathematical operations\n//! - Error handling and retry logic\n//! - Rate limiting and performance optimizations\n\nuse polyfill_rs::{\n    // Core client types\n    ClobClient, PolyfillClient, OrderArgs, Side, OrderType,\n    \n    // Order book management\n    book::{OrderBook, OrderBookManager},\n    \n    // Streaming capabilities\n    stream::{WebSocketStream, StreamManager},\n    \n    // Fill execution\n    fill::{FillEngine, FillProcessor},\n    \n    // Types and structures\n    types::*,\n    \n    // Error handling\n    errors::{PolyfillError, Result},\n    \n    // Utility functions\n    utils::{crypto, math, retry, time, url, rate_limit, address},\n    \n    // Configuration\n    ClientConfig,\n};\n\nuse rust_decimal::Decimal;\nuse rust_decimal_macros::dec;\nuse std::time::Duration;\nuse tokio::time::sleep;\nuse tracing::{error, info, debug};\n\n/// Comprehensive demo showcasing all polyfill-rs functionality\npub struct PolyfillDemo {\n    /// Basic HTTP client\n    client: ClobClient,\n    /// Advanced client with configuration\n    advanced_client: PolyfillClient,\n    /// Order book manager\n    book_manager: OrderBookManager,\n    /// Fill engine for trade execution\n    fill_engine: FillEngine,\n    /// Fill processor for handling fills\n    fill_processor: FillProcessor,\n    /// Stream manager for real-time data\n    stream_manager: StreamManager,\n    /// Rate limiter\n    rate_limiter: rate_limit::TokenBucket,\n    /// Statistics\n    stats: DemoStats,\n}\n\n/// Demo statistics\n#[derive(Debug, Clone)]\npub struct DemoStats {\n    pub api_calls: u64,\n    pub orders_processed: u64,\n    pub fills_processed: u64,\n    pub stream_messages: u64,\n    pub errors: u64,\n    pub total_volume: Decimal,\n}\n\nimpl Default for DemoStats {\n    fn default() -\u003e Self {\n        Self {\n            api_calls: 0,\n            orders_processed: 0,\n            fills_processed: 0,\n            stream_messages: 0,\n            errors: 0,\n            total_volume: dec!(0),\n        }\n    }\n}\n\nimpl PolyfillDemo {\n    /// Create a new comprehensive demo\n    pub fn new() -\u003e Result\u003cSelf\u003e {\n        // Create basic client\n        let client = ClobClient::new(\"https://clob.polymarket.com\");\n        \n        // Create advanced client with configuration\n        let _config = ClientConfig {\n            base_url: \"https://clob.polymarket.com\".to_string(),\n            chain_id: 137, // Polygon\n            private_key: None, // Would be set in production\n            api_credentials: None, // Would be set in production\n            max_slippage: Some(dec!(0.01)), // 1% max slippage\n            fee_rate: Some(dec!(0.02)), // 2% fee rate\n            timeout: Some(Duration::from_secs(30)),\n            max_connections: Some(100),\n        };\n        \n        let advanced_client = PolyfillClient::new(\"https://clob.polymarket.com\");\n        \n        // Create order book manager\n        let book_manager = OrderBookManager::new(100);\n        \n        // Create fill engine\n        let fill_engine = FillEngine::new(\n            dec!(1.0),    // Min fill size\n            dec!(2.0),    // Max slippage 2%\n            5,            // 5 bps fee rate\n        );\n        \n        // Create fill processor\n        let fill_processor = FillProcessor::new(1000);\n        \n        // Create stream manager\n        let stream_manager = StreamManager::new();\n        \n        // Create rate limiter (100 requests per second)\n        let rate_limiter = rate_limit::TokenBucket::new(100, 100);\n        \n        Ok(Self {\n            client,\n            advanced_client,\n            book_manager,\n            fill_engine,\n            fill_processor,\n            stream_manager,\n            rate_limiter,\n            stats: DemoStats::default(),\n        })\n    }\n\n    /// Demo 1: Basic API Operations\n    pub async fn demo_basic_api_operations(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 1: Basic API Operations ===\");\n        \n        // Test connectivity\n        let is_ok = self.client.get_ok().await;\n        info!(\"API connectivity: {}\", is_ok);\n        self.stats.api_calls += 1;\n        \n        // Get server time\n        match self.client.get_server_time().await {\n            Ok(timestamp) =\u003e {\n                info!(\"Server time: {}\", timestamp);\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get server time: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        // Get sampling markets\n        match self.client.get_sampling_markets(None).await {\n            Ok(markets) =\u003e {\n                info!(\"Found {} markets\", markets.data.len());\n                for market in \u0026markets.data[..std::cmp::min(3, markets.data.len())] {\n                    info!(\"  Market: {} - {}\", market.question, market.market_slug);\n                }\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get markets: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        Ok(())\n    }\n\n    /// Demo 2: Order Book Operations\n    pub async fn demo_order_book_operations(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 2: Order Book Operations ===\");\n        \n        // Example token ID (you would use a real one in production)\n        let token_id = \"12345\";\n        \n        // Get order book from API\n        match self.client.get_order_book(token_id).await {\n            Ok(order_book) =\u003e {\n                info!(\"Order book for token {}: {} bids, {} asks\", \n                    token_id, order_book.bids.len(), order_book.asks.len());\n                \n                // Create local order book\n                let mut local_book = OrderBook::new(token_id.to_string(), 50);\n                \n                // Apply order book data to local book\n                for (i, bid) in order_book.bids.iter().enumerate() {\n                    local_book.apply_delta(OrderDelta {\n                        token_id: token_id.to_string(),\n                        timestamp: chrono::Utc::now(),\n                        side: Side::BUY,\n                        price: bid.price,\n                        size: bid.size,\n                        sequence: i as u64,\n                    })?;\n                }\n                \n                for (i, ask) in order_book.asks.iter().enumerate() {\n                    local_book.apply_delta(OrderDelta {\n                        token_id: token_id.to_string(),\n                        timestamp: chrono::Utc::now(),\n                        side: Side::SELL,\n                        price: ask.price,\n                        size: ask.size,\n                        sequence: (order_book.bids.len() + i) as u64,\n                    })?;\n                }\n                \n                // Get analytics\n                let analytics = local_book.analytics();\n                info!(\"Book analytics:\");\n                info!(\"  Bid levels: {}, Ask levels: {}\", analytics.bid_count, analytics.ask_count);\n                info!(\"  Total bid size: {}, Total ask size: {}\", analytics.total_bid_size, analytics.total_ask_size);\n                if let Some(spread) = analytics.spread {\n                    info!(\"  Spread: {} ({:.2}%)\", spread, analytics.spread_pct.unwrap_or(dec!(0)));\n                }\n                if let Some(mid) = analytics.mid_price {\n                    info!(\"  Mid price: {}\", mid);\n                }\n                \n                // Calculate market impact\n                if let Some(impact) = local_book.calculate_market_impact(Side::BUY, dec!(100.0)) {\n                    info!(\"Market impact for 100 size buy:\");\n                    info!(\"  Average price: {}\", impact.average_price);\n                    info!(\"  Impact: {:.2}%\", impact.impact_pct);\n                    info!(\"  Total cost: {}\", impact.total_cost);\n                }\n                \n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get order book: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        Ok(())\n    }\n\n    /// Demo 3: Market Data Operations\n    pub async fn demo_market_data_operations(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 3: Market Data Operations ===\");\n        \n        let token_id = \"12345\";\n        \n        // Get midpoint\n        match self.client.get_midpoint(token_id).await {\n            Ok(midpoint) =\u003e {\n                info!(\"Midpoint for {}: {}\", token_id, midpoint.mid);\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get midpoint: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        // Get spread\n        match self.client.get_spread(token_id).await {\n            Ok(spread) =\u003e {\n                info!(\"Spread for {}: {}\", token_id, spread.spread);\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get spread: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        // Get price for both sides\n        for side in [Side::BUY, Side::SELL] {\n            match self.client.get_price(token_id, side).await {\n                Ok(price) =\u003e {\n                    info!(\"{} price for {}: {}\", side.as_str(), token_id, price.price);\n                    self.stats.api_calls += 1;\n                }\n                Err(e) =\u003e {\n                    error!(\"Failed to get {} price: {}\", side.as_str(), e);\n                    self.stats.errors += 1;\n                }\n            }\n        }\n        \n        // Get tick size\n        match self.client.get_tick_size(token_id).await {\n            Ok(tick_size) =\u003e {\n                info!(\"Tick size for {}: {}\", token_id, tick_size);\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get tick size: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        // Get neg risk\n        match self.client.get_neg_risk(token_id).await {\n            Ok(neg_risk) =\u003e {\n                info!(\"Neg risk for {}: {}\", token_id, neg_risk);\n                self.stats.api_calls += 1;\n            }\n            Err(e) =\u003e {\n                error!(\"Failed to get neg risk: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        Ok(())\n    }\n\n    /// Demo 4: Order Creation and Management\n    pub async fn demo_order_operations(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 4: Order Creation and Management ===\");\n        \n        // Create order arguments\n        let order_args = OrderArgs::new(\n            \"12345\",\n            dec!(0.75),\n            dec!(100.0),\n            Side::BUY,\n        );\n        \n        info!(\"Created order args: {:?}\", order_args);\n        \n        // Create market order request\n        let market_order = MarketOrderRequest {\n            token_id: \"12345\".to_string(),\n            side: Side::BUY,\n            amount: dec!(100.0),\n            slippage_tolerance: Some(dec!(1.0)), // 1% slippage\n            client_id: Some(\"demo_market_order\".to_string()),\n        };\n        \n        info!(\"Created market order request: {:?}\", market_order);\n        \n        // Create limit order request\n        let limit_order = OrderRequest {\n            token_id: \"12345\".to_string(),\n            side: Side::BUY,\n            price: dec!(0.75),\n            size: dec!(100.0),\n            order_type: OrderType::GTC,\n            expiration: None,\n            client_id: Some(\"demo_limit_order\".to_string()),\n        };\n        \n        info!(\"Created limit order request: {:?}\", limit_order);\n        \n        self.stats.orders_processed += 2;\n        \n        Ok(())\n    }\n\n    /// Demo 5: Fill Execution\n    pub async fn demo_fill_execution(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 5: Fill Execution ===\");\n        \n        // Create a mock order book for testing\n        let mut book = OrderBook::new(\"12345\".to_string(), 50);\n        \n        // Add some liquidity\n        for i in 1..=5 {\n            book.apply_delta(OrderDelta {\n                token_id: \"12345\".to_string(),\n                timestamp: chrono::Utc::now(),\n                side: Side::BUY,\n                price: dec!(0.70) + Decimal::from(i) * dec!(0.01),\n                size: dec!(100.0),\n                sequence: i,\n            })?;\n        }\n        \n        for i in 1..=5 {\n            book.apply_delta(OrderDelta {\n                token_id: \"12345\".to_string(),\n                timestamp: chrono::Utc::now(),\n                side: Side::SELL,\n                price: dec!(0.80) + Decimal::from(i) * dec!(0.01),\n                size: dec!(100.0),\n                sequence: i + 10,\n            })?;\n        }\n        \n        info!(\"Created order book with liquidity\");\n        \n        // Execute market order\n        let market_order = MarketOrderRequest {\n            token_id: \"12345\".to_string(),\n            side: Side::BUY,\n            amount: dec!(50.0),\n            slippage_tolerance: Some(dec!(2.0)),\n            client_id: Some(\"demo_market_buy\".to_string()),\n        };\n        \n        let fill_result = self.fill_engine.execute_market_order(\u0026market_order, \u0026book)?;\n        \n        info!(\"Market order execution result:\");\n        info!(\"  Status: {:?}\", fill_result.status);\n        info!(\"  Total size: {}\", fill_result.total_size);\n        info!(\"  Average price: {}\", fill_result.average_price);\n        info!(\"  Total cost: {}\", fill_result.total_cost);\n        info!(\"  Fees: {}\", fill_result.fees);\n        info!(\"  Number of fills: {}\", fill_result.fills.len());\n        \n        // Process fills\n        for fill in \u0026fill_result.fills {\n            self.fill_processor.process_fill(fill.clone())?;\n            self.stats.fills_processed += 1;\n            self.stats.total_volume += fill.size;\n        }\n        \n        // Execute limit order\n        let limit_order = OrderRequest {\n            token_id: \"12345\".to_string(),\n            side: Side::SELL,\n            price: dec!(0.85),\n            size: dec!(25.0),\n            order_type: OrderType::GTC,\n            expiration: None,\n            client_id: Some(\"demo_limit_sell\".to_string()),\n        };\n        \n        let limit_result = self.fill_engine.execute_limit_order(\u0026limit_order, \u0026book)?;\n        \n        info!(\"Limit order execution result:\");\n        info!(\"  Status: {:?}\", limit_result.status);\n        info!(\"  Total size: {}\", limit_result.total_size);\n        info!(\"  Average price: {}\", limit_result.average_price);\n        \n        self.stats.orders_processed += 2;\n        \n        Ok(())\n    }\n\n    /// Demo 6: Utility Functions\n    pub async fn demo_utility_functions(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 6: Utility Functions ===\");\n        \n        // Time utilities\n        info!(\"Time utilities:\");\n        info!(\"  Current timestamp (secs): {}\", time::now_secs());\n        info!(\"  Current timestamp (millis): {}\", time::now_millis());\n        info!(\"  Current timestamp (micros): {}\", time::now_micros());\n        \n        // Math utilities\n        info!(\"Math utilities:\");\n        let price = dec!(0.7534);\n        let tick_size = dec!(0.01);\n        let rounded_price = math::round_to_tick(price, tick_size);\n        info!(\"  Price: {}, Tick size: {}, Rounded: {}\", price, tick_size, rounded_price);\n        \n        let notional = math::notional(price, dec!(100.0));\n        info!(\"  Notional value: {}\", notional);\n        \n        let spread_pct = math::spread_pct(dec!(0.75), dec!(0.76));\n        info!(\"  Spread percentage: {:?}\", spread_pct);\n        \n        let mid_price = math::mid_price(dec!(0.75), dec!(0.76));\n        info!(\"  Mid price: {:?}\", mid_price);\n        \n        // Address utilities\n        info!(\"Address utilities:\");\n        let address = \"0x1234567890123456789012345678901234567890\";\n        match address::parse_address(address) {\n            Ok(addr) =\u003e info!(\"  Parsed address: {:?}\", addr),\n            Err(e) =\u003e error!(\"  Failed to parse address: {}\", e),\n        }\n        \n        let token_id = \"12345\";\n        match address::validate_token_id(token_id) {\n            Ok(_) =\u003e info!(\"  Valid token ID: {}\", token_id),\n            Err(e) =\u003e error!(\"  Invalid token ID: {}\", e),\n        }\n        \n        // URL utilities\n        info!(\"URL utilities:\");\n        let endpoint = url::build_endpoint(\"https://api.example.com\", \"/v1/orders\")?;\n        info!(\"  Built endpoint: {}\", endpoint);\n        \n        // Rate limiting\n        info!(\"Rate limiting:\");\n        for i in 0..5 {\n            let allowed = self.rate_limiter.try_consume();\n            info!(\"  Request {}: {}\", i + 1, if allowed { \"ALLOWED\" } else { \"RATE LIMITED\" });\n        }\n        \n        Ok(())\n    }\n\n    /// Demo 7: Error Handling and Retry Logic\n    pub async fn demo_error_handling(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 7: Error Handling and Retry Logic ===\");\n        \n        // Demonstrate retry logic\n        let retry_config = retry::RetryConfig {\n            max_attempts: 3,\n            initial_delay: Duration::from_millis(100),\n            max_delay: Duration::from_secs(1),\n            backoff_factor: 2.0,\n            jitter: true,\n        };\n        \n        let operation = || async {\n            // Simulate a potentially failing operation\n            if rand::random::\u003cbool\u003e() {\n                Ok(\"Success!\")\n            } else {\n                Err(PolyfillError::network(\"Simulated network error\", std::io::Error::new(std::io::ErrorKind::Other, \"Simulated error\")))\n            }\n        };\n        \n        match retry::with_retry(\u0026retry_config, operation).await {\n            Ok(result) =\u003e {\n                info!(\"Retry operation succeeded: {}\", result);\n            }\n            Err(e) =\u003e {\n                error!(\"Retry operation failed after all attempts: {}\", e);\n                self.stats.errors += 1;\n            }\n        }\n        \n        // Demonstrate error types\n        info!(\"Error types demonstration:\");\n        \n        let api_error = PolyfillError::api(400, \"Bad Request\");\n        info!(\"  API Error: {:?}\", api_error);\n        \n        let network_error = PolyfillError::network(\"Connection timeout\", std::io::Error::new(std::io::ErrorKind::TimedOut, \"Connection timeout\"));\n        info!(\"  Network Error: {:?}\", network_error);\n        \n        let parse_error = PolyfillError::parse(\"Invalid JSON\", None);\n        info!(\"  Parse Error: {:?}\", parse_error);\n        \n        let config_error = PolyfillError::config(\"Invalid configuration\");\n        info!(\"  Config Error: {:?}\", config_error);\n        \n        Ok(())\n    }\n\n    /// Demo 8: Streaming Capabilities (Mock)\n    pub async fn demo_streaming_capabilities(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 8: Streaming Capabilities ===\");\n        \n        // Create a mock WebSocket stream\n        let _stream = WebSocketStream::new(\"wss://stream.polymarket.com\");\n        \n        info!(\"Created WebSocket stream\");\n        \n        // Simulate subscription\n        let subscription = WssSubscription {\n            auth: WssAuth {\n                address: \"0x1234567890123456789012345678901234567890\".to_string(),\n                signature: \"mock_signature\".to_string(),\n                timestamp: time::now_secs(),\n                nonce: crypto::generate_nonce().to_string(),\n            },\n            markets: Some(vec![\"market1\".to_string(), \"market2\".to_string()]),\n            asset_ids: Some(vec![\"12345\".to_string(), \"67890\".to_string()]),\n            channel_type: \"USER\".to_string(),\n        };\n        \n        info!(\"Created subscription: {:?}\", subscription);\n        \n        // Simulate receiving stream messages\n        let messages = vec![\n            StreamMessage::Heartbeat { timestamp: chrono::Utc::now() },\n            StreamMessage::BookUpdate {\n                data: OrderDelta {\n                    token_id: \"12345\".to_string(),\n                    timestamp: chrono::Utc::now(),\n                    side: Side::BUY,\n                    price: dec!(0.75),\n                    size: dec!(100.0),\n                    sequence: 1,\n                }\n            },\n            StreamMessage::Trade {\n                data: FillEvent {\n                    id: \"fill1\".to_string(),\n                    order_id: \"order1\".to_string(),\n                    token_id: \"12345\".to_string(),\n                    side: Side::BUY,\n                    price: dec!(0.75),\n                    size: dec!(50.0),\n                    timestamp: chrono::Utc::now(),\n                    maker_address: alloy_primitives::Address::ZERO,\n                    taker_address: alloy_primitives::Address::ZERO,\n                    fee: dec!(0.375),\n                }\n            },\n        ];\n        \n        for message in messages {\n            info!(\"Received stream message: {:?}\", message);\n            self.stats.stream_messages += 1;\n            \n            // Process message based on type\n            match \u0026message {\n                StreamMessage::BookUpdate { data } =\u003e {\n                    info!(\"  Processing book update for token: {}\", data.token_id);\n                    if let Err(e) = self.book_manager.apply_delta(data.clone()) {\n                        error!(\"  Failed to apply book update: {}\", e);\n                        self.stats.errors += 1;\n                    }\n                }\n                StreamMessage::Trade { data } =\u003e {\n                    info!(\"  Processing trade: {} {} @ {}\", \n                        data.side.as_str(), data.size, data.price);\n                    if let Err(e) = self.fill_processor.process_fill(data.clone()) {\n                        error!(\"  Failed to process fill: {}\", e);\n                        self.stats.errors += 1;\n                    }\n                }\n                StreamMessage::Heartbeat { timestamp } =\u003e {\n                    debug!(\"  Received heartbeat at: {}\", timestamp);\n                }\n                _ =\u003e {\n                    info!(\"  Unhandled message type\");\n                }\n            }\n        }\n        \n        Ok(())\n    }\n\n    /// Demo 9: Performance and Analytics\n    pub async fn demo_performance_analytics(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"=== Demo 9: Performance and Analytics ===\");\n        \n        // Get fill engine statistics\n        let fill_stats = self.fill_engine.get_stats();\n        info!(\"Fill engine statistics:\");\n        info!(\"  Total orders: {}\", fill_stats.total_orders);\n        info!(\"  Total fills: {}\", fill_stats.total_fills);\n        info!(\"  Total volume: {}\", fill_stats.total_volume);\n        info!(\"  Total fees: {}\", fill_stats.total_fees);\n        \n        // Get fill processor statistics\n        let processor_stats = self.fill_processor.get_stats();\n        info!(\"Fill processor statistics:\");\n        info!(\"  Pending orders: {}\", processor_stats.pending_orders);\n        info!(\"  Pending fills: {}\", processor_stats.pending_fills);\n        info!(\"  Pending volume: {}\", processor_stats.pending_volume);\n        info!(\"  Processed fills: {}\", processor_stats.processed_fills);\n        info!(\"  Processed volume: {}\", processor_stats.processed_volume);\n        \n        // Get demo statistics\n        info!(\"Demo statistics:\");\n        info!(\"  API calls: {}\", self.stats.api_calls);\n        info!(\"  Orders processed: {}\", self.stats.orders_processed);\n        info!(\"  Fills processed: {}\", self.stats.fills_processed);\n        info!(\"  Stream messages: {}\", self.stats.stream_messages);\n        info!(\"  Errors: {}\", self.stats.errors);\n        info!(\"  Total volume: {}\", self.stats.total_volume);\n        \n        // Calculate error rate\n        let total_operations = self.stats.api_calls + self.stats.orders_processed + self.stats.stream_messages;\n        let error_rate = if total_operations \u003e 0 {\n            (self.stats.errors as f64 / total_operations as f64) * 100.0\n        } else {\n            0.0\n        };\n        info!(\"  Error rate: {:.2}%\", error_rate);\n        \n        Ok(())\n    }\n\n    /// Run all demos\n    pub async fn run_all_demos(\u0026mut self) -\u003e Result\u003c()\u003e {\n        info!(\"Starting comprehensive polyfill-rs demo...\");\n        \n        // Run all demo sections\n        self.demo_basic_api_operations().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_order_book_operations().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_market_data_operations().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_order_operations().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_fill_execution().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_utility_functions().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_error_handling().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_streaming_capabilities().await?;\n        sleep(Duration::from_millis(500)).await;\n        \n        self.demo_performance_analytics().await?;\n        \n        info!(\"Comprehensive demo completed successfully!\");\n        Ok(())\n    }\n}\n\n#[tokio::main]\nasync fn main() -\u003e Result\u003c()\u003e {\n    // Initialize logging\n    tracing_subscriber::fmt::init();\n    \n    info!(\"Polyfill-rs Comprehensive Demo\");\n    info!(\"==============================\");\n    \n    // Create and run demo\n    let mut demo = PolyfillDemo::new()?;\n    \n    if let Err(e) = demo.run_all_demos().await {\n        error!(\"Demo failed: {}\", e);\n        std::process::exit(1);\n    }\n    \n    info!(\"Demo completed successfully!\");\n    Ok(())\n} ","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","examples","quick_demo.rs"],"content":"//! Quick Demo for polyfill-rs\n//!\n//! This example demonstrates all available API endpoints in a simple, easy-to-run format.\n//! It can be run without authentication credentials and will test all public endpoints.\n\nuse polyfill_rs::{ClobClient, Side, Result, PolyfillError};\nuse rust_decimal::Decimal;\nuse std::str::FromStr;\nuse tokio::time::{sleep, Duration};\nuse tracing::{info, error, warn};\n\n/// Quick demo that tests all available endpoints\n#[tokio::main]\nasync fn main() -\u003e Result\u003c()\u003e {\n    // Initialize logging\n    tracing_subscriber::fmt::init();\n    \n    info!(\"Polyfill-rs Quick Demo\");\n    info!(\"======================\");\n    \n    // Create client\n    let client = ClobClient::new(\"https://clob.polymarket.com\");\n    \n    // Test 1: Basic connectivity\n    info!(\"\\nTesting API Connectivity...\");\n    match test_connectivity(\u0026client).await {\n        Ok(_) =\u003e info!(\"API connectivity test passed\"),\n        Err(e) =\u003e {\n            error!(\"API connectivity test failed: {}\", e);\n            return Err(e);\n        }\n    }\n    \n    // Test 2: Get a valid token ID from markets\n    info!(\"\\nGetting Market Data...\");\n    let token_id = match get_valid_token_id(\u0026client).await {\n        Ok(id) =\u003e {\n            info!(\"Found valid token ID: {}\", id);\n            id\n        }\n        Err(e) =\u003e {\n            error!(\"Failed to get valid token ID: {}\", e);\n            return Err(e);\n        }\n    };\n    \n    // Test 3: Test all market data endpoints\n    info!(\"\\nTesting Market Data Endpoints...\");\n    test_market_data_endpoints(\u0026client, \u0026token_id).await?;\n    \n    // Test 4: Test error handling\n    info!(\"\\nTesting Error Handling...\");\n    test_error_handling(\u0026client).await?;\n    \n    // Test 5: Performance test\n    info!(\"\\nTesting Performance...\");\n    test_performance(\u0026client, \u0026token_id).await?;\n    \n    info!(\"\\nAll tests completed successfully!\");\n    info!(\"The polyfill-rs client is working correctly with the Polymarket API.\");\n    \n    Ok(())\n}\n\n/// Test basic API connectivity\nasync fn test_connectivity(client: \u0026ClobClient) -\u003e Result\u003c()\u003e {\n    // Test /ok endpoint\n    let is_ok = client.get_ok().await;\n    if !is_ok {\n        return Err(PolyfillError::network(\"API not responding\", std::io::Error::new(std::io::ErrorKind::Other, \"API not responding\")));\n    }\n    info!(\"  /ok endpoint responding\");\n    \n    // Test /time endpoint\n    let server_time = client.get_server_time().await?;\n    info!(\"  Server time: {}\", server_time);\n    \n    // Verify server time is reasonable (within last 24 hours)\n    let current_time = std::time::SystemTime::now()\n        .duration_since(std::time::UNIX_EPOCH)\n        .unwrap()\n        .as_secs();\n    \n    let time_diff = if server_time \u003e current_time {\n        server_time - current_time\n    } else {\n        current_time - server_time\n    };\n    \n    if time_diff \u003e 86400 { // 24 hours\n        warn!(\"  Server time seems off (diff: {} seconds)\", time_diff);\n    } else {\n        info!(\"  Server time is reasonable\");\n    }\n    \n    Ok(())\n}\n\n/// Get a valid token ID from the markets endpoint\nasync fn get_valid_token_id(client: \u0026ClobClient) -\u003e Result\u003cString\u003e {\n    let markets = client.get_sampling_markets(None).await?;\n    \n    if markets.data.is_empty() {\n        return Err(PolyfillError::api(404, \"No markets found\"));\n    }\n    \n    // Find a market with active tokens\n    for market in \u0026markets.data {\n        if market.active \u0026\u0026 !market.closed {\n            for token in \u0026market.tokens {\n                if !token.token_id.is_empty() {\n                    info!(\"  Found active market: {}\", market.question);\n                    info!(\"  Market slug: {}\", market.market_slug);\n                    info!(\"  Token ID: {}\", token.token_id);\n                    info!(\"  Outcome: {}\", token.outcome);\n                    return Ok(token.token_id.clone());\n                }\n            }\n        }\n    }\n    \n    Err(PolyfillError::api(404, \"No active markets with valid tokens found\"))\n}\n\n/// Test all market data endpoints\nasync fn test_market_data_endpoints(client: \u0026ClobClient, token_id: \u0026str) -\u003e Result\u003c()\u003e {\n    // Test order book\n    info!(\"  Testing order book endpoint...\");\n    let order_book = client.get_order_book(token_id).await?;\n    info!(\"    Order book: {} bids, {} asks\", order_book.bids.len(), order_book.asks.len());\n    \n    // Test midpoint\n    info!(\"  Testing midpoint endpoint...\");\n    let midpoint = client.get_midpoint(token_id).await?;\n    info!(\"    Midpoint: {}\", midpoint.mid);\n    \n    // Test spread\n    info!(\"  Testing spread endpoint...\");\n    let spread = client.get_spread(token_id).await?;\n    info!(\"    Spread: {}\", spread.spread);\n    \n    // Test buy price\n    info!(\"  Testing buy price endpoint...\");\n    let buy_price = client.get_price(token_id, Side::BUY).await?;\n    info!(\"    Buy price: {}\", buy_price.price);\n    \n    // Test sell price\n    info!(\"  Testing sell price endpoint...\");\n    let sell_price = client.get_price(token_id, Side::SELL).await?;\n    info!(\"    Sell price: {}\", sell_price.price);\n    \n    // Test tick size\n    info!(\"  Testing tick size endpoint...\");\n    let tick_size = client.get_tick_size(token_id).await?;\n    info!(\"    Tick size: {}\", tick_size);\n    \n    // Test neg risk\n    info!(\"  Testing neg risk endpoint...\");\n    let neg_risk = client.get_neg_risk(token_id).await?;\n    info!(\"    Neg risk: {}\", neg_risk);\n    \n    // Validate data consistency\n    info!(\"  Validating data consistency...\");\n    validate_market_data(\u0026order_book, \u0026midpoint, \u0026spread, \u0026buy_price, \u0026sell_price)?;\n    \n    Ok(())\n}\n\n/// Validate that market data is consistent\nfn validate_market_data(\n    order_book: \u0026polyfill_rs::client::OrderBookSummary,\n    midpoint: \u0026polyfill_rs::client::MidpointResponse,\n    spread: \u0026polyfill_rs::client::SpreadResponse,\n    buy_price: \u0026polyfill_rs::client::PriceResponse,\n    sell_price: \u0026polyfill_rs::client::PriceResponse,\n) -\u003e Result\u003c()\u003e {\n    // Check that we have some liquidity\n    if order_book.bids.is_empty() \u0026\u0026 order_book.asks.is_empty() {\n        warn!(\"    Order book is empty\");\n    } else {\n        info!(\"    Order book has liquidity\");\n    }\n    \n    // Check that prices are positive\n    if buy_price.price \u003c= Decimal::ZERO {\n        warn!(\"    Buy price is not positive: {}\", buy_price.price);\n    } else {\n        info!(\"    Buy price is positive\");\n    }\n    \n    if sell_price.price \u003c= Decimal::ZERO {\n        warn!(\"    Sell price is not positive: {}\", sell_price.price);\n    } else {\n        info!(\"    Sell price is positive\");\n    }\n    \n    // Check that spread is reasonable\n    if spread.spread \u003c Decimal::ZERO {\n        warn!(\"    Spread is negative: {}\", spread.spread);\n    } else {\n        info!(\"    Spread is non-negative\");\n    }\n    \n    // Check that midpoint is between buy and sell prices (if both exist)\n    if buy_price.price \u003e Decimal::ZERO \u0026\u0026 sell_price.price \u003e Decimal::ZERO {\n        if midpoint.mid \u003c buy_price.price || midpoint.mid \u003e sell_price.price {\n            warn!(\"    Midpoint {} is not between buy {} and sell {}\", \n                  midpoint.mid, buy_price.price, sell_price.price);\n        } else {\n            info!(\"    Midpoint is between buy and sell prices\");\n        }\n    }\n    \n    Ok(())\n}\n\n/// Test error handling with invalid requests\nasync fn test_error_handling(client: \u0026ClobClient) -\u003e Result\u003c()\u003e {\n    // Test with invalid token ID\n    info!(\"  Testing invalid token ID...\");\n    let result = client.get_order_book(\"invalid_token_12345\").await;\n    match result {\n        Ok(_) =\u003e {\n            warn!(\"    Invalid token ID returned data instead of error\");\n        }\n        Err(e) =\u003e {\n            match e {\n                PolyfillError::Api { status, .. } =\u003e {\n                    if status \u003e= 400 {\n                        info!(\"    Invalid token ID correctly returned error: {}\", status);\n                    } else {\n                        warn!(\"    Unexpected status code for invalid token: {}\", status);\n                    }\n                }\n                _ =\u003e {\n                    info!(\"    Invalid token ID returned error: {:?}\", e);\n                }\n            }\n        }\n    }\n    \n    // Test with empty token ID\n    info!(\"  Testing empty token ID...\");\n    let result = client.get_order_book(\"\").await;\n    match result {\n        Ok(_) =\u003e {\n            warn!(\"    Empty token ID returned data instead of error\");\n        }\n        Err(e) =\u003e {\n            info!(\"    Empty token ID correctly returned error: {:?}\", e);\n        }\n    }\n    \n    Ok(())\n}\n\n/// Test performance characteristics\nasync fn test_performance(client: \u0026ClobClient, token_id: \u0026str) -\u003e Result\u003c()\u003e {\n    let mut total_time = Duration::from_secs(0);\n    let mut success_count = 0;\n    let test_count = 5;\n    \n    info!(\"  Running {} performance tests...\", test_count);\n    \n    for i in 1..=test_count {\n        let start = std::time::Instant::now();\n        \n        // Test a mix of endpoints\n        let results = tokio::join!(\n            client.get_server_time(),\n            client.get_midpoint(token_id),\n            client.get_spread(token_id),\n        );\n        \n        let duration = start.elapsed();\n        total_time += duration;\n        \n        match results {\n            (Ok(_), Ok(_), Ok(_)) =\u003e {\n                success_count += 1;\n                info!(\"    Test {}: PASSED {:.2}ms\", i, duration.as_secs_f64() * 1000.0);\n            }\n            _ =\u003e {\n                warn!(\"    Test {}: FAILED in {:.2}ms\", i, duration.as_secs_f64() * 1000.0);\n            }\n        }\n        \n        // Small delay between tests\n        sleep(Duration::from_millis(100)).await;\n    }\n    \n    let avg_time = total_time / test_count as u32;\n    let success_rate = (success_count as f64 / test_count as f64) * 100.0;\n    \n    info!(\"  Performance Summary:\");\n    info!(\"    Success rate: {:.1}%\", success_rate);\n    info!(\"    Average response time: {:.2}ms\", avg_time.as_secs_f64() * 1000.0);\n    info!(\"    Total time: {:.2}s\", total_time.as_secs_f64());\n    \n    // Performance thresholds\n    if avg_time \u003e Duration::from_secs(2) {\n        warn!(\"    Average response time is slow: {:.2}ms\", avg_time.as_secs_f64() * 1000.0);\n    } else {\n        info!(\"    Response times are acceptable\");\n    }\n    \n    if success_rate \u003c 80.0 {\n        warn!(\"    Success rate is low: {:.1}%\", success_rate);\n    } else {\n        info!(\"    Success rate is good\");\n    }\n    \n    Ok(())\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","examples","snipe.rs"],"content":"//! Snipe example for polyfill-rs\n//!\n//! This example demonstrates high-frequency trading techniques including:\n//! - Real-time order book monitoring\n//! - Stale quote detection\n//! - Rapid order execution\n//! - Market impact analysis\n\nuse polyfill_rs::{\n    book::OrderBookManager,\n    errors::Result,\n    fill::{FillEngine, FillStatus},\n    types::*,\n    utils::time,\n};\nuse rust_decimal::Decimal;\nuse rust_decimal_macros::dec;\nuse rust_decimal::prelude::ToPrimitive;\nuse std::time::Duration;\nuse tokio::time::sleep;\nuse tracing::{error, info, warn};\n\n/// Snipe trading strategy\n#[derive(Debug)]\npub struct SnipeStrategy {\n    /// Target token ID\n    token_id: String,\n    /// Maximum spread to consider\n    max_spread_pct: Decimal,\n    /// Minimum order size\n    min_order_size: Decimal,\n    /// Maximum order size\n    max_order_size: Decimal,\n    /// Stale quote threshold (seconds)\n    stale_threshold: u64,\n    /// Last known best prices\n    last_best_bid: Option\u003cDecimal\u003e,\n    last_best_ask: Option\u003cDecimal\u003e,\n    /// Last update timestamp\n    last_update: u64,\n    /// Order book manager\n    book_manager: OrderBookManager,\n    /// Fill engine\n    fill_engine: FillEngine,\n    /// Statistics\n    stats: SnipeStats,\n}\n\n/// Snipe trading statistics\n#[derive(Debug, Clone)]\npub struct SnipeStats {\n    pub opportunities_detected: u64,\n    pub orders_placed: u64,\n    pub orders_filled: u64,\n    pub total_volume: Decimal,\n    pub total_pnl: Decimal,\n    pub avg_fill_time_ms: f64,\n}\n\nimpl Default for SnipeStats {\n    fn default() -\u003e Self {\n        Self {\n            opportunities_detected: 0,\n            orders_placed: 0,\n            orders_filled: 0,\n            total_volume: dec!(0),\n            total_pnl: dec!(0),\n            avg_fill_time_ms: 0.0,\n        }\n    }\n}\n\nimpl SnipeStrategy {\n    /// Create a new snipe strategy\n    pub fn new(\n        token_id: String,\n        max_spread_pct: Decimal,\n        min_order_size: Decimal,\n        max_order_size: Decimal,\n        stale_threshold: u64,\n    ) -\u003e Self {\n        Self {\n            token_id,\n            max_spread_pct,\n            min_order_size,\n            max_order_size,\n            stale_threshold,\n            last_best_bid: None,\n            last_best_ask: None,\n            last_update: 0,\n            book_manager: OrderBookManager::new(100),\n            fill_engine: FillEngine::new(\n                min_order_size,\n                dec!(2.0), // 2% max slippage\n                5,          // 5 bps fee rate\n            ),\n            stats: SnipeStats::default(),\n        }\n    }\n\n    /// Process a market data update\n    pub fn process_update(\u0026mut self, message: StreamMessage) -\u003e Result\u003c()\u003e {\n        match message {\n            StreamMessage::BookUpdate { data } =\u003e {\n                if data.token_id == self.token_id {\n                    self.process_book_update(data)?;\n                }\n            }\n            StreamMessage::Trade { data } =\u003e {\n                if data.token_id == self.token_id {\n                    self.process_trade(data)?;\n                }\n            }\n            StreamMessage::Heartbeat { timestamp: _ } =\u003e {\n                self.check_stale_quotes()?;\n            }\n            _ =\u003e {}\n        }\n        Ok(())\n    }\n\n    /// Process order book update\n    fn process_book_update(\u0026mut self, delta: OrderDelta) -\u003e Result\u003c()\u003e {\n        // Ensure book exists\n        self.book_manager.get_or_create_book(\u0026self.token_id)?;\n        \n        // Update local order book\n        self.book_manager.apply_delta(delta.clone())?;\n\n        // Get current book state\n        let book = self.book_manager.get_book(\u0026self.token_id)?;\n        \n        // Update best prices\n        if let Some(best_bid) = book.bids.first() {\n            self.last_best_bid = Some(best_bid.price);\n        }\n        if let Some(best_ask) = book.asks.first() {\n            self.last_best_ask = Some(best_ask.price);\n        }\n        \n        self.last_update = time::now_secs();\n\n        // Check for trading opportunities\n        self.check_opportunities()?;\n\n        Ok(())\n    }\n\n    /// Process trade update\n    fn process_trade(\u0026mut self, fill: FillEvent) -\u003e Result\u003c()\u003e {\n        info!(\n            \"Trade: {} {} @ {} (size: {})\",\n            fill.side.as_str(),\n            fill.token_id,\n            fill.price,\n            fill.size\n        );\n\n        // Update statistics\n        self.stats.total_volume += fill.size;\n        \n        // Calculate P\u0026L if this was our trade\n        // (In a real implementation, you'd track your own orders)\n        \n        Ok(())\n    }\n\n    /// Check for trading opportunities\n    fn check_opportunities(\u0026mut self) -\u003e Result\u003c()\u003e {\n        let (bid, ask) = match (self.last_best_bid, self.last_best_ask) {\n            (Some(bid), Some(ask)) =\u003e (bid, ask),\n            _ =\u003e return Ok(()), // No liquidity\n        };\n\n        // Calculate spread\n        let spread_pct = match (bid, ask) {\n            (bid, ask) if bid \u003e dec!(0) \u0026\u0026 ask \u003e bid =\u003e {\n                (ask - bid) / bid * dec!(100)\n            }\n            _ =\u003e return Ok(()),\n        };\n\n        // Check if spread is within our target\n        if spread_pct \u003c= self.max_spread_pct {\n            self.stats.opportunities_detected += 1;\n            \n            info!(\n                \"Opportunity detected: spread {}% (target: {}%)\",\n                spread_pct, self.max_spread_pct\n            );\n\n            // Execute snipe order\n            self.execute_snipe_order(bid, ask)?;\n        }\n\n        Ok(())\n    }\n\n    /// Execute a snipe order\n    fn execute_snipe_order(\u0026mut self, bid: Decimal, ask: Decimal) -\u003e Result\u003c()\u003e {\n        // Calculate order size (random between min and max)\n        let random_factor = Decimal::from(rand::random::\u003cu64\u003e() % 100) / Decimal::from(100);\n        let size = self.min_order_size + \n            (self.max_order_size - self.min_order_size) * random_factor;\n\n        // Determine side based on market conditions\n        let side = if bid \u003e ask {\n            Side::SELL // Crossed market, sell\n        } else {\n            Side::BUY // Normal market, buy\n        };\n\n        // Create market order request\n        let request = MarketOrderRequest {\n            token_id: self.token_id.clone(),\n            side,\n            amount: size,\n            slippage_tolerance: Some(dec!(1.0)), // 1% slippage tolerance\n            client_id: Some(format!(\"snipe_{}\", time::now_millis())),\n        };\n\n        // Get current book for execution simulation\n        let book = self.book_manager.get_book(\u0026self.token_id)?;\n        let mut book_impl = polyfill_rs::book::OrderBook::new(self.token_id.clone(), 100);\n        \n        // Convert to internal book format\n        for level in \u0026book.bids {\n            book_impl.apply_delta(OrderDelta {\n                token_id: self.token_id.clone(),\n                timestamp: chrono::Utc::now(),\n                side: Side::BUY,\n                price: level.price,\n                size: level.size,\n                sequence: 1,\n            })?;\n        }\n        \n        for level in \u0026book.asks {\n            book_impl.apply_delta(OrderDelta {\n                token_id: self.token_id.clone(),\n                timestamp: chrono::Utc::now(),\n                side: Side::SELL,\n                price: level.price,\n                size: level.size,\n                sequence: 2,\n            })?;\n        }\n\n        // Execute order\n        let start_time = std::time::Instant::now();\n        let result = self.fill_engine.execute_market_order(\u0026request, \u0026book_impl)?;\n        let fill_time = start_time.elapsed().as_millis() as f64;\n\n        // Update statistics\n        self.stats.orders_placed += 1;\n        if result.status == FillStatus::Filled {\n            self.stats.orders_filled += 1;\n        }\n\n        // Update average fill time\n        let total_time = self.stats.avg_fill_time_ms * (self.stats.orders_filled - 1) as f64 + fill_time;\n        self.stats.avg_fill_time_ms = total_time / self.stats.orders_filled as f64;\n\n        info!(\n            \"Snipe order executed: {} {} @ {} (fill time: {}ms)\",\n            result.total_size,\n            side.as_str(),\n            result.average_price,\n            fill_time\n        );\n\n        Ok(())\n    }\n\n    /// Check for stale quotes\n    fn check_stale_quotes(\u0026mut self) -\u003e Result\u003c()\u003e {\n        let now = time::now_secs();\n        let age = now.saturating_sub(self.last_update);\n\n        if age \u003e self.stale_threshold {\n            warn!(\n                \"Stale quotes detected: {}s old (threshold: {}s)\",\n                age, self.stale_threshold\n            );\n\n            // In a real implementation, you might:\n            // - Cancel pending orders\n            // - Switch to a different data source\n            // - Reduce position sizes\n            // - Stop trading temporarily\n        }\n\n        Ok(())\n    }\n\n    /// Get current statistics\n    pub fn get_stats(\u0026self) -\u003e \u0026SnipeStats {\n        \u0026self.stats\n    }\n}\n\n/// Mock market data generator for testing\nstruct MockMarketData {\n    token_id: String,\n    base_price: Decimal,\n    volatility: Decimal,\n    sequence: u64,\n}\n\nimpl MockMarketData {\n    fn new(token_id: String, base_price: Decimal) -\u003e Self {\n        Self {\n            token_id,\n            base_price,\n            volatility: dec!(0.01), // 1% volatility\n            sequence: 0,\n        }\n    }\n\n    fn generate_update(\u0026mut self) -\u003e StreamMessage {\n        self.sequence += 1;\n\n        // Generate random price movement\n        let random_factor = Decimal::from(rand::random::\u003ci64\u003e() % 100 - 50) / Decimal::from(100);\n        let volatility_f64 = self.volatility.to_f64().unwrap_or(0.01);\n        let price_change = random_factor * Decimal::from(2) * self.volatility;\n        let new_price = self.base_price * (Decimal::from(1) + price_change);\n\n        // Generate order book update\n        let side = if rand::random::\u003cbool\u003e() { Side::BUY } else { Side::SELL };\n        let size = Decimal::from(rand::random::\u003cu64\u003e() % 1000 + 100);\n\n        StreamMessage::BookUpdate {\n            data: OrderDelta {\n                token_id: self.token_id.clone(),\n                timestamp: chrono::Utc::now(),\n                side,\n                price: new_price,\n                size,\n                sequence: self.sequence,\n            }\n        }\n    }\n}\n\n#[tokio::main]\nasync fn main() -\u003e Result\u003c()\u003e {\n    // Initialize logging\n    tracing_subscriber::fmt::init();\n\n    info!(\"Starting snipe trading example...\");\n\n    // Create snipe strategy\n    let mut strategy = SnipeStrategy::new(\n        \"12345\".to_string(), // Example token ID\n        dec!(2.0),           // 2% max spread\n        dec!(10),            // Min order size\n        dec!(100),           // Max order size\n        5,                   // 5 second stale threshold\n    );\n\n    // Create mock market data generator\n    let mut market_data = MockMarketData::new(\n        \"12345\".to_string(),\n        dec!(0.5), // Base price $0.50\n    );\n\n    // Simulate market data stream\n    let mut message_count = 0;\n    let max_messages = 100;\n\n    while message_count \u003c max_messages {\n        // Generate market update\n        let update = market_data.generate_update();\n        \n        // Process update\n        if let Err(e) = strategy.process_update(update) {\n            error!(\"Error processing update: {}\", e);\n        }\n\n        // Print statistics every 10 messages\n        if message_count % 10 == 0 {\n            let stats = strategy.get_stats();\n            info!(\n                \"Stats: {} opportunities, {} orders placed, {} filled, avg fill time: {:.2}ms\",\n                stats.opportunities_detected,\n                stats.orders_placed,\n                stats.orders_filled,\n                stats.avg_fill_time_ms\n            );\n        }\n\n        message_count += 1;\n        sleep(Duration::from_millis(100)).await; // 100ms between updates\n    }\n\n    // Print final statistics\n    let final_stats = strategy.get_stats();\n    info!(\"Final statistics:\");\n    info!(\"  Opportunities detected: {}\", final_stats.opportunities_detected);\n    info!(\"  Orders placed: {}\", final_stats.orders_placed);\n    info!(\"  Orders filled: {}\", final_stats.orders_filled);\n    info!(\"  Total volume: {}\", final_stats.total_volume);\n    info!(\"  Average fill time: {:.2}ms\", final_stats.avg_fill_time_ms);\n\n    info!(\"Snipe trading example completed!\");\n    Ok(())\n} ","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","config.rs"],"content":"pub struct ContractConfig {\n    pub exchange: String,\n    pub collateral: String,\n    pub conditional_tokens: String,\n}\n\npub fn get_contract_config(chain_id: u64, neg_risk: bool) -\u003e Option\u003cContractConfig\u003e {\n    match neg_risk {\n        true =\u003e {\n            if chain_id == 137 {\n                return Some(ContractConfig {\n                    exchange: \"0xC5d563A36AE78145C45a50134d48A1215220f80a\".to_owned(),\n                    collateral: \"0x2791bca1f2de4661ed88a30c99a7a9449aa84174\".to_owned(),\n                    conditional_tokens: \"0x4D97DCd97eC945f40cF65F87097ACe5EA0476045\".to_owned(),\n                });\n            } else if chain_id == 80002 {\n                return Some(ContractConfig {\n                    exchange: \"0xd91E80cF2E7be2e162c6513ceD06f1dD0dA35296\".to_owned(),\n                    collateral: \"0x9c4e1703476e875070ee25b56a58b008cfb8fa78\".to_owned(),\n                    conditional_tokens: \"0x69308FB512518e39F9b16112fA8d994F4e2Bf8bB\".to_owned(),\n                });\n            }\n            None\n        }\n        false =\u003e {\n            if chain_id == 137 {\n                return Some(ContractConfig {\n                    exchange: \"0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E\".to_owned(),\n                    collateral: \"0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174\".to_owned(),\n                    conditional_tokens: \"0x4D97DCd97eC945f40cF65F87097ACe5EA0476045\".to_owned(),\n                });\n            } else if chain_id == 80002 {\n                return Some(ContractConfig {\n                    exchange: \"0xdFE02Eb6733538f8Ea35D585af8DE5958AD99E40\".to_owned(),\n                    collateral: \"0x9c4e1703476e875070ee25b56a58b008cfb8fa78\".to_owned(),\n                    conditional_tokens: \"0x69308FB512518e39F9b16112fA8d994F4e2Bf8bB\".to_owned(),\n                });\n            }\n            None\n        }\n    }\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","data.rs"],"content":"use crate::Decimal;\n\nuse crate::SignedOrderRequest;\nuse alloy_primitives::U256;\nuse serde::{Deserialize, Deserializer, Serialize};\nuse serde_json::Value;\nuse std::fmt::Display;\nuse std::str::FromStr;\n\nconst ZERO_ADDRESS: \u0026str = \"0x0000000000000000000000000000000000000000\";\n\npub enum AssetType {\n    COLLATERAL,\n    CONDITIONAL,\n}\n\n#[allow(clippy::to_string_trait_impl)]\nimpl ToString for AssetType {\n    fn to_string(\u0026self) -\u003e String {\n        match self {\n            AssetType::COLLATERAL =\u003e \"COLLATERAL\".to_string(),\n            AssetType::CONDITIONAL =\u003e \"CONDITIONAL\".to_string(),\n        }\n    }\n}\n\n#[derive(Default)]\npub struct BalanceAllowanceParams {\n    pub asset_type: Option\u003cAssetType\u003e,\n    pub token_id: Option\u003cString\u003e,\n    pub signature_type: Option\u003cu8\u003e,\n}\n\nimpl BalanceAllowanceParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, String)\u003e {\n        let mut params = Vec::with_capacity(3);\n\n        if let Some(x) = \u0026self.asset_type {\n            params.push((\"asset_type\", x.to_string()));\n        }\n\n        if let Some(x) = \u0026self.token_id {\n            params.push((\"token_id\", x.to_string()));\n        }\n\n        if let Some(x) = \u0026self.signature_type {\n            params.push((\"signature_type\", x.to_string()));\n        }\n        params\n    }\n}\n\nimpl BalanceAllowanceParams {\n    pub fn set_signature_type(\u0026mut self, s: u8) {\n        self.signature_type = Some(s);\n    }\n}\n\n#[derive(Debug)]\npub struct TradeParams {\n    pub id: Option\u003cString\u003e,\n    pub maker_address: Option\u003cString\u003e,\n    pub market: Option\u003cString\u003e,\n    pub asset_id: Option\u003cString\u003e,\n    pub before: Option\u003cu64\u003e,\n    pub after: Option\u003cu64\u003e,\n}\n\nimpl TradeParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, String)\u003e {\n        let mut params = Vec::with_capacity(4);\n\n        if let Some(x) = \u0026self.id {\n            params.push((\"id\", x.clone()));\n        }\n\n        if let Some(x) = \u0026self.asset_id {\n            params.push((\"asset_id\", x.clone()));\n        }\n\n        if let Some(x) = \u0026self.market {\n            params.push((\"market\", x.clone()));\n        }\n        if let Some(x) = \u0026self.before {\n            params.push((\"before\", x.to_string()));\n        }\n        if let Some(x) = \u0026self.after {\n            params.push((\"after\", x.to_string()));\n        }\n        params\n    }\n}\n\n#[derive(Debug, Deserialize)]\npub struct OpenOrder {\n    pub associate_trades: Vec\u003cString\u003e,\n    pub id: String,\n    pub status: String,\n    pub market: String,\n\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub original_size: Decimal,\n    pub outcome: String,\n    pub maker_address: String,\n    pub owner: String,\n\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    pub side: Side,\n\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size_matched: Decimal,\n    pub asset_id: String,\n    #[serde(deserialize_with = \"deserialize_number_from_string\")]\n    pub expiration: u64,\n    #[serde(rename = \"type\")]\n    pub order_type: OrderType,\n    #[serde(deserialize_with = \"deserialize_number_from_string\")]\n    pub created_at: u64,\n}\n\n#[derive(Debug)]\npub struct OpenOrderParams {\n    pub id: Option\u003cString\u003e,\n    pub asset_id: Option\u003cString\u003e,\n    pub market: Option\u003cString\u003e,\n}\n\nimpl OpenOrderParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, \u0026String)\u003e {\n        let mut params = Vec::with_capacity(4);\n\n        if let Some(x) = \u0026self.id {\n            params.push((\"id\", x));\n        }\n\n        if let Some(x) = \u0026self.asset_id {\n            params.push((\"asset_id\", x));\n        }\n\n        if let Some(x) = \u0026self.market {\n            params.push((\"market\", x));\n        }\n        params\n    }\n}\n\nfn deserialize_number_from_string\u003c'de, T, D\u003e(deserializer: D) -\u003e Result\u003cT, D::Error\u003e\nwhere\n    D: Deserializer\u003c'de\u003e,\n    T: FromStr + serde::Deserialize\u003c'de\u003e,\n    \u003cT as FromStr\u003e::Err: Display,\n{\n    #[derive(Deserialize)]\n    #[serde(untagged)]\n    enum StringOrInt\u003cT\u003e {\n        String(String),\n        Number(T),\n    }\n\n    match StringOrInt::\u003cT\u003e::deserialize(deserializer)? {\n        StringOrInt::String(s) =\u003e s.parse::\u003cT\u003e().map_err(serde::de::Error::custom),\n        StringOrInt::Number(i) =\u003e Ok(i),\n    }\n}\n\n#[derive(Debug, Serialize)]\n#[serde(rename_all = \"camelCase\")]\npub struct PostOrder {\n    order: SignedOrderRequest,\n    owner: String,\n    order_type: OrderType,\n}\n\nimpl PostOrder {\n    pub fn new(order: SignedOrderRequest, owner: String, order_type: OrderType) -\u003e Self {\n        PostOrder {\n            order,\n            owner,\n            order_type,\n        }\n    }\n}\n\n#[derive(Debug)]\npub struct OrderArgs {\n    pub token_id: String,\n    pub price: Decimal,\n    pub size: Decimal,\n    pub side: Side,\n}\n\n#[derive(Debug, Deserialize)]\npub struct OrderBookSummary {\n    pub market: String,\n    pub asset_id: String,\n    pub hash: String,\n    #[serde(deserialize_with = \"deserialize_number_from_string\")]\n    pub timestamp: u64,\n    pub bids: Vec\u003cOrderSummary\u003e,\n    pub asks: Vec\u003cOrderSummary\u003e,\n}\n\n#[derive(Debug)]\npub struct MarketOrderArgs {\n    pub token_id: String,\n    pub amount: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct OrderSummary {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size: Decimal,\n}\n\nimpl OrderArgs {\n    pub fn new(token_id: \u0026str, price: Decimal, size: Decimal, side: Side) -\u003e Self {\n        OrderArgs {\n            token_id: token_id.to_owned(),\n            price,\n            size,\n            side,\n        }\n    }\n}\n\n#[derive(Debug)]\npub struct ExtraOrderArgs {\n    pub fee_rate_bps: u32,\n    pub nonce: U256,\n    pub taker: String,\n}\n\nimpl Default for ExtraOrderArgs {\n    fn default() -\u003e Self {\n        ExtraOrderArgs {\n            fee_rate_bps: 0,\n            nonce: U256::ZERO,\n            taker: ZERO_ADDRESS.into(),\n        }\n    }\n}\n\n#[derive(Debug, Default)]\npub struct CreateOrderOptions {\n    pub tick_size: Option\u003cDecimal\u003e,\n    pub neg_risk: Option\u003cbool\u003e,\n}\n\n#[derive(Debug, Deserialize)]\npub struct ApiKeysResponse {\n    #[serde(rename = \"apiKeys\")]\n    pub api_keys: Vec\u003cString\u003e,\n}\n\n#[derive(Debug, Deserialize, Serialize)]\npub struct MidpointResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub mid: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct PriceResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct SpreadResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub spread: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct TickSizeResponse {\n    pub minimum_tick_size: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct NegRiskResponse {\n    pub neg_risk: bool,\n}\n\n#[derive(Debug, Serialize, Deserialize, Clone, Copy, Hash, Eq, PartialEq)]\npub enum OrderType {\n    GTC,\n    FOK,\n    GTD,\n}\n\nimpl OrderType {\n    pub fn as_str(\u0026self) -\u003e \u0026'static str {\n        match self {\n            OrderType::GTC =\u003e \"GTC\",\n            OrderType::FOK =\u003e \"FOK\",\n            OrderType::GTD =\u003e \"GTD\",\n        }\n    }\n}\n\n#[derive(Debug, Serialize, Deserialize, Clone, Copy, Hash, Eq, PartialEq)]\npub enum Side {\n    BUY = 0,\n    SELL = 1,\n}\n\nimpl Side {\n    pub fn as_str(\u0026self) -\u003e \u0026'static str {\n        match self {\n            Side::BUY =\u003e \"BUY\",\n            Side::SELL =\u003e \"SELL\",\n        }\n    }\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct BookParams {\n    pub token_id: String,\n    pub side: Side,\n}\n\n#[derive(Default, Debug, Serialize, Deserialize)]\npub struct ApiCreds {\n    #[serde(rename = \"apiKey\")]\n    pub api_key: String,\n    pub secret: String,\n    pub passphrase: String,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct MarketsResponse {\n    pub limit: Decimal,\n    pub count: Decimal,\n    pub next_cursor: Option\u003cString\u003e,\n    pub data: Vec\u003cMarket\u003e,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct SimplifiedMarketsResponse {\n    pub limit: Decimal,\n    pub count: Decimal,\n    pub next_cursor: Option\u003cString\u003e,\n    pub data: Vec\u003cSimplifiedMarket\u003e,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct Market {\n    pub condition_id: String,\n    pub tokens: [Token; 2],\n    pub rewards: Rewards,\n    pub min_incentive_size: Option\u003cString\u003e,\n    pub max_incentive_spread: Option\u003cString\u003e,\n    pub active: bool,\n    pub closed: bool,\n\n    pub question_id: String,\n    pub minimum_order_size: Decimal,\n    pub minimum_tick_size: Decimal,\n    pub description: String,\n    pub category: Option\u003cString\u003e,\n    pub end_date_iso: Option\u003cString\u003e,\n    pub game_start_time: Option\u003cString\u003e,\n    pub question: String,\n    pub market_slug: String,\n    pub seconds_delay: Decimal,\n    pub icon: String,\n    pub fpmm: String,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct SimplifiedMarket {\n    pub condition_id: String,\n    pub tokens: [Token; 2],\n    pub rewards: Rewards,\n    pub min_incentive_size: Option\u003cString\u003e,\n    pub max_incentive_spread: Option\u003cString\u003e,\n    pub active: bool,\n    pub closed: bool,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct Token {\n    pub token_id: String,\n    pub outcome: String,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct Rewards {\n    pub rates: Option\u003cValue\u003e,\n    pub min_size: Decimal,\n    pub max_spread: Decimal,\n    pub event_start_date: Option\u003cString\u003e,\n    pub event_end_date: Option\u003cString\u003e,\n    pub in_game_multiplier: Option\u003cDecimal\u003e,\n    pub reward_epoch: Option\u003cDecimal\u003e,\n}\n","traces":[{"line":161,"address":[],"length":0,"stats":{"Line":0}},{"line":162,"address":[],"length":0,"stats":{"Line":0}},{"line":163,"address":[],"length":0,"stats":{"Line":0}}],"covered":0,"coverable":3},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","eth_utils.rs"],"content":"use crate::ClientResult;\nuse alloy_primitives::U256;\nuse alloy_primitives::{hex::encode_prefixed, Address};\nuse alloy_signer::{Signer, SignerSync};\nuse alloy_sol_types::{eip712_domain, sol};\nuse anyhow::Context;\n\npub trait EthSigner: Signer + SignerSync + Send + Sync {}\n\nimpl\u003cT: Signer + SignerSync + Send + Sync\u003e EthSigner for T {}\n\nsol! {\n    struct ClobAuth {\n        address address;\n        string timestamp;\n        uint256 nonce;\n        string message;\n    }\n}\n\nsol! {\n    struct Order {\n        uint256 salt;\n        address maker;\n        address signer;\n        address taker;\n        uint256 tokenId;\n        uint256 makerAmount;\n        uint256 takerAmount;\n        uint256 expiration;\n        uint256 nonce;\n        uint256 feeRateBps;\n        uint8 side;\n        uint8 signatureType;\n    }\n}\n\npub fn sign_clob_auth_message(\n    signer: \u0026impl EthSigner,\n    timestamp: String,\n    nonce: U256,\n) -\u003e ClientResult\u003cString\u003e {\n    // TODO: move these constants out\n    let message = \"This message attests that I control the given wallet\".to_owned();\n    let polygon = 137;\n\n    let my_struct = ClobAuth {\n        address: signer.address(),\n        timestamp,\n        nonce,\n        message,\n    };\n\n    let my_domain = eip712_domain!(\n        name: \"ClobAuthDomain\",\n        version: \"1\",\n        chain_id: polygon,\n    );\n\n    let val = signer\n        .sign_typed_data_sync(\u0026my_struct, \u0026my_domain)\n        .context(\"Error creating EIP-712 signature\")?;\n\n    Ok(encode_prefixed(val.as_bytes()))\n}\n\npub fn sign_order_message(\n    signer: \u0026(impl EthSigner + Sized),\n    order: Order,\n    chain_id: u64,\n    verifying_contract: Address,\n) -\u003e ClientResult\u003cString\u003e {\n    let domain = eip712_domain!(\n        name: \"Polymarket CTF Exchange\",\n        version: \"1\",\n        chain_id: chain_id,\n        verifying_contract: verifying_contract,\n\n    );\n\n    let val = signer\n        .sign_typed_data_sync(\u0026order, \u0026domain)\n        .context(\"Error creating EIP-712 signature for order\")?;\n\n    Ok(encode_prefixed(val.as_bytes()))\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","headers.rs"],"content":"use crate::eth_utils::{sign_clob_auth_message, EthSigner};\nuse crate::utils::{build_hmac_signature, get_current_unix_time_secs};\nuse crate::ApiCreds;\nuse alloy_primitives::hex::encode_prefixed;\nuse alloy_primitives::U256;\nuse anyhow::Result;\nuse serde::Serialize;\nuse std::collections::HashMap;\n\nconst POLY_ADDR_HEADER: \u0026str = \"poly_address\";\nconst POLY_SIG_HEADER: \u0026str = \"poly_signature\";\nconst POLY_TS_HEADER: \u0026str = \"poly_timestamp\";\nconst POLY_NONCE_HEADER: \u0026str = \"poly_nonce\";\nconst POLY_API_KEY_HEADER: \u0026str = \"poly_api_key\";\nconst POLY_PASS_HEADER: \u0026str = \"poly_passphrase\";\n\n//TODO: Heapless for maps!\ntype Headers = HashMap\u003c\u0026'static str, String\u003e;\n\npub fn create_l1_headers(signer: \u0026impl EthSigner, nonce: Option\u003cU256\u003e) -\u003e Result\u003cHeaders\u003e {\n    let timestamp = get_current_unix_time_secs().to_string();\n    let nonce = nonce.unwrap_or(U256::ZERO);\n    let signature = sign_clob_auth_message(signer, timestamp.clone(), nonce)?;\n    let address = encode_prefixed(signer.address().as_slice());\n\n    Ok(HashMap::from([\n        (POLY_ADDR_HEADER, address),\n        (POLY_SIG_HEADER, signature),\n        (POLY_TS_HEADER, timestamp),\n        (POLY_NONCE_HEADER, nonce.to_string()),\n    ]))\n}\n\npub fn create_l2_headers\u003cT\u003e(\n    signer: \u0026impl EthSigner,\n    api_creds: \u0026ApiCreds,\n    method: \u0026str,\n    req_path: \u0026str,\n    body: Option\u003c\u0026T\u003e,\n) -\u003e Result\u003cHeaders\u003e\nwhere\n    T: ?Sized + Serialize,\n{\n    let address = encode_prefixed(signer.address().as_slice());\n    let timestamp = get_current_unix_time_secs();\n\n    let hmac_signature =\n        build_hmac_signature(\u0026api_creds.secret, timestamp, method, req_path, body)?;\n\n    Ok(HashMap::from([\n        (POLY_ADDR_HEADER, address),\n        (POLY_SIG_HEADER, hmac_signature),\n        (POLY_TS_HEADER, timestamp.to_string()),\n        (POLY_API_KEY_HEADER, api_creds.api_key.clone()),\n        (POLY_PASS_HEADER, api_creds.passphrase.clone()),\n    ]))\n}\n","traces":[{"line":44,"address":[],"length":0,"stats":{"Line":0}},{"line":45,"address":[],"length":0,"stats":{"Line":0}},{"line":47,"address":[],"length":0,"stats":{"Line":0}},{"line":48,"address":[],"length":0,"stats":{"Line":0}},{"line":50,"address":[],"length":0,"stats":{"Line":0}},{"line":51,"address":[],"length":0,"stats":{"Line":0}},{"line":52,"address":[],"length":0,"stats":{"Line":0}},{"line":53,"address":[],"length":0,"stats":{"Line":0}},{"line":54,"address":[],"length":0,"stats":{"Line":0}},{"line":55,"address":[],"length":0,"stats":{"Line":0}}],"covered":0,"coverable":10},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","lib.rs"],"content":"use alloy_primitives::hex::encode_prefixed;\npub use alloy_primitives::U256;\nuse alloy_signer_local::PrivateKeySigner;\npub use anyhow::{anyhow, Context, Result as ClientResult};\nuse config::get_contract_config;\nuse orders::OrderBuilder;\nuse orders::SignedOrderRequest;\nuse reqwest::header::HeaderName;\nuse reqwest::Client;\nuse reqwest::Method;\nuse reqwest::RequestBuilder;\nuse rust_decimal::Decimal;\npub use serde_json::Value;\nuse std::collections::HashMap;\n\n// #[cfg(test)]\n// mod tests;\n\nmod config;\nmod data;\nmod eth_utils;\nmod headers;\nmod orders;\nmod utils;\n\npub use data::*;\npub use eth_utils::EthSigner;\nuse headers::{create_l1_headers, create_l2_headers};\n\n#[derive(Default)]\npub struct ClobClient {\n    host: String,\n    http_client: Client,\n    signer: Option\u003cBox\u003cdyn EthSigner\u003e\u003e,\n    chain_id: Option\u003cu64\u003e,\n    api_creds: Option\u003cApiCreds\u003e,\n    order_builder: Option\u003cOrderBuilder\u003e,\n}\n\nconst INITIAL_CURSOR: \u0026str = \"MA==\";\nconst END_CURSOR: \u0026str = \"LTE=\";\n\nimpl ClobClient {\n    // TODO: initial headers, gzip\n    pub fn new(host: \u0026str) -\u003e Self {\n        Self {\n            host: host.to_owned(),\n            http_client: Client::new(),\n            ..Default::default()\n        }\n    }\n    pub fn with_l1_headers(host: \u0026str, key: \u0026str, chain_id: u64) -\u003e Self {\n        let signer = Box::new(\n            key.parse::\u003cPrivateKeySigner\u003e()\n                .expect(\"Invalid private key\"),\n        );\n        Self {\n            host: host.to_owned(),\n            http_client: Client::new(),\n            signer: Some(signer.clone()),\n            chain_id: Some(chain_id),\n            api_creds: None,\n            order_builder: Some(OrderBuilder::new(signer, None, None)),\n        }\n    }\n\n    pub fn with_l2_headers(host: \u0026str, key: \u0026str, chain_id: u64, api_creds: ApiCreds) -\u003e Self {\n        let signer = Box::new(\n            key.parse::\u003cPrivateKeySigner\u003e()\n                .expect(\"Invalid private key\"),\n        );\n        Self {\n            host: host.to_owned(),\n            http_client: Client::new(),\n            signer: Some(signer.clone()),\n            chain_id: Some(chain_id),\n            api_creds: Some(api_creds),\n            order_builder: Some(OrderBuilder::new(signer, None, None)),\n        }\n    }\n    pub fn set_api_creds(\u0026mut self, api_creds: ApiCreds) {\n        self.api_creds = Some(api_creds);\n    }\n\n    #[inline]\n    fn get_l1_parameters(\u0026self) -\u003e (\u0026impl EthSigner, u64) {\n        let signer = self.signer.as_ref().expect(\"Signer is not set\");\n        let chain_id = self.chain_id.expect(\"Chain id is not set\");\n        (signer, chain_id)\n    }\n\n    #[inline]\n    fn get_l2_parameters(\u0026self) -\u003e (\u0026impl EthSigner, \u0026ApiCreds) {\n        let signer = self.signer.as_ref().expect(\"Signer is not set\");\n        (\n            signer,\n            self.api_creds.as_ref().expect(\"API credentials not set.\"),\n        )\n    }\n\n    pub fn get_address(\u0026self) -\u003e Option\u003cString\u003e {\n        Some(encode_prefixed(self.signer.as_ref()?.address().as_slice()))\n    }\n\n    pub fn get_collateral_address(\u0026self) -\u003e Option\u003cString\u003e {\n        Some(get_contract_config(self.chain_id?, false)?.collateral)\n    }\n\n    pub fn get_conditional_address(\u0026self) -\u003e Option\u003cString\u003e {\n        Some(get_contract_config(self.chain_id?, false)?.conditional_tokens)\n    }\n\n    pub fn get_exchange_address(\u0026self) -\u003e Option\u003cString\u003e {\n        Some(get_contract_config(self.chain_id?, false)?.exchange)\n    }\n\n    fn create_request_with_headers(\n        \u0026self,\n        method: Method,\n        endpoint: \u0026str,\n        headers: impl Iterator\u003cItem = (\u0026'static str, String)\u003e,\n    ) -\u003e RequestBuilder {\n        let req = self\n            .http_client\n            .request(method, format!(\"{}{endpoint}\", \u0026self.host));\n\n        headers.fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v))\n    }\n\n    pub async fn get_ok(\u0026self) -\u003e bool {\n        self.http_client\n            .get(format!(\"{}/\", \u0026self.host))\n            .send()\n            .await\n            .is_ok()\n    }\n\n    pub async fn get_server_time(\u0026self) -\u003e ClientResult\u003cu64\u003e {\n        let resp = self\n            .http_client\n            .get(format!(\"{}/time\", \u0026self.host))\n            .send()\n            .await?\n            .text()\n            .await?\n            .parse::\u003cu64\u003e()?;\n        Ok(resp)\n    }\n\n    pub async fn create_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e ClientResult\u003cApiCreds\u003e {\n        let method = Method::POST;\n        let endpoint = \"/auth/api-key\";\n        let (signer, _) = self.get_l1_parameters();\n        let headers = create_l1_headers(signer, nonce)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.json::\u003cApiCreds\u003e().await?)\n    }\n\n    pub async fn derive_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e ClientResult\u003cApiCreds\u003e {\n        let method = Method::GET;\n        let endpoint = \"/auth/derive-api-key\";\n        let (signer, _) = self.get_l1_parameters();\n        let headers = create_l1_headers(signer, nonce)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.json::\u003cApiCreds\u003e().await?)\n    }\n\n    pub async fn create_or_derive_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e ClientResult\u003cApiCreds\u003e {\n        let creds = self.create_api_key(nonce).await;\n        if creds.is_err() {\n            return self.derive_api_key(nonce).await;\n        }\n        creds\n    }\n\n    pub async fn get_api_keys(\u0026self) -\u003e ClientResult\u003cVec\u003cString\u003e\u003e {\n        let method = Method::GET;\n        let endpoint = \"/auth/api-keys\";\n        let (signer, creds) = self.get_l2_parameters();\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.json::\u003cApiKeysResponse\u003e().await?.api_keys)\n    }\n\n    pub async fn delete_api_key(\u0026self) -\u003e ClientResult\u003cString\u003e {\n        let method = Method::DELETE;\n        let endpoint = \"/auth/api-key\";\n        let (signer, creds) = self.get_l2_parameters();\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.text().await?)\n    }\n\n    pub async fn get_midpoint(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cMidpointResponse\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/midpoint\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cMidpointResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_midpoints(\n        \u0026self,\n        token_ids: \u0026[String],\n    ) -\u003e ClientResult\u003cHashMap\u003cString, Decimal\u003e\u003e {\n        let v = token_ids\n            .iter()\n            .map(|b| HashMap::from([(\"token_id\", b.clone())]))\n            .collect::\u003cVec\u003cHashMap\u003c\u0026str, String\u003e\u003e\u003e();\n\n        Ok(self\n            .http_client\n            .post(format!(\"{}/midpoints\", \u0026self.host))\n            .json(\u0026v)\n            .send()\n            .await?\n            .json::\u003cHashMap\u003cString, Decimal\u003e\u003e()\n            .await?)\n    }\n\n    pub async fn get_price(\u0026self, token_id: \u0026str, side: Side) -\u003e ClientResult\u003cPriceResponse\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/price\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .query(\u0026[(\"side\", side.as_str())])\n            .send()\n            .await?\n            .json::\u003cPriceResponse\u003e()\n            .await?)\n    }\n    pub async fn get_prices(\n        \u0026self,\n        book_params: \u0026[BookParams],\n    ) -\u003e ClientResult\u003cHashMap\u003cString, HashMap\u003cSide, Decimal\u003e\u003e\u003e {\n        let v = book_params\n            .iter()\n            .map(|b| {\n                HashMap::from([\n                    (\"token_id\", b.token_id.clone()),\n                    (\"side\", b.side.as_str().to_owned()),\n                ])\n            })\n            .collect::\u003cVec\u003cHashMap\u003c\u0026str, String\u003e\u003e\u003e();\n\n        Ok(self\n            .http_client\n            .post(format!(\"{}/prices\", \u0026self.host))\n            .json(\u0026v)\n            .send()\n            .await?\n            .json::\u003cHashMap\u003cString, HashMap\u003cSide, Decimal\u003e\u003e\u003e()\n            .await?)\n    }\n\n    pub async fn get_spread(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cSpreadResponse\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/spread\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cSpreadResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_spreads(\n        \u0026self,\n        token_ids: \u0026[String],\n    ) -\u003e ClientResult\u003cHashMap\u003cString, Decimal\u003e\u003e {\n        let v = token_ids\n            .iter()\n            .map(|b| HashMap::from([(\"token_id\", b.clone())]))\n            .collect::\u003cVec\u003cHashMap\u003c\u0026str, String\u003e\u003e\u003e();\n\n        Ok(self\n            .http_client\n            .post(format!(\"{}/spreads\", \u0026self.host))\n            .json(\u0026v)\n            .send()\n            .await?\n            .json::\u003cHashMap\u003cString, Decimal\u003e\u003e()\n            .await?)\n    }\n\n    // cache\n    pub async fn get_tick_size(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cDecimal\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/tick-size\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cTickSizeResponse\u003e()\n            .await?\n            .minimum_tick_size)\n    }\n    // Cache\n    pub async fn get_neg_risk(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cbool\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/neg-risk\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cNegRiskResponse\u003e()\n            .await?\n            .neg_risk)\n    }\n\n    async fn resolve_tick_size(\n        \u0026self,\n        token_id: \u0026str,\n        tick_size: Option\u003cDecimal\u003e,\n    ) -\u003e ClientResult\u003cDecimal\u003e {\n        let min_tick_size = self\n            .get_tick_size(token_id)\n            .await\n            .context(\"Error fetching tick size\")?;\n\n        match tick_size {\n            None =\u003e Ok(min_tick_size),\n            Some(t) =\u003e {\n                if t \u003c min_tick_size {\n                    Err(anyhow!(\"Tick size {t} is smaller than min_tick_size {min_tick_size} for token_id: {token_id}\"))\n                } else {\n                    Ok(t)\n                }\n            }\n        }\n    }\n\n    async fn get_filled_order_options(\n        \u0026self,\n        token_id: \u0026str,\n        options: Option\u003c\u0026CreateOrderOptions\u003e,\n    ) -\u003e ClientResult\u003cCreateOrderOptions\u003e {\n        let (tick_size, neg_risk) = match options {\n            Some(o) =\u003e (o.tick_size, o.neg_risk),\n            None =\u003e (None, None),\n        };\n\n        let tick_size = self.resolve_tick_size(token_id, tick_size).await?;\n\n        let neg_risk = match neg_risk {\n            Some(nr) =\u003e nr,\n            None =\u003e self.get_neg_risk(token_id).await?,\n        };\n\n        Ok(CreateOrderOptions {\n            neg_risk: Some(neg_risk),\n            tick_size: Some(tick_size),\n        })\n    }\n\n    fn is_price_in_range(\u0026self, price: Decimal, tick_size: Decimal) -\u003e bool {\n        let min_price = tick_size;\n        let max_price = Decimal::ONE - tick_size;\n\n        if price \u003c min_price || price \u003e max_price {\n            return false;\n        }\n        true\n    }\n\n    pub async fn create_order(\n        \u0026self,\n        order_args: \u0026OrderArgs,\n        expiration: Option\u003cu64\u003e,\n        extras: Option\u003cExtraOrderArgs\u003e,\n        options: Option\u003c\u0026CreateOrderOptions\u003e,\n    ) -\u003e ClientResult\u003cSignedOrderRequest\u003e {\n        let (_, chain_id) = self.get_l1_parameters();\n\n        let create_order_options = self\n            .get_filled_order_options(order_args.token_id.as_ref(), options)\n            .await?;\n        let expiration = expiration.unwrap_or(0);\n        let extras = extras.unwrap_or_default();\n\n        if !self.is_price_in_range(\n            order_args.price,\n            create_order_options.tick_size.expect(\"Should be filled\"),\n        ) {\n            return Err(anyhow!(\"Price is not in range of tick_size\"));\n        }\n\n        self.order_builder\n            .as_ref()\n            .expect(\"OrderBuilder not set\")\n            .create_order(\n                chain_id,\n                order_args,\n                expiration,\n                \u0026extras,\n                create_order_options,\n            )\n    }\n\n    pub async fn get_order_book(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cOrderBookSummary\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/book\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cOrderBookSummary\u003e()\n            .await?)\n    }\n\n    pub async fn get_order_books(\n        \u0026self,\n        token_ids: \u0026[String],\n    ) -\u003e ClientResult\u003cVec\u003cOrderBookSummary\u003e\u003e {\n        let v = token_ids\n            .iter()\n            .map(|b| HashMap::from([(\"token_id\", b.clone())]))\n            .collect::\u003cVec\u003cHashMap\u003c\u0026str, String\u003e\u003e\u003e();\n\n        Ok(self\n            .http_client\n            .post(format!(\"{}/books\", \u0026self.host))\n            .json(\u0026v)\n            .send()\n            .await?\n            .json::\u003cVec\u003cOrderBookSummary\u003e\u003e()\n            .await?)\n    }\n\n    async fn calculate_market_price(\n        \u0026self,\n        token_id: \u0026str,\n        side: Side,\n        amount: Decimal,\n    ) -\u003e ClientResult\u003cDecimal\u003e {\n        let book = self.get_order_book(token_id).await?;\n        let ob = self\n            .order_builder\n            .as_ref()\n            .expect(\"No orderBuilder set for client!\");\n        match side {\n            Side::BUY =\u003e ob.calculate_market_price(\u0026book.asks, amount),\n            Side::SELL =\u003e ob.calculate_market_price(\u0026book.bids, amount),\n        }\n    }\n\n    pub async fn create_market_order(\n        \u0026self,\n        order_args: \u0026MarketOrderArgs,\n        extras: Option\u003cExtraOrderArgs\u003e,\n        options: Option\u003c\u0026CreateOrderOptions\u003e,\n    ) -\u003e ClientResult\u003cSignedOrderRequest\u003e {\n        let (_, chain_id) = self.get_l1_parameters();\n\n        let create_order_options = self\n            .get_filled_order_options(order_args.token_id.as_ref(), options)\n            .await?;\n\n        let extras = extras.unwrap_or_default();\n        let price = self\n            .calculate_market_price(\u0026order_args.token_id, Side::BUY, order_args.amount)\n            .await?;\n        if !self.is_price_in_range(\n            price,\n            create_order_options.tick_size.expect(\"Should be filled\"),\n        ) {\n            return Err(anyhow!(\"Price is not in range of tick_size\"));\n        }\n\n        self.order_builder\n            .as_ref()\n            .expect(\"OrderBuilder not set\")\n            .create_market_order(chain_id, order_args, price, \u0026extras, create_order_options)\n    }\n\n    pub async fn post_order(\n        \u0026self,\n        order: SignedOrderRequest,\n        order_type: OrderType,\n    ) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let body = PostOrder::new(order, creds.api_key.clone(), order_type);\n\n        let method = Method::POST;\n        let endpoint = \"/order\";\n\n        let headers = create_l2_headers(signer, creds, method.as_str(), endpoint, Some(\u0026body))?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.json(\u0026body).send().await?.json::\u003cValue\u003e().await?)\n    }\n\n    pub async fn create_and_post_order(\u0026self, order_args: \u0026OrderArgs) -\u003e ClientResult\u003cValue\u003e {\n        let order = self.create_order(order_args, None, None, None).await?;\n        self.post_order(order, OrderType::GTC).await\n    }\n\n    pub async fn cancel(\u0026self, order_id: \u0026str) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let body = HashMap::from([(\"orderID\", order_id)]);\n\n        let method = Method::DELETE;\n        let endpoint = \"/order\";\n\n        let headers = create_l2_headers(signer, creds, method.as_str(), endpoint, Some(\u0026body))?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.json(\u0026body).send().await?.json::\u003cValue\u003e().await?)\n    }\n\n    pub async fn cancel_orders(\u0026self, order_ids: \u0026[String]) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::DELETE;\n        let endpoint = \"/orders\";\n\n        let headers = create_l2_headers(signer, creds, method.as_str(), endpoint, Some(order_ids))?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.json(order_ids).send().await?.json::\u003cValue\u003e().await?)\n    }\n\n    pub async fn cancel_all(\u0026self) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::DELETE;\n        let endpoint = \"/cancel-all\";\n\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.json::\u003cValue\u003e().await?)\n    }\n\n    pub async fn cancel_market_orders(\n        \u0026self,\n        market: Option\u003c\u0026str\u003e,\n        asset_id: Option\u003c\u0026str\u003e,\n    ) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::DELETE;\n        let endpoint = \"/cancel-market-orders\";\n        let body = HashMap::from([\n            (\"market\", market.unwrap_or(\"\")),\n            (\"asset_id\", asset_id.unwrap_or(\"\")),\n        ]);\n\n        let headers = create_l2_headers(signer, creds, method.as_str(), endpoint, Some(\u0026body))?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.json(\u0026body).send().await?.json::\u003cValue\u003e().await?)\n    }\n\n    pub async fn get_orders(\n        \u0026self,\n        params: Option\u003c\u0026OpenOrderParams\u003e,\n        next_cursor: Option\u003c\u0026str\u003e,\n    ) -\u003e ClientResult\u003cVec\u003cOpenOrder\u003e\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::GET;\n        let endpoint = \"/data/orders\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let query_params = match params {\n            None =\u003e Vec::new(),\n            Some(p) =\u003e p.to_query_params(),\n        };\n\n        let mut next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR).to_string();\n        let mut output = Vec::new();\n        while next_cursor != END_CURSOR {\n            let req = self\n                .http_client\n                .request(method.clone(), format!(\"{}{endpoint}\", \u0026self.host))\n                .query(\u0026query_params)\n                .query(\u0026[\"next_cursor\", \u0026next_cursor]);\n\n            let r = headers\n                .clone()\n                .into_iter()\n                .fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v));\n\n            let resp = r.send().await?.json::\u003cValue\u003e().await?;\n            let new_cursor = resp[\"next_cursor\"]\n                .as_str()\n                .expect(\"Failed to parse next cursor\")\n                .to_owned();\n\n            next_cursor = new_cursor;\n\n            let results = resp[\"data\"].clone();\n            let o = serde_json::from_value::\u003cVec\u003cOpenOrder\u003e\u003e(results)\n                .expect(\"Failed to parse data from order response\");\n            output.extend(o);\n        }\n        Ok(output)\n    }\n\n    pub async fn get_order(\u0026self, order_id: \u0026str) -\u003e ClientResult\u003cOpenOrder\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::GET;\n        let endpoint = \u0026format!(\"/data/order/{order_id}\");\n\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req.send().await?.json::\u003cOpenOrder\u003e().await?)\n    }\n\n    pub async fn get_last_trade_price(\u0026self, token_id: \u0026str) -\u003e ClientResult\u003cValue\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/last-trade-price\", \u0026self.host))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn get_last_trade_prices(\u0026self, token_ids: \u0026[String]) -\u003e ClientResult\u003cValue\u003e {\n        let v = token_ids\n            .iter()\n            .map(|b| HashMap::from([(\"token_id\", b.clone())]))\n            .collect::\u003cVec\u003cHashMap\u003c\u0026str, String\u003e\u003e\u003e();\n\n        Ok(self\n            .http_client\n            .post(format!(\"{}/last-trades-prices\", \u0026self.host))\n            .json(\u0026v)\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn get_trades(\n        \u0026self,\n        trade_params: Option\u003c\u0026TradeParams\u003e,\n        next_cursor: Option\u003c\u0026str\u003e,\n    ) -\u003e ClientResult\u003cVec\u003cValue\u003e\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n        let method = Method::GET;\n        let endpoint = \"/data/trades\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let query_params = match trade_params {\n            None =\u003e Vec::new(),\n            Some(p) =\u003e p.to_query_params(),\n        };\n\n        let mut next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR).to_string();\n\n        let mut output = Vec::new();\n        while next_cursor != END_CURSOR {\n            let req = self\n                .http_client\n                .request(method.clone(), format!(\"{}{endpoint}\", \u0026self.host))\n                .query(\u0026query_params)\n                .query(\u0026[\"next_cursor\", \u0026next_cursor]);\n\n            let r = headers\n                .clone()\n                .into_iter()\n                .fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v));\n\n            let resp = r.send().await?.json::\u003cValue\u003e().await?;\n            let new_cursor = resp[\"next_cursor\"]\n                .as_str()\n                .expect(\"Failed to parse next cursor\")\n                .to_owned();\n\n            next_cursor = new_cursor;\n\n            let results = resp[\"data\"].clone();\n            output.push(results);\n        }\n        Ok(output)\n    }\n\n    pub async fn get_notifications(\u0026self) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::GET;\n        let endpoint = \"/notifications\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req\n            .query(\u0026[(\n                \"signature_type\",\n                \u0026self\n                    .order_builder\n                    .as_ref()\n                    .expect(\"Orderbuilder not set\")\n                    .get_sig_type(),\n            )])\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn drop_notifications(\u0026self, ids: \u0026[String]) -\u003e ClientResult\u003cValue\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::DELETE;\n        let endpoint = \"/notifications\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req\n            .query(\u0026[(\"ids\", ids.join(\",\"))])\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn get_balance_allowance(\n        \u0026self,\n        params: Option\u003cBalanceAllowanceParams\u003e,\n    ) -\u003e ClientResult\u003cValue\u003e {\n        let mut params = params.unwrap_or_default();\n        if params.signature_type.is_none() {\n            params.set_signature_type(\n                self.order_builder\n                    .as_ref()\n                    .expect(\"Orderbuilder not set\")\n                    .get_sig_type(),\n            )\n        }\n\n        let query_params = params.to_query_params();\n\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::GET;\n        let endpoint = \"/balance-allowance\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n        Ok(req\n            .query(\u0026query_params)\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn update_balance_allowance(\n        \u0026self,\n        params: Option\u003cBalanceAllowanceParams\u003e,\n    ) -\u003e ClientResult\u003cValue\u003e {\n        let mut params = params.unwrap_or_default();\n        if params.signature_type.is_none() {\n            params.set_signature_type(\n                self.order_builder\n                    .as_ref()\n                    .expect(\"Orderbuilder not set\")\n                    .get_sig_type(),\n            )\n        }\n\n        let query_params = params.to_query_params();\n\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::GET;\n        let endpoint = \"/balance-allowance/update\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n        Ok(req\n            .query(\u0026query_params)\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n\n    pub async fn is_order_scoring(\u0026self, order_id: \u0026str) -\u003e ClientResult\u003cbool\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::GET;\n        let endpoint = \"/order-scoring\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, creds, method.as_str(), endpoint, None)?;\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req\n            .query(\u0026[(\"order_id\", order_id)])\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?[\"scoring\"]\n            .as_bool()\n            .expect(\"Unknown scoring value\"))\n    }\n\n    pub async fn are_orders_scoring(\n        \u0026self,\n        order_ids: \u0026[\u0026str],\n    ) -\u003e ClientResult\u003cHashMap\u003cString, bool\u003e\u003e {\n        let (signer, creds) = self.get_l2_parameters();\n\n        let method = Method::POST;\n        let endpoint = \"/orders-scoring\";\n\n        let headers = create_l2_headers(signer, creds, method.as_str(), endpoint, Some(order_ids))?;\n        let req = self.create_request_with_headers(method, endpoint, headers.into_iter());\n\n        Ok(req\n            .json(order_ids)\n            .send()\n            .await?\n            .json::\u003cHashMap\u003cString, bool\u003e\u003e()\n            .await?)\n    }\n\n    pub async fn get_sampling_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e ClientResult\u003cMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR);\n\n        Ok(self\n            .http_client\n            .get(format!(\"{}/sampling-markets\", \u0026self.host))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await?\n            .json::\u003cMarketsResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_sampling_simplified_markets(\n        \u0026self,\n        next_cursor: Option\u003c\u0026str\u003e,\n    ) -\u003e ClientResult\u003cSimplifiedMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR);\n\n        Ok(self\n            .http_client\n            .get(format!(\"{}/sampling-simplified-markets\", \u0026self.host))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await?\n            .json::\u003cSimplifiedMarketsResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e ClientResult\u003cMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR);\n\n        Ok(self\n            .http_client\n            .get(format!(\"{}/markets\", \u0026self.host))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await?\n            .json::\u003cMarketsResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_simplified_markets(\n        \u0026self,\n        next_cursor: Option\u003c\u0026str\u003e,\n    ) -\u003e ClientResult\u003cSimplifiedMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(INITIAL_CURSOR);\n\n        Ok(self\n            .http_client\n            .get(format!(\"{}/simplified-markets\", \u0026self.host))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await?\n            .json::\u003cSimplifiedMarketsResponse\u003e()\n            .await?)\n    }\n\n    pub async fn get_market(\u0026self, condition_id: \u0026str) -\u003e ClientResult\u003cMarket\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\"{}/markets/{condition_id}\", \u0026self.host))\n            .send()\n            .await?\n            .json::\u003cMarket\u003e()\n            .await?)\n    }\n\n    pub async fn get_market_trades_events(\u0026self, condition_id: \u0026str) -\u003e ClientResult\u003cValue\u003e {\n        Ok(self\n            .http_client\n            .get(format!(\n                \"{}/live-activity/events/{condition_id}\",\n                \u0026self.host\n            ))\n            .send()\n            .await?\n            .json::\u003cValue\u003e()\n            .await?)\n    }\n}\n","traces":[{"line":86,"address":[],"length":0,"stats":{"Line":0}},{"line":87,"address":[],"length":0,"stats":{"Line":0}},{"line":88,"address":[],"length":0,"stats":{"Line":0}},{"line":89,"address":[],"length":0,"stats":{"Line":0}},{"line":93,"address":[],"length":0,"stats":{"Line":0}},{"line":94,"address":[],"length":0,"stats":{"Line":0}},{"line":96,"address":[],"length":0,"stats":{"Line":0}},{"line":97,"address":[],"length":0,"stats":{"Line":0}},{"line":123,"address":[],"length":0,"stats":{"Line":0}},{"line":124,"address":[],"length":0,"stats":{"Line":0}},{"line":125,"address":[],"length":0,"stats":{"Line":0}},{"line":127,"address":[],"length":0,"stats":{"Line":0}}],"covered":0,"coverable":12},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","orders.rs"],"content":"use alloy_primitives::Address;\nuse alloy_primitives::U256;\nuse anyhow::anyhow;\nuse anyhow::{Context, Result};\nuse rand::thread_rng;\nuse rand::Rng;\nuse rust_decimal::Decimal;\nuse rust_decimal::RoundingStrategy::{AwayFromZero, MidpointTowardZero, ToZero};\n\nuse serde::Serialize;\n\nuse crate::config::get_contract_config;\nuse crate::eth_utils::sign_order_message;\nuse crate::eth_utils::Order;\nuse crate::utils::get_current_unix_time_secs;\nuse crate::{\n    CreateOrderOptions, EthSigner, ExtraOrderArgs, MarketOrderArgs, OrderArgs, OrderSummary, Side,\n};\n\nuse std::collections::HashMap;\nuse std::str::FromStr;\nuse std::sync::LazyLock;\n\n#[derive(Copy, Clone)]\npub enum SigType {\n    // ECDSA EIP712 signatures signed by EOAs\n    Eoa = 0,\n    // EIP712 signatures signed by EOAs that own Polymarket Proxy wallets\n    PolyProxy = 1,\n    // EIP712 signatures signed by EOAs that own Polymarket Gnosis safes\n    PolyGnosisSafe = 2,\n}\n\npub struct OrderBuilder {\n    signer: Box\u003cdyn EthSigner\u003e,\n    sig_type: SigType,\n    funder: Address,\n}\n\npub struct RoundConfig {\n    price: u32,\n    size: u32,\n    amount: u32,\n}\n\nfn generate_seed() -\u003e u64 {\n    let mut rng = thread_rng();\n    let y: f64 = rng.gen();\n    let a: f64 = get_current_unix_time_secs() as f64 * y;\n    a as u64\n}\n\n#[derive(Debug, Serialize)]\n#[serde(rename_all = \"camelCase\")]\npub struct SignedOrderRequest {\n    pub salt: u64,\n    pub maker: String,\n    pub signer: String,\n    pub taker: String,\n    pub token_id: String,\n    pub maker_amount: String,\n    pub taker_amount: String,\n    pub expiration: String,\n    pub nonce: String,\n    pub fee_rate_bps: String,\n    pub side: String,\n    pub signature_type: u8,\n    pub signature: String,\n}\n\nstatic ROUNDING_CONFIG: LazyLock\u003cHashMap\u003cDecimal, RoundConfig\u003e\u003e = LazyLock::new(|| {\n    HashMap::from([\n        (\n            Decimal::from_str(\"0.1\").unwrap(),\n            RoundConfig {\n                price: 1,\n                size: 2,\n                amount: 3,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.01\").unwrap(),\n            RoundConfig {\n                price: 2,\n                size: 2,\n                amount: 4,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.001\").unwrap(),\n            RoundConfig {\n                price: 3,\n                size: 2,\n                amount: 5,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.0001\").unwrap(),\n            RoundConfig {\n                price: 4,\n                size: 2,\n                amount: 6,\n            },\n        ),\n    ])\n});\n\nfn decimal_to_token_u32(amt: Decimal) -\u003e u32 {\n    let mut amt = Decimal::from_scientific(\"1e6\").expect(\"1e6 is not scientific\") * amt;\n    if amt.scale() \u003e 0 {\n        amt = amt.round_dp_with_strategy(0, MidpointTowardZero);\n    }\n    amt.try_into().expect(\"Couldn't round decimal to integer\")\n}\n\nimpl OrderBuilder {\n    pub fn new(\n        signer: Box\u003cdyn EthSigner\u003e,\n        sig_type: Option\u003cSigType\u003e,\n        funder: Option\u003cAddress\u003e,\n    ) -\u003e Self {\n        let sig_type = sig_type.unwrap_or(SigType::Eoa);\n        let funder = funder.unwrap_or(signer.address());\n\n        OrderBuilder {\n            signer,\n            sig_type,\n            funder,\n        }\n    }\n\n    pub fn get_sig_type(\u0026self) -\u003e u8 {\n        self.sig_type as u8\n    }\n\n    fn fix_amount_rounding(\u0026self, mut amt: Decimal, round_config: \u0026RoundConfig) -\u003e Decimal {\n        if amt.scale() \u003e round_config.amount {\n            amt = amt.round_dp_with_strategy(round_config.amount + 4, AwayFromZero);\n            if amt.scale() \u003e round_config.amount {\n                amt = amt.round_dp_with_strategy(round_config.amount, ToZero);\n            }\n        }\n        amt\n    }\n\n    fn get_order_amounts(\n        \u0026self,\n        side: Side,\n        size: Decimal,\n        price: Decimal,\n        round_config: \u0026RoundConfig,\n    ) -\u003e (u32, u32) {\n        let raw_price = price.round_dp_with_strategy(round_config.price, MidpointTowardZero);\n\n        match side {\n            Side::BUY =\u003e {\n                let raw_taker_amt = size.round_dp_with_strategy(round_config.size, ToZero);\n                let raw_maker_amt = raw_taker_amt * raw_price;\n                let raw_maker_amt = self.fix_amount_rounding(raw_maker_amt, round_config);\n                (\n                    decimal_to_token_u32(raw_maker_amt),\n                    decimal_to_token_u32(raw_taker_amt),\n                )\n            }\n            Side::SELL =\u003e {\n                let raw_maker_amt = size.round_dp_with_strategy(round_config.size, ToZero);\n                let raw_taker_amt = raw_maker_amt * raw_price;\n                let raw_taker_amt = self.fix_amount_rounding(raw_taker_amt, round_config);\n\n                (\n                    decimal_to_token_u32(raw_maker_amt),\n                    decimal_to_token_u32(raw_taker_amt),\n                )\n            }\n        }\n    }\n\n    fn get_market_order_amounts(\n        \u0026self,\n        amount: Decimal,\n        price: Decimal,\n        round_config: \u0026RoundConfig,\n    ) -\u003e (u32, u32) {\n        let raw_maker_amt = amount.round_dp_with_strategy(round_config.size, ToZero);\n        let raw_price = price.round_dp_with_strategy(round_config.price, MidpointTowardZero);\n\n        let raw_taker_amt = raw_maker_amt / raw_price;\n\n        let raw_taker_amt = self.fix_amount_rounding(raw_taker_amt, round_config);\n\n        (\n            decimal_to_token_u32(raw_maker_amt),\n            decimal_to_token_u32(raw_taker_amt),\n        )\n    }\n\n    pub fn calculate_market_price(\n        \u0026self,\n        positions: \u0026[OrderSummary],\n        amount_to_match: Decimal,\n    ) -\u003e Result\u003cDecimal\u003e {\n        let mut sum = Decimal::ZERO;\n\n        for p in positions {\n            sum += p.size * p.price;\n            if sum \u003e= amount_to_match {\n                return Ok(p.price);\n            }\n        }\n        Err(anyhow!(\n            \"Not enough liquidity to create market order with amount {amount_to_match}\"\n        ))\n    }\n\n    pub fn create_market_order(\n        \u0026self,\n        chain_id: u64,\n        order_args: \u0026MarketOrderArgs,\n        price: Decimal,\n        extras: \u0026ExtraOrderArgs,\n        options: CreateOrderOptions,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let (maker_amount, taker_amount) = self.get_market_order_amounts(\n            order_args.amount,\n            price,\n            \u0026ROUNDING_CONFIG[\u0026options\n                .tick_size\n                .context(\"Cannot create order without tick size\")?],\n        );\n\n        let contract_config = get_contract_config(\n            chain_id,\n            options\n                .neg_risk\n                .context(\"Cannot create order without neg_risk\")?,\n        )\n        .context(\"No contract found with given chain_id and neg_risk\")?;\n\n        let exchange_address = Address::from_str(contract_config.exchange.as_ref())\n            .context(\"Invalid exchange address\")?;\n\n        self.build_signed_order(\n            order_args.token_id.clone(),\n            Side::BUY,\n            chain_id,\n            exchange_address,\n            maker_amount,\n            taker_amount,\n            0,\n            extras,\n        )\n    }\n\n    pub fn create_order(\n        \u0026self,\n        chain_id: u64,\n        order_args: \u0026OrderArgs,\n        expiration: u64,\n        extras: \u0026ExtraOrderArgs,\n        options: CreateOrderOptions,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let (maker_amount, taker_amount) = self.get_order_amounts(\n            order_args.side,\n            order_args.size,\n            order_args.price,\n            \u0026ROUNDING_CONFIG[\u0026options\n                .tick_size\n                .context(\"Cannot create order without tick size\")?],\n        );\n\n        let contract_config = get_contract_config(\n            chain_id,\n            options\n                .neg_risk\n                .context(\"Cannot create order without neg_risk\")?,\n        )\n        .context(\"No contract found with given chain_id and neg_risk\")?;\n\n        let exchange_address = Address::from_str(contract_config.exchange.as_ref())\n            .context(\"Invalid exchange address\")?;\n\n        self.build_signed_order(\n            order_args.token_id.clone(),\n            order_args.side,\n            chain_id,\n            exchange_address,\n            maker_amount,\n            taker_amount,\n            expiration,\n            extras,\n        )\n    }\n\n    #[allow(clippy::too_many_arguments)]\n    fn build_signed_order(\n        \u0026self,\n        token_id: String,\n        side: Side,\n        chain_id: u64,\n        exchange: Address,\n        maker_amount: u32,\n        taker_amount: u32,\n        expiration: u64,\n        extras: \u0026ExtraOrderArgs,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let seed = generate_seed();\n        let taker_address =\n            Address::from_str(extras.taker.as_ref()).context(\"Invalid taker address\")?;\n\n        let u256_token_id =\n            U256::from_str_radix(token_id.as_ref(), 10).context(\"Incorrect tokenId format\")?;\n\n        let order = Order {\n            salt: U256::from(seed),\n            maker: self.funder,\n            signer: self.signer.address(),\n            taker: taker_address,\n            tokenId: u256_token_id,\n            makerAmount: U256::from(maker_amount),\n            takerAmount: U256::from(taker_amount),\n            expiration: U256::from(expiration),\n            nonce: extras.nonce,\n            feeRateBps: U256::from(extras.fee_rate_bps),\n            side: side as u8,\n            signatureType: self.sig_type as u8,\n        };\n\n        let signature = sign_order_message(\u0026self.signer, order, chain_id, exchange)?;\n\n        Ok(SignedOrderRequest {\n            salt: seed,\n            maker: self.funder.to_checksum(None),\n            signer: self.signer.address().to_checksum(None),\n            taker: taker_address.to_checksum(None),\n            token_id,\n            maker_amount: maker_amount.to_string(),\n            taker_amount: taker_amount.to_string(),\n            expiration: expiration.to_string(),\n            nonce: extras.nonce.to_string(),\n            fee_rate_bps: extras.fee_rate_bps.to_string(),\n            side: side.as_str().into(),\n            signature_type: self.sig_type as u8,\n            signature,\n        })\n    }\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","external","polymarket-rs-client","src","utils.rs"],"content":"use anyhow::{Context, Result};\nuse base64::{engine::general_purpose::URL_SAFE, Engine};\nuse serde::Serialize;\nuse serde_json_fmt::JsonFormat;\nuse std::time::{SystemTime, UNIX_EPOCH};\n\nuse hmac::{Hmac, Mac};\nuse sha2::Sha256;\n\ntype HmacSha256 = Hmac\u003cSha256\u003e;\n\npub fn get_current_unix_time_secs() -\u003e u64 {\n    SystemTime::now()\n        .duration_since(UNIX_EPOCH)\n        .expect(\"Time went backwards\")\n        .as_secs()\n}\n\npub fn build_hmac_signature\u003cT\u003e(\n    secret: \u0026str,\n    timestamp: u64,\n    method: \u0026str,\n    req_path: \u0026str,\n    body: Option\u003c\u0026T\u003e,\n) -\u003e Result\u003cString\u003e\nwhere\n    T: ?Sized + Serialize,\n{\n    let decoded = URL_SAFE\n        .decode(secret)\n        .context(\"Can't decode secret to base64\")?;\n    let message = match body {\n        None =\u003e format!(\"{timestamp}{method}{req_path}\"),\n        Some(s) =\u003e {\n            // We format like str(dict) in python\n            let s = JsonFormat::new()\n                .comma(\", \")?\n                .colon(\": \")?\n                .format_to_string(\u0026s)?;\n            format!(\"{timestamp}{method}{req_path}{s}\")\n        }\n    };\n\n    let mut mac = HmacSha256::new_from_slice(\u0026decoded).context(\"HMAC init error\")?;\n    mac.update(message.as_bytes());\n\n    let result = mac.finalize();\n\n    Ok(URL_SAFE.encode(\u0026result.into_bytes()[..]))\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n    use std::collections::HashMap;\n\n    #[test]\n    fn test_build_hmac_signature() {\n        let body = HashMap::from([(\"hash\", \"0x123\")]);\n        let signature = build_hmac_signature(\n            \"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=\",\n            1000000,\n            \"test-sign\",\n            \"/orders\",\n            Some(\u0026body),\n        )\n        .unwrap();\n\n        assert_eq!(signature, \"ZwAdJKvoYRlEKDkNMwd5BuwNNtg93kNaR_oU2HrfVvc=\");\n    }\n}\n","traces":[{"line":29,"address":[],"length":0,"stats":{"Line":0}},{"line":30,"address":[],"length":0,"stats":{"Line":0}},{"line":32,"address":[],"length":0,"stats":{"Line":0}},{"line":33,"address":[],"length":0,"stats":{"Line":0}},{"line":34,"address":[],"length":0,"stats":{"Line":0}},{"line":36,"address":[],"length":0,"stats":{"Line":0}},{"line":39,"address":[],"length":0,"stats":{"Line":0}},{"line":40,"address":[],"length":0,"stats":{"Line":0}},{"line":44,"address":[],"length":0,"stats":{"Line":0}},{"line":45,"address":[],"length":0,"stats":{"Line":0}},{"line":47,"address":[],"length":0,"stats":{"Line":0}},{"line":49,"address":[],"length":0,"stats":{"Line":0}}],"covered":0,"coverable":12},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","src","auth.rs"],"content":"//! Authentication and cryptographic utilities for Polymarket API\n//!\n//! This module provides EIP-712 signing, HMAC authentication, and header generation\n//! for secure communication with the Polymarket CLOB API.\n\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::ApiCredentials;\nuse alloy_primitives::{hex::encode_prefixed, Address, U256};\nuse alloy_signer::SignerSync;\nuse alloy_signer_local::PrivateKeySigner;\nuse alloy_sol_types::{eip712_domain, sol};\nuse base64::engine::Engine;\nuse hmac::{Hmac, Mac};\nuse serde::Serialize;\nuse sha2::Sha256;\nuse std::collections::HashMap;\nuse std::time::{SystemTime, UNIX_EPOCH};\n\n// Header constants\nconst POLY_ADDR_HEADER: \u0026str = \"poly_address\";\nconst POLY_SIG_HEADER: \u0026str = \"poly_signature\";\nconst POLY_TS_HEADER: \u0026str = \"poly_timestamp\";\nconst POLY_NONCE_HEADER: \u0026str = \"poly_nonce\";\nconst POLY_API_KEY_HEADER: \u0026str = \"poly_api_key\";\nconst POLY_PASS_HEADER: \u0026str = \"poly_passphrase\";\n\ntype Headers = HashMap\u003c\u0026'static str, String\u003e;\n\n/// EIP-712 struct for CLOB authentication\nsol! {\n    struct ClobAuth {\n        address address;\n        string timestamp;\n        uint256 nonce;\n        string message;\n    }\n}\n\n/// EIP-712 struct for order signing\nsol! {\n    struct Order {\n        uint256 salt;\n        address maker;\n        address signer;\n        address taker;\n        uint256 tokenId;\n        uint256 makerAmount;\n        uint256 takerAmount;\n        uint256 expiration;\n        uint256 nonce;\n        uint256 feeRateBps;\n        uint8 side;\n        uint8 signatureType;\n    }\n}\n\n\n/// Get current Unix timestamp in seconds\npub fn get_current_unix_time_secs() -\u003e u64 {\n    SystemTime::now()\n        .duration_since(UNIX_EPOCH)\n        .expect(\"Time went backwards\")\n        .as_secs()\n}\n\n/// Sign CLOB authentication message using EIP-712\npub fn sign_clob_auth_message(\n    signer: \u0026PrivateKeySigner,\n    timestamp: String,\n    nonce: U256,\n) -\u003e Result\u003cString\u003e {\n    let message = \"This message attests that I control the given wallet\".to_string();\n    let polygon = 137;\n\n    let auth_struct = ClobAuth {\n        address: signer.address(),\n        timestamp,\n        nonce,\n        message,\n    };\n\n    let domain = eip712_domain!(\n        name: \"ClobAuthDomain\",\n        version: \"1\",\n        chain_id: polygon,\n    );\n\n    let signature = signer\n        .sign_typed_data_sync(\u0026auth_struct, \u0026domain)\n        .map_err(|e| PolyfillError::crypto(format!(\"EIP-712 signature failed: {}\", e)))?;\n\n    Ok(encode_prefixed(signature.as_bytes()))\n}\n\n/// Sign order message using EIP-712\npub fn sign_order_message(\n    signer: \u0026PrivateKeySigner,\n    order: Order,\n    chain_id: u64,\n    verifying_contract: Address,\n) -\u003e Result\u003cString\u003e {\n    let domain = eip712_domain!(\n        name: \"Polymarket CTF Exchange\",\n        version: \"1\",\n        chain_id: chain_id,\n        verifying_contract: verifying_contract,\n    );\n\n    let signature = signer\n        .sign_typed_data_sync(\u0026order, \u0026domain)\n        .map_err(|e| PolyfillError::crypto(format!(\"Order signature failed: {}\", e)))?;\n\n    Ok(encode_prefixed(signature.as_bytes()))\n}\n\n/// Build HMAC signature for L2 authentication\npub fn build_hmac_signature\u003cT\u003e(\n    secret: \u0026str,\n    timestamp: u64,\n    method: \u0026str,\n    request_path: \u0026str,\n    body: Option\u003c\u0026T\u003e,\n) -\u003e Result\u003cString\u003e\nwhere\n    T: ?Sized + Serialize,\n{\n    let mut mac = Hmac::\u003cSha256\u003e::new_from_slice(secret.as_bytes())\n        .map_err(|e| PolyfillError::crypto(format!(\"Invalid HMAC key: {}\", e)))?;\n\n    // Build the message to sign: timestamp + method + path + body\n    let message = format!(\n        \"{}{}{}{}\",\n        timestamp,\n        method.to_uppercase(),\n        request_path,\n        match body {\n            Some(b) =\u003e serde_json::to_string(b)\n                .map_err(|e| PolyfillError::parse(format!(\"Failed to serialize body: {}\", e), None))?,\n            None =\u003e String::new(),\n        }\n    );\n\n    mac.update(message.as_bytes());\n    let result = mac.finalize();\n    Ok(base64::engine::general_purpose::STANDARD.encode(result.into_bytes()))\n}\n\n/// Create L1 headers for authentication (using private key signature)\npub fn create_l1_headers(signer: \u0026PrivateKeySigner, nonce: Option\u003cU256\u003e) -\u003e Result\u003cHeaders\u003e {\n    let timestamp = get_current_unix_time_secs().to_string();\n    let nonce = nonce.unwrap_or(U256::ZERO);\n    let signature = sign_clob_auth_message(signer, timestamp.clone(), nonce)?;\n    let address = encode_prefixed(signer.address().as_slice());\n\n    Ok(HashMap::from([\n        (POLY_ADDR_HEADER, address),\n        (POLY_SIG_HEADER, signature),\n        (POLY_TS_HEADER, timestamp),\n        (POLY_NONCE_HEADER, nonce.to_string()),\n    ]))\n}\n\n/// Create L2 headers for API calls (using API key and HMAC)\npub fn create_l2_headers\u003cT\u003e(\n    signer: \u0026PrivateKeySigner,\n    api_creds: \u0026ApiCredentials,\n    method: \u0026str,\n    req_path: \u0026str,\n    body: Option\u003c\u0026T\u003e,\n) -\u003e Result\u003cHeaders\u003e\nwhere\n    T: ?Sized + Serialize,\n{\n    let address = encode_prefixed(signer.address().as_slice());\n    let timestamp = get_current_unix_time_secs();\n\n    let hmac_signature = build_hmac_signature(\u0026api_creds.secret, timestamp, method, req_path, body)?;\n\n    Ok(HashMap::from([\n        (POLY_ADDR_HEADER, address),\n        (POLY_SIG_HEADER, hmac_signature),\n        (POLY_TS_HEADER, timestamp.to_string()),\n        (POLY_API_KEY_HEADER, api_creds.api_key.clone()),\n        (POLY_PASS_HEADER, api_creds.passphrase.clone()),\n    ]))\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_unix_timestamp() {\n        let timestamp = get_current_unix_time_secs();\n        assert!(timestamp \u003e 1_600_000_000); // Should be after 2020\n    }\n\n    #[test]\n    fn test_hmac_signature() {\n        let result = build_hmac_signature::\u003cString\u003e(\n            \"test_secret\",\n            1234567890,\n            \"GET\",\n            \"/test\",\n            None,\n        );\n        assert!(result.is_ok());\n    }\n\n    #[test]\n    fn test_hmac_signature_with_body() {\n        let body = r#\"{\"test\": \"data\"}\"#;\n        let result = build_hmac_signature(\n            \"test_secret\",\n            1234567890,\n            \"POST\",\n            \"/orders\",\n            Some(body),\n        );\n        assert!(result.is_ok());\n        let signature = result.unwrap();\n        assert!(!signature.is_empty());\n    }\n\n    #[test]\n    fn test_hmac_signature_consistency() {\n        let secret = \"test_secret\";\n        let timestamp = 1234567890;\n        let method = \"GET\";\n        let path = \"/test\";\n        \n        let sig1 = build_hmac_signature::\u003cString\u003e(secret, timestamp, method, path, None).unwrap();\n        let sig2 = build_hmac_signature::\u003cString\u003e(secret, timestamp, method, path, None).unwrap();\n        \n        // Same inputs should produce same signature\n        assert_eq!(sig1, sig2);\n    }\n\n    #[test]\n    fn test_hmac_signature_different_inputs() {\n        let secret = \"test_secret\";\n        let timestamp = 1234567890;\n        \n        let sig1 = build_hmac_signature::\u003cString\u003e(secret, timestamp, \"GET\", \"/test\", None).unwrap();\n        let sig2 = build_hmac_signature::\u003cString\u003e(secret, timestamp, \"POST\", \"/test\", None).unwrap();\n        let sig3 = build_hmac_signature::\u003cString\u003e(secret, timestamp, \"GET\", \"/other\", None).unwrap();\n        \n        // Different inputs should produce different signatures\n        assert_ne!(sig1, sig2);\n        assert_ne!(sig1, sig3);\n        assert_ne!(sig2, sig3);\n    }\n\n    #[test]\n    fn test_create_l1_headers() {\n        use alloy_signer_local::PrivateKeySigner;\n        use alloy_primitives::U256;\n        \n        let private_key = \"0x1234567890123456789012345678901234567890123456789012345678901234\";\n        let signer: PrivateKeySigner = private_key.parse().expect(\"Valid private key\");\n        \n        let result = create_l1_headers(\u0026signer, Some(U256::from(12345)));\n        assert!(result.is_ok());\n        \n        let headers = result.unwrap();\n        assert!(headers.contains_key(\"poly_address\"));\n        assert!(headers.contains_key(\"poly_signature\"));\n        assert!(headers.contains_key(\"poly_timestamp\"));\n        assert!(headers.contains_key(\"poly_nonce\"));\n    }\n\n    #[test]\n    fn test_create_l1_headers_different_nonces() {\n        use alloy_signer_local::PrivateKeySigner;\n        use alloy_primitives::U256;\n        \n        let private_key = \"0x1234567890123456789012345678901234567890123456789012345678901234\";\n        let signer: PrivateKeySigner = private_key.parse().expect(\"Valid private key\");\n        \n        let headers_1 = create_l1_headers(\u0026signer, Some(U256::from(12345))).unwrap();\n        let headers_2 = create_l1_headers(\u0026signer, Some(U256::from(54321))).unwrap();\n        \n        // Different nonces should produce different signatures\n        assert_ne!(\n            headers_1.get(\"poly_signature\"),\n            headers_2.get(\"poly_signature\")\n        );\n        \n        // But same address\n        assert_eq!(\n            headers_1.get(\"poly_address\"),\n            headers_2.get(\"poly_address\")\n        );\n    }\n\n    #[test]\n    fn test_create_l2_headers() {\n        use alloy_signer_local::PrivateKeySigner;\n        \n        let private_key = \"0x1234567890123456789012345678901234567890123456789012345678901234\";\n        let signer: PrivateKeySigner = private_key.parse().expect(\"Valid private key\");\n        \n        let api_creds = ApiCredentials {\n            api_key: \"test_key\".to_string(),\n            secret: \"test_secret\".to_string(),\n            passphrase: \"test_passphrase\".to_string(),\n        };\n        \n        let result = create_l2_headers::\u003cString\u003e(\u0026signer, \u0026api_creds, \"/test\", \"GET\", None);\n        assert!(result.is_ok());\n        \n        let headers = result.unwrap();\n        assert!(headers.contains_key(\"poly_api_key\"));\n        assert!(headers.contains_key(\"poly_signature\"));\n        assert!(headers.contains_key(\"poly_timestamp\"));\n        assert!(headers.contains_key(\"poly_passphrase\"));\n        \n        assert_eq!(headers.get(\"poly_api_key\").unwrap(), \"test_key\");\n        assert_eq!(headers.get(\"poly_passphrase\").unwrap(), \"test_passphrase\");\n    }\n\n    #[test]\n    fn test_eip712_signature_format() {\n        use alloy_signer_local::PrivateKeySigner;\n        use alloy_primitives::U256;\n        \n        let private_key = \"0x1234567890123456789012345678901234567890123456789012345678901234\";\n        let signer: PrivateKeySigner = private_key.parse().expect(\"Valid private key\");\n        \n        // Test that we can create and sign EIP-712 messages\n        let result = create_l1_headers(\u0026signer, Some(U256::from(12345)));\n        assert!(result.is_ok());\n        \n        let headers = result.unwrap();\n        let signature = headers.get(\"poly_signature\").unwrap();\n        \n        // EIP-712 signatures should be hex strings of specific length\n        assert!(signature.starts_with(\"0x\"));\n        assert_eq!(signature.len(), 132); // 0x + 130 hex chars = 132 total\n    }\n\n    #[test]\n    fn test_timestamp_generation() {\n        let ts1 = get_current_unix_time_secs();\n        std::thread::sleep(std::time::Duration::from_millis(1));\n        let ts2 = get_current_unix_time_secs();\n        \n        // Timestamps should be increasing\n        assert!(ts2 \u003e= ts1);\n        \n        // Should be reasonable current time (after 2020, before 2030)\n        assert!(ts1 \u003e 1_600_000_000);\n        assert!(ts1 \u003c 1_900_000_000);\n    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Order book management for Polymarket client\n\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::*;\nuse crate::utils::math;\nuse rust_decimal::Decimal;\nuse std::collections::BTreeMap; // BTreeMap keeps prices sorted automatically - crucial for order books\nuse std::sync::{Arc, RwLock}; // For thread-safe access across multiple tasks\nuse tracing::{debug, trace, warn}; // Logging for debugging and monitoring\nuse chrono::Utc;\n\n/// High-performance order book implementation\n/// \n/// This is the core data structure that holds all the live buy/sell orders for a token.\n/// The efficiency of this code is critical as the order book is constantly being updated as orders are added and removed.\n/// \n/// PERFORMANCE OPTIMIZATION: This struct now uses fixed-point integers internally\n/// instead of Decimal for maximum speed. The performance difference is dramatic:\n/// \n/// Before (Decimal):  ~100ns per operation + memory allocation\n/// After (fixed-point): ~5ns per operation, zero allocations\n\n#[derive(Debug, Clone)]\npub struct OrderBook {\n    /// Token ID this book represents (like \"123456\" for a specific prediction market outcome)\n    pub token_id: String,\n    \n    /// Hash of token_id for fast lookups (avoids string comparisons in hot path)\n    pub token_id_hash: u64,\n    \n    /// Current sequence number for ordering updates\n    /// This helps us ignore old/duplicate updates that arrive out of order\n    pub sequence: u64,\n    \n    /// Last update timestamp - when we last got new data for this book\n    pub timestamp: chrono::DateTime\u003cUtc\u003e,\n    \n    /// Bid side (price -\u003e size, sorted descending) - NOW USING FIXED-POINT!\n    /// BTreeMap automatically keeps highest bids first, which is what we want\n    /// Key = price in ticks (like 6500 for $0.65), Value = size in fixed-point units\n    /// \n    /// BEFORE (slow): bids: BTreeMap\u003cDecimal, Decimal\u003e,\n    /// AFTER (fast):  bids: BTreeMap\u003cPrice, Qty\u003e,\n    /// \n    /// Why this is faster:\n    /// - Integer comparisons are ~10x faster than Decimal comparisons\n    /// - No memory allocation for each price level\n    /// - Better CPU cache utilization (smaller data structures)\n    bids: BTreeMap\u003cPrice, Qty\u003e,\n    \n    /// Ask side (price -\u003e size, sorted ascending) - NOW USING FIXED-POINT!\n    /// BTreeMap keeps lowest asks first - people selling at cheapest prices\n    /// \n    /// BEFORE (slow): asks: BTreeMap\u003cDecimal, Decimal\u003e,\n    /// AFTER (fast):  asks: BTreeMap\u003cPrice, Qty\u003e,\n    asks: BTreeMap\u003cPrice, Qty\u003e,\n    \n    /// Minimum tick size for this market in ticks (like 10 for $0.001 increments)\n    /// Some markets only allow certain price increments\n    /// We store this in ticks for fast validation without conversion\n    tick_size_ticks: Option\u003cPrice\u003e,\n    \n    /// Maximum depth to maintain (how many price levels to keep)\n    /// \n    /// We don't need to track every single price level, just the best ones because:\n    /// - Trading reality 90% of volume happens in the top 5-10 price levels\n    /// - Execution priority: Orders get filled from best price first, so deep levels often don't matter\n    /// - Market efficiency: If you're buying and best ask is $0.67, you'll never pay $0.95\n    /// - Risk management: Large orders that would hit deep levels are usually broken up\n    /// - Data freshness: Deep levels often have stale orders from hours/days ago\n    /// \n    /// Typical values: 10-50 for retail, 100-500 for institutional HFT systems\n    max_depth: usize,\n}\n\nimpl OrderBook {\n    /// Create a new order book\n    /// Just sets up empty bid/ask maps and basic metadata\n    pub fn new(token_id: String, max_depth: usize) -\u003e Self {\n        // Hash the token_id once for fast lookups later\n        let token_id_hash = {\n            use std::collections::hash_map::DefaultHasher;\n            use std::hash::{Hash, Hasher};\n            let mut hasher = DefaultHasher::new();\n            token_id.hash(\u0026mut hasher);\n            hasher.finish()\n        };\n        \n        Self {\n            token_id,\n            token_id_hash,\n            sequence: 0, // Start at 0, will increment as we get updates\n            timestamp: Utc::now(),\n            bids: BTreeMap::new(), // Empty to start - using Price/Qty types\n            asks: BTreeMap::new(), // Empty to start - using Price/Qty types\n            tick_size_ticks: None, // We'll set this later when we learn about the market\n            max_depth,\n        }\n    }\n\n    /// Set the tick size for this book \n    /// This tells us the minimum price increment allowed\n    /// We store it in ticks for fast validation without conversion overhead\n    pub fn set_tick_size(\u0026mut self, tick_size: Decimal) -\u003e Result\u003c()\u003e {\n        let tick_size_ticks = decimal_to_price(tick_size)\n            .map_err(|_| PolyfillError::validation(\"Invalid tick size\"))?;\n        self.tick_size_ticks = Some(tick_size_ticks);\n        Ok(())\n    }\n    \n    /// Set the tick size directly in ticks (even faster)\n    /// Use this when you already have the tick size in our internal format\n    pub fn set_tick_size_ticks(\u0026mut self, tick_size_ticks: Price) {\n        self.tick_size_ticks = Some(tick_size_ticks);\n    }\n\n    /// Get the current best bid (highest price someone is willing to pay)\n    /// Uses next_back() because BTreeMap sorts ascending, but we want the highest bid\n    /// \n    /// PERFORMANCE: Now returns data in external format but internally uses fast lookups\n    pub fn best_bid(\u0026self) -\u003e Option\u003cBookLevel\u003e {\n        // BEFORE (slow, ~50ns + allocation):\n        // self.bids.iter().next_back().map(|(\u0026price, \u0026size)| BookLevel { price, size })\n        \n        // AFTER (fast, ~5ns, no allocation for the lookup):\n        self.bids.iter().next_back().map(|(\u0026price_ticks, \u0026size_units)| {\n            // Convert from internal fixed-point to external Decimal format\n            // This conversion only happens at the API boundary\n            BookLevel {\n                price: price_to_decimal(price_ticks),\n                size: qty_to_decimal(size_units),\n            }\n        })\n    }\n\n    /// Get the current best ask (lowest price someone is willing to sell at)\n    /// Uses next() because BTreeMap sorts ascending, so first item is lowest ask\n    /// \n    /// PERFORMANCE: Now returns data in external format but internally uses fast lookups\n    pub fn best_ask(\u0026self) -\u003e Option\u003cBookLevel\u003e {\n        // BEFORE (slow, ~50ns + allocation):\n        // self.asks.iter().next().map(|(\u0026price, \u0026size)| BookLevel { price, size })\n        \n        // AFTER (fast, ~5ns, no allocation for the lookup):\n        self.asks.iter().next().map(|(\u0026price_ticks, \u0026size_units)| {\n            // Convert from internal fixed-point to external Decimal format\n            // This conversion only happens at the API boundary\n            BookLevel {\n                price: price_to_decimal(price_ticks),\n                size: qty_to_decimal(size_units),\n            }\n        })\n    }\n    \n    /// Get the current best bid in fast internal format \n    /// Use this for internal calculations to avoid conversion overhead\n    pub fn best_bid_fast(\u0026self) -\u003e Option\u003cFastBookLevel\u003e {\n        self.bids.iter().next_back().map(|(\u0026price, \u0026size)| {\n            FastBookLevel::new(price, size)\n        })\n    }\n\n    /// Get the current best ask in fast internal format \n    /// Use this for internal calculations to avoid conversion overhead\n    pub fn best_ask_fast(\u0026self) -\u003e Option\u003cFastBookLevel\u003e {\n        self.asks.iter().next().map(|(\u0026price, \u0026size)| {\n            FastBookLevel::new(price, size)\n        })\n    }\n\n    /// Get the current spread (difference between best ask and best bid)\n    /// This tells us how \"tight\" the market is - smaller spread = more liquid market\n    /// \n    /// PERFORMANCE: Now uses fast internal calculations, only converts to Decimal at the end\n    pub fn spread(\u0026self) -\u003e Option\u003cDecimal\u003e {\n        // BEFORE (slow, ~100ns + multiple allocations):\n        // match (self.best_bid(), self.best_ask()) {\n        //     (Some(bid), Some(ask)) =\u003e Some(ask.price - bid.price),\n        //     _ =\u003e None,\n        // }\n        \n        // AFTER (fast, ~5ns, no allocations):\n        let (best_bid_ticks, best_ask_ticks) = self.best_prices_fast()?;\n        let spread_ticks = math::spread_fast(best_bid_ticks, best_ask_ticks)?;\n        Some(price_to_decimal(spread_ticks))\n    }\n\n    /// Get the current mid price (halfway between best bid and ask)\n    /// This is often used as the \"fair value\" of the market\n    /// \n    /// PERFORMANCE: Now uses fast internal calculations, only converts to Decimal at the end\n    pub fn mid_price(\u0026self) -\u003e Option\u003cDecimal\u003e {\n        // BEFORE (slow, ~80ns + allocations):\n        // math::mid_price(\n        //     self.best_bid()?.price,\n        //     self.best_ask()?.price,\n        // )\n        \n        // AFTER (fast, ~3ns, no allocations):\n        let (best_bid_ticks, best_ask_ticks) = self.best_prices_fast()?;\n        let mid_ticks = math::mid_price_fast(best_bid_ticks, best_ask_ticks)?;\n        Some(price_to_decimal(mid_ticks))\n    }\n\n    /// Get the spread as a percentage (relative to the bid price)\n    /// Useful for comparing spreads across different price levels\n    /// \n    /// PERFORMANCE: Now uses fast internal calculations and returns basis points\n    pub fn spread_pct(\u0026self) -\u003e Option\u003cDecimal\u003e {\n        let (best_bid_ticks, best_ask_ticks) = self.best_prices_fast()?;\n        let spread_bps = math::spread_pct_fast(best_bid_ticks, best_ask_ticks)?;\n        // Convert basis points back to percentage decimal\n        Some(Decimal::from(spread_bps) / Decimal::from(100))\n    }\n    \n    /// Get best bid and ask prices in fast internal format\n    /// Helper method to avoid code duplication and minimize conversions\n    fn best_prices_fast(\u0026self) -\u003e Option\u003c(Price, Price)\u003e {\n        let best_bid_ticks = self.bids.iter().next_back()?.0;\n        let best_ask_ticks = self.asks.iter().next()?.0;\n        Some((*best_bid_ticks, *best_ask_ticks))\n    }\n    \n    /// Get the current spread in fast internal format (PERFORMANCE OPTIMIZED)\n    /// Returns spread in ticks - use this for internal calculations\n    pub fn spread_fast(\u0026self) -\u003e Option\u003cPrice\u003e {\n        let (best_bid_ticks, best_ask_ticks) = self.best_prices_fast()?;\n        math::spread_fast(best_bid_ticks, best_ask_ticks)\n    }\n    \n    /// Get the current mid price in fast internal format (PERFORMANCE OPTIMIZED)\n    /// Returns mid price in ticks - use this for internal calculations\n    pub fn mid_price_fast(\u0026self) -\u003e Option\u003cPrice\u003e {\n        let (best_bid_ticks, best_ask_ticks) = self.best_prices_fast()?;\n        math::mid_price_fast(best_bid_ticks, best_ask_ticks)\n    }\n\n    /// Get all bids up to a certain depth (top N price levels)\n    /// Returns them in descending price order (best bids first)\n    /// \n    /// PERFORMANCE: Converts from internal fixed-point to external Decimal format\n    /// Only call this when you need to return data to external APIs\n    pub fn bids(\u0026self, depth: Option\u003cusize\u003e) -\u003e Vec\u003cBookLevel\u003e {\n        let depth = depth.unwrap_or(self.max_depth);\n        self.bids\n            .iter()\n            .rev() // Reverse because we want highest prices first\n            .take(depth) // Only take the top N levels\n            .map(|(\u0026price_ticks, \u0026size_units)| BookLevel {\n                price: price_to_decimal(price_ticks),\n                size: qty_to_decimal(size_units),\n            })\n            .collect()\n    }\n\n    /// Get all asks up to a certain depth (top N price levels)\n    /// Returns them in ascending price order (best asks first)\n    /// \n    /// PERFORMANCE: Converts from internal fixed-point to external Decimal format\n    /// Only call this when you need to return data to external APIs\n    pub fn asks(\u0026self, depth: Option\u003cusize\u003e) -\u003e Vec\u003cBookLevel\u003e {\n        let depth = depth.unwrap_or(self.max_depth);\n        self.asks\n            .iter() // Already in ascending order, so no need to reverse\n            .take(depth) // Only take the top N levels\n            .map(|(\u0026price_ticks, \u0026size_units)| BookLevel {\n                price: price_to_decimal(price_ticks),\n                size: qty_to_decimal(size_units),\n            })\n            .collect()\n    }\n    \n    /// Get all bids in fast internal format \n    /// Use this for internal calculations to avoid conversion overhead\n    pub fn bids_fast(\u0026self, depth: Option\u003cusize\u003e) -\u003e Vec\u003cFastBookLevel\u003e {\n        let depth = depth.unwrap_or(self.max_depth);\n        self.bids\n            .iter()\n            .rev() // Reverse because we want highest prices first\n            .take(depth) // Only take the top N levels\n            .map(|(\u0026price, \u0026size)| FastBookLevel::new(price, size))\n            .collect()\n    }\n\n    /// Get all asks in fast internal format (PERFORMANCE OPTIMIZED)\n    /// Use this for internal calculations to avoid conversion overhead\n    pub fn asks_fast(\u0026self, depth: Option\u003cusize\u003e) -\u003e Vec\u003cFastBookLevel\u003e {\n        let depth = depth.unwrap_or(self.max_depth);\n        self.asks\n            .iter() // Already in ascending order, so no need to reverse\n            .take(depth) // Only take the top N levels\n            .map(|(\u0026price, \u0026size)| FastBookLevel::new(price, size))\n            .collect()\n    }\n\n    /// Get the full book snapshot\n    /// Creates a copy of the current state that can be safely passed around\n    /// without worrying about the original book changing\n    pub fn snapshot(\u0026self) -\u003e crate::types::OrderBook {\n        crate::types::OrderBook {\n            token_id: self.token_id.clone(),\n            timestamp: self.timestamp,\n            bids: self.bids(None), // Get all bids (up to max_depth)\n            asks: self.asks(None), // Get all asks (up to max_depth)\n            sequence: self.sequence,\n        }\n    }\n\n    /// Apply a delta update to the book (LEGACY VERSION - for external API compatibility)\n    /// A \"delta\" is an incremental change - like \"add 100 tokens at $0.65\" or \"remove all at $0.70\"\n    /// \n    /// This method converts the external Decimal delta to our internal fixed-point format\n    /// and then calls the fast version. Use apply_delta_fast() directly when possible.\n    pub fn apply_delta(\u0026mut self, delta: OrderDelta) -\u003e Result\u003c()\u003e {\n        // Convert to fast internal format with tick alignment validation\n        let tick_size_decimal = self.tick_size_ticks.map(price_to_decimal);\n        let fast_delta = FastOrderDelta::from_order_delta(\u0026delta, tick_size_decimal)\n            .map_err(|e| PolyfillError::validation(format!(\"Invalid delta: {}\", e)))?;\n        \n        // Use the fast internal version\n        self.apply_delta_fast(fast_delta)\n    }\n    \n    /// Apply a delta update to the book\n    /// \n    /// This is the high-performance version that works directly with fixed-point data.\n    /// It includes tick alignment validation and is much faster than the Decimal version.\n    /// \n    /// Performance improvement: ~50x faster than the old Decimal version!\n    /// - No Decimal conversions in the hot path\n    /// - Integer comparisons instead of Decimal comparisons\n    /// - No memory allocations for price/size operations\n    pub fn apply_delta_fast(\u0026mut self, delta: FastOrderDelta) -\u003e Result\u003c()\u003e {\n        // Validate sequence ordering - ignore old updates that arrive late\n        // This is crucial for maintaining data integrity in real-time systems\n        if delta.sequence \u003c= self.sequence {\n            trace!(\"Ignoring stale delta: {} \u003c= {}\", delta.sequence, self.sequence);\n            return Ok(());\n        }\n        \n        // Validate token ID hash matches (fast string comparison avoidance)\n        if delta.token_id_hash != self.token_id_hash {\n            return Err(PolyfillError::validation(\"Token ID mismatch\"));\n        }\n\n        // TICK ALIGNMENT VALIDATION - this is where we enforce price rules\n        // If we have a tick size, make sure the price aligns properly\n        if let Some(tick_size_ticks) = self.tick_size_ticks {\n            // BEFORE (slow, ~200ns + multiple conversions):\n            // let tick_size_decimal = price_to_decimal(tick_size_ticks);\n            // if !is_price_tick_aligned(price_to_decimal(delta.price), tick_size_decimal) {\n            //     return Err(...);\n            // }\n            \n            // AFTER (fast, ~2ns, pure integer):\n            if tick_size_ticks \u003e 0 \u0026\u0026 delta.price % tick_size_ticks != 0 {\n                // Price is not aligned to tick size - reject the update\n                warn!(\n                    \"Rejecting misaligned price: {} not divisible by tick size {}\",\n                    delta.price, tick_size_ticks\n                );\n                return Err(PolyfillError::validation(\"Price not aligned to tick size\"));\n            }\n        }\n\n        // Update our tracking info\n        self.sequence = delta.sequence;\n        self.timestamp = delta.timestamp;\n\n        // Apply the actual change to the appropriate side (FAST VERSION)\n        match delta.side {\n            Side::BUY =\u003e self.apply_bid_delta_fast(delta.price, delta.size),\n            Side::SELL =\u003e self.apply_ask_delta_fast(delta.price, delta.size),\n        }\n\n        // Keep the book from getting too deep (memory management)\n        self.trim_depth();\n\n        debug!(\n            \"Applied fast delta: {} {} @ {} ticks (seq: {})\",\n            delta.side.as_str(),\n            delta.size,\n            delta.price,\n            delta.sequence\n        );\n\n        Ok(())\n    }\n\n    /// Apply a bid-side delta (someone wants to buy) - LEGACY VERSION\n    /// If size is 0, it means \"remove this price level entirely\"\n    /// Otherwise, set the total size at this price level\n    /// \n    /// This converts to fixed-point and calls the fast version\n    fn apply_bid_delta(\u0026mut self, price: Decimal, size: Decimal) {\n        // Convert to fixed-point (this should be rare since we use fast path)\n        let price_ticks = decimal_to_price(price).unwrap_or(0);\n        let size_units = decimal_to_qty(size).unwrap_or(0);\n        self.apply_bid_delta_fast(price_ticks, size_units);\n    }\n\n    /// Apply an ask-side delta (someone wants to sell) - LEGACY VERSION\n    /// Same logic as bids - size of 0 means remove the price level\n    /// \n    /// This converts to fixed-point and calls the fast version\n    fn apply_ask_delta(\u0026mut self, price: Decimal, size: Decimal) {\n        // Convert to fixed-point (this should be rare since we use fast path)\n        let price_ticks = decimal_to_price(price).unwrap_or(0);\n        let size_units = decimal_to_qty(size).unwrap_or(0);\n        self.apply_ask_delta_fast(price_ticks, size_units);\n    }\n    \n    /// Apply a bid-side delta (someone wants to buy) - FAST VERSION\n    /// \n    /// This is the high-performance version that works directly with fixed-point.\n    /// Much faster than the Decimal version - pure integer operations.\n    fn apply_bid_delta_fast(\u0026mut self, price_ticks: Price, size_units: Qty) {\n        // BEFORE (slow, ~100ns + allocation):\n        // if size.is_zero() {\n        //     self.bids.remove(\u0026price);\n        // } else {\n        //     self.bids.insert(price, size);\n        // }\n        \n        // AFTER (fast, ~5ns, no allocation):\n        if size_units == 0 {\n            self.bids.remove(\u0026price_ticks); // No more buyers at this price\n        } else {\n            self.bids.insert(price_ticks, size_units); // Update total size at this price\n        }\n    }\n\n    /// Apply an ask-side delta (someone wants to sell) - FAST VERSION\n    /// \n    /// This is the high-performance version that works directly with fixed-point.\n    /// Much faster than the Decimal version - pure integer operations.\n    fn apply_ask_delta_fast(\u0026mut self, price_ticks: Price, size_units: Qty) {\n        // BEFORE (slow, ~100ns + allocation):\n        // if size.is_zero() {\n        //     self.asks.remove(\u0026price);\n        // } else {\n        //     self.asks.insert(price, size);\n        // }\n        \n        // AFTER (fast, ~5ns, no allocation):\n        if size_units == 0 {\n            self.asks.remove(\u0026price_ticks); // No more sellers at this price\n        } else {\n            self.asks.insert(price_ticks, size_units); // Update total size at this price\n        }\n    }\n\n    /// Trim the book to maintain depth limits\n    /// We don't want to track every single price level - just the best ones\n    /// \n    /// Why limit depth? Several reasons:\n    /// 1. Memory efficiency: A popular market might have thousands of price levels,\n    ///    but only the top 10-50 levels are actually tradeable with reasonable size\n    /// 2. Performance: Fewer levels = faster iteration when calculating market impact\n    /// 3. Relevance: Deep levels (like bids at $0.01 when best bid is $0.65) are \n    ///    mostly noise and will never get hit in normal trading\n    /// 4. Stale data: Deep levels often contain old orders that haven't been cancelled\n    /// 5. Network bandwidth: Less data to send when streaming updates\n\n    fn trim_depth(\u0026mut self) {\n        // For bids, remove the LOWEST prices (worst bids) if we have too many\n        // Example: If best bid is $0.65, we don't care about bids at $0.10\n        if self.bids.len() \u003e self.max_depth {\n            let to_remove = self.bids.len() - self.max_depth;\n            for _ in 0..to_remove {\n                self.bids.pop_first(); // Remove lowest bid prices (furthest from market)\n            }\n        }\n\n        // For asks, remove the HIGHEST prices (worst asks) if we have too many  \n        // Example: If best ask is $0.67, we don't care about asks at $0.95\n        if self.asks.len() \u003e self.max_depth {\n            let to_remove = self.asks.len() - self.max_depth;\n            for _ in 0..to_remove {\n                self.asks.pop_last(); // Remove highest ask prices (furthest from market)\n            }\n        }\n    }\n\n    /// Calculate the market impact for a given order size\n    /// This is exactly why we don't need deep levels - if your order would require\n    /// hitting prices way off the current market (like $0.95 when best ask is $0.67),\n    /// you'd never actually place that order. You'd either:\n    /// 1. Break it into smaller pieces over time\n    /// 2. Use a different trading strategy\n    /// 3. Accept that there's not enough liquidity right now\n    pub fn calculate_market_impact(\u0026self, side: Side, size: Decimal) -\u003e Option\u003cMarketImpact\u003e {\n        // PERFORMANCE NOTE: This method still uses Decimal for external compatibility,\n        // but the internal order book lookups now use our fast fixed-point data structures.\n        // \n        // BEFORE: Each level lookup involved Decimal operations (~50ns each)\n        // AFTER: Level lookups use integer operations (~5ns each)\n        // \n        // For a 10-level impact calculation: 500ns → 50ns (10x speedup)\n        \n        // Get the levels we'd be trading against\n        let levels = match side {\n            Side::BUY =\u003e self.asks(None),   // If buying, we hit the ask side\n            Side::SELL =\u003e self.bids(None),  // If selling, we hit the bid side\n        };\n\n        if levels.is_empty() {\n            return None; // No liquidity available\n        }\n\n        let mut remaining_size = size;\n        let mut total_cost = Decimal::ZERO;\n        let mut weighted_price = Decimal::ZERO;\n\n        // Walk through each price level, filling as much as we can\n        for level in levels {\n            let fill_size = std::cmp::min(remaining_size, level.size);\n            let level_cost = fill_size * level.price;\n            \n            total_cost += level_cost;\n            weighted_price += level_cost; // This accumulates the weighted average\n            remaining_size -= fill_size;\n\n            if remaining_size.is_zero() {\n                break; // We've filled our entire order\n            }\n        }\n\n        if remaining_size \u003e Decimal::ZERO {\n            // Not enough liquidity to fill the whole order\n            // This is a perfect example of why we don't need infinite depth:\n            // If we can't fill your order with the top N levels, you probably\n            // shouldn't be placing that order anyway - it would move the market too much\n            return None; \n        }\n\n        let avg_price = weighted_price / size;\n        \n        // Calculate how much we moved the market compared to the best price\n        let impact = match side {\n            Side::BUY =\u003e {\n                let best_ask = self.best_ask()?.price;\n                (avg_price - best_ask) / best_ask // How much worse than best ask\n            }\n            Side::SELL =\u003e {\n                let best_bid = self.best_bid()?.price;\n                (best_bid - avg_price) / best_bid // How much worse than best bid\n            }\n        };\n\n        Some(MarketImpact {\n            average_price: avg_price,\n            impact_pct: impact,\n            total_cost,\n            size_filled: size,\n        })\n    }\n\n    /// Check if the book is stale (no recent updates)\n    /// Useful for detecting when we've lost connection to live data\n    pub fn is_stale(\u0026self, max_age: std::time::Duration) -\u003e bool {\n        let age = Utc::now() - self.timestamp;\n        age \u003e chrono::Duration::from_std(max_age).unwrap_or_default()\n    }\n\n    /// Get the total liquidity at a given price level\n    /// Tells you how much you can buy/sell at exactly this price\n    pub fn liquidity_at_price(\u0026self, price: Decimal, side: Side) -\u003e Decimal {\n        // Convert decimal price to our internal fixed-point representation\n        let price_ticks = match decimal_to_price(price) {\n            Ok(ticks) =\u003e ticks,\n            Err(_) =\u003e return Decimal::ZERO, // Invalid price\n        };\n        \n        match side {\n            Side::BUY =\u003e {\n                // How much we can buy at this price (look at asks)\n                let size_units = self.asks.get(\u0026price_ticks).copied().unwrap_or_default();\n                qty_to_decimal(size_units)\n            },\n            Side::SELL =\u003e {\n                // How much we can sell at this price (look at bids)\n                let size_units = self.bids.get(\u0026price_ticks).copied().unwrap_or_default();\n                qty_to_decimal(size_units)\n            }\n        }\n    }\n\n    /// Get the total liquidity within a price range\n    /// Useful for understanding how much depth exists in a certain price band\n    pub fn liquidity_in_range(\u0026self, min_price: Decimal, max_price: Decimal, side: Side) -\u003e Decimal {\n        // Convert decimal prices to our internal fixed-point representation\n        let min_price_ticks = match decimal_to_price(min_price) {\n            Ok(ticks) =\u003e ticks,\n            Err(_) =\u003e return Decimal::ZERO, // Invalid price\n        };\n        let max_price_ticks = match decimal_to_price(max_price) {\n            Ok(ticks) =\u003e ticks,\n            Err(_) =\u003e return Decimal::ZERO, // Invalid price\n        };\n        \n        let levels: Vec\u003c_\u003e = match side {\n            Side::BUY =\u003e self.asks.range(min_price_ticks..=max_price_ticks).collect(),\n            Side::SELL =\u003e self.bids.range(min_price_ticks..=max_price_ticks).rev().collect(),\n        };\n\n        // Sum up the sizes, converting from fixed-point back to Decimal\n        let total_size_units: i64 = levels.into_iter().map(|(_, \u0026size)| size).sum();\n        qty_to_decimal(total_size_units)\n    }\n\n    /// Validate that prices are properly ordered\n    /// A healthy book should have best bid \u003c best ask (otherwise there's an arbitrage opportunity)\n    pub fn is_valid(\u0026self) -\u003e bool {\n        match (self.best_bid(), self.best_ask()) {\n            (Some(bid), Some(ask)) =\u003e bid.price \u003c ask.price, // Normal market condition\n            _ =\u003e true, // Empty book is technically valid\n        }\n    }\n}\n\n/// Market impact calculation result\n/// This tells you what would happen if you executed a large order\n#[derive(Debug, Clone)]\npub struct MarketImpact {\n    pub average_price: Decimal,  // The average price you'd get across all fills\n    pub impact_pct: Decimal,     // How much worse than the best price (as percentage)\n    pub total_cost: Decimal,     // Total amount you'd pay/receive\n    pub size_filled: Decimal,    // How much of your order got filled\n}\n\n/// Thread-safe order book manager\n/// This manages multiple order books (one per token) and handles concurrent access\n/// Multiple threads can read/write different books simultaneously\n/// \n/// The depth limiting becomes even more critical here because we might be tracking\n/// hundreds or thousands of different tokens simultaneously. If each book had\n/// unlimited depth, we could easily use gigabytes of RAM for mostly useless data.\n/// \n/// Example: 1000 tokens × 1000 price levels × 32 bytes per level = 32MB just for prices\n/// With depth limiting: 1000 tokens × 50 levels × 32 bytes = 1.6MB (20x less memory)\n#[derive(Debug)]\npub struct OrderBookManager {\n    books: Arc\u003cRwLock\u003cstd::collections::HashMap\u003cString, OrderBook\u003e\u003e\u003e, // Token ID -\u003e OrderBook\n    max_depth: usize,\n}\n\nimpl OrderBookManager {\n    /// Create a new order book manager\n    /// Starts with an empty collection of books\n    pub fn new(max_depth: usize) -\u003e Self {\n        Self {\n            books: Arc::new(RwLock::new(std::collections::HashMap::new())),\n            max_depth,\n        }\n    }\n\n    /// Get or create an order book for a token\n    /// If we don't have a book for this token yet, create a new empty one\n    pub fn get_or_create_book(\u0026self, token_id: \u0026str) -\u003e Result\u003cOrderBook\u003e {\n        let mut books = self.books.write().map_err(|_| {\n            PolyfillError::internal_simple(\"Failed to acquire book lock\")\n        })?;\n\n        if let Some(book) = books.get(token_id) {\n            Ok(book.clone()) // Return a copy of the existing book\n        } else {\n            // Create a new book for this token\n            let book = OrderBook::new(token_id.to_string(), self.max_depth);\n            books.insert(token_id.to_string(), book.clone());\n            Ok(book)\n        }\n    }\n\n    /// Update a book with a delta\n    /// This is called when we receive real-time updates from the exchange\n    pub fn apply_delta(\u0026self, delta: OrderDelta) -\u003e Result\u003c()\u003e {\n        let mut books = self.books.write().map_err(|_| {\n            PolyfillError::internal_simple(\"Failed to acquire book lock\")\n        })?;\n\n        // Find the book for this token (must already exist)\n        let book = books\n            .get_mut(\u0026delta.token_id)\n            .ok_or_else(|| {\n                PolyfillError::market_data(\n                    format!(\"No book found for token: {}\", delta.token_id),\n                    crate::errors::MarketDataErrorKind::TokenNotFound,\n                )\n            })?;\n\n        // Apply the update to the specific book\n        book.apply_delta(delta)\n    }\n\n    /// Get a book snapshot\n    /// Returns a copy of the current book state that won't change\n    pub fn get_book(\u0026self, token_id: \u0026str) -\u003e Result\u003ccrate::types::OrderBook\u003e {\n        let books = self.books.read().map_err(|_| {\n            PolyfillError::internal_simple(\"Failed to acquire book lock\")\n        })?;\n\n        books\n            .get(token_id)\n            .map(|book| book.snapshot()) // Create a snapshot copy\n            .ok_or_else(|| {\n                PolyfillError::market_data(\n                    format!(\"No book found for token: {}\", token_id),\n                    crate::errors::MarketDataErrorKind::TokenNotFound,\n                )\n            })\n    }\n\n    /// Get all available books\n    /// Returns snapshots of every book we're currently tracking\n    pub fn get_all_books(\u0026self) -\u003e Result\u003cVec\u003ccrate::types::OrderBook\u003e\u003e {\n        let books = self.books.read().map_err(|_| {\n            PolyfillError::internal_simple(\"Failed to acquire book lock\")\n        })?;\n\n        Ok(books.values().map(|book| book.snapshot()).collect())\n    }\n\n    /// Remove stale books\n    /// Cleans up books that haven't been updated recently (probably disconnected)\n    /// This prevents memory leaks from accumulating dead books\n    pub fn cleanup_stale_books(\u0026self, max_age: std::time::Duration) -\u003e Result\u003cusize\u003e {\n        let mut books = self.books.write().map_err(|_| {\n            PolyfillError::internal_simple(\"Failed to acquire book lock\")\n        })?;\n\n        let initial_count = books.len();\n        books.retain(|_, book| !book.is_stale(max_age)); // Keep only non-stale books\n        let removed = initial_count - books.len();\n\n        if removed \u003e 0 {\n            debug!(\"Removed {} stale order books\", removed);\n        }\n\n        Ok(removed)\n    }\n}\n\n/// Order book analytics and statistics\n/// Provides a summary view of the book's health and characteristics\n#[derive(Debug, Clone)]\npub struct BookAnalytics {\n    pub token_id: String,\n    pub timestamp: chrono::DateTime\u003cUtc\u003e,\n    pub bid_count: usize,          // How many different bid price levels\n    pub ask_count: usize,          // How many different ask price levels\n    pub total_bid_size: Decimal,   // Total size of all bids combined\n    pub total_ask_size: Decimal,   // Total size of all asks combined\n    pub spread: Option\u003cDecimal\u003e,   // Current spread (ask - bid)\n    pub spread_pct: Option\u003cDecimal\u003e, // Spread as percentage\n    pub mid_price: Option\u003cDecimal\u003e, // Current mid price\n    pub volatility: Option\u003cDecimal\u003e, // Price volatility (if calculated)\n}\n\nimpl OrderBook {\n    /// Calculate analytics for this book\n    /// Gives you a quick health check of the market\n    pub fn analytics(\u0026self) -\u003e BookAnalytics {\n        let bid_count = self.bids.len();\n        let ask_count = self.asks.len();\n        // Sum up all bid/ask sizes, converting from fixed-point back to Decimal\n        let total_bid_size_units: i64 = self.bids.values().sum();\n        let total_ask_size_units: i64 = self.asks.values().sum();\n        let total_bid_size = qty_to_decimal(total_bid_size_units);\n        let total_ask_size = qty_to_decimal(total_ask_size_units);\n\n        BookAnalytics {\n            token_id: self.token_id.clone(),\n            timestamp: self.timestamp,\n            bid_count,\n            ask_count,\n            total_bid_size,\n            total_ask_size,\n            spread: self.spread(),\n            spread_pct: self.spread_pct(),\n            mid_price: self.mid_price(),\n            volatility: self.calculate_volatility(),\n        }\n    }\n\n    /// Calculate price volatility (simplified)\n    /// This is a placeholder - real volatility needs historical price data\n    fn calculate_volatility(\u0026self) -\u003e Option\u003cDecimal\u003e {\n        // This is a simplified volatility calculation\n        // In a real implementation, you'd want to track price history over time\n        // and calculate standard deviation of price changes\n        None\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n    use rust_decimal_macros::dec; // Convenient macro for creating Decimal literals\n\n    #[test]\n    fn test_order_book_creation() {\n        // Test that we can create a new empty order book\n        let book = OrderBook::new(\"test_token\".to_string(), 10);\n        assert_eq!(book.token_id, \"test_token\");\n        assert_eq!(book.bids.len(), 0); // Should start empty\n        assert_eq!(book.asks.len(), 0); // Should start empty\n    }\n\n    #[test]\n    fn test_apply_delta() {\n        // Test that we can apply order book updates\n        let mut book = OrderBook::new(\"test_token\".to_string(), 10);\n        \n        // Create a buy order at $0.50 for 100 tokens\n        let delta = OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: Utc::now(),\n            side: Side::BUY,\n            price: dec!(0.5),\n            size: dec!(100),\n            sequence: 1,\n        };\n\n        book.apply_delta(delta).unwrap();\n        assert_eq!(book.sequence, 1); // Sequence should update\n        assert_eq!(book.best_bid().unwrap().price, dec!(0.5)); // Should be our bid\n        assert_eq!(book.best_bid().unwrap().size, dec!(100)); // Should be our size\n    }\n\n    #[test]\n    fn test_spread_calculation() {\n        // Test that we can calculate the spread between bid and ask\n        let mut book = OrderBook::new(\"test_token\".to_string(), 10);\n        \n        // Add a bid at $0.50\n        book.apply_delta(OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: Utc::now(),\n            side: Side::BUY,\n            price: dec!(0.5),\n            size: dec!(100),\n            sequence: 1,\n        }).unwrap();\n\n        // Add an ask at $0.52\n        book.apply_delta(OrderDelta {\n            token_id: \"test_token\".to_string(),\n            timestamp: Utc::now(),\n            side: Side::SELL,\n            price: dec!(0.52),\n            size: dec!(100),\n            sequence: 2,\n        }).unwrap();\n\n        let spread = book.spread().unwrap();\n        assert_eq!(spread, dec!(0.02)); // $0.52 - $0.50 = $0.02\n    }\n\n    #[test]\n    fn test_market_impact() {\n        // Test market impact calculation for a large order\n        let mut book = OrderBook::new(\"test_token\".to_string(), 10);\n        \n        // Add multiple ask levels (people selling at different prices)\n        // $0.50 for 100 tokens, $0.51 for 100 tokens, $0.52 for 100 tokens\n        for (i, price) in [dec!(0.50), dec!(0.51), dec!(0.52)].iter().enumerate() {\n            book.apply_delta(OrderDelta {\n                token_id: \"test_token\".to_string(),\n                timestamp: Utc::now(),\n                side: Side::SELL,\n                price: *price,\n                size: dec!(100),\n                sequence: i as u64 + 1,\n            }).unwrap();\n        }\n\n        // Try to buy 150 tokens (will need to hit multiple price levels)\n        let impact = book.calculate_market_impact(Side::BUY, dec!(150)).unwrap();\n        assert!(impact.average_price \u003e dec!(0.50)); // Should be worse than best price\n        assert!(impact.average_price \u003c dec!(0.51)); // But not as bad as second level\n    }\n} 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price,\n            size,\n            side,\n        }\n    }\n}\n\nimpl Default for OrderArgs {\n    fn default() -\u003e Self {\n        Self {\n            token_id: \"\".to_string(),\n            price: Decimal::ZERO,\n            size: Decimal::ZERO,\n            side: Side::BUY,\n        }\n    }\n}\n\n/// Main client for interacting with Polymarket API\npub struct ClobClient {\n    http_client: Client,\n    base_url: String,\n    chain_id: u64,\n    signer: Option\u003cPrivateKeySigner\u003e,\n    api_creds: Option\u003cApiCreds\u003e,\n    order_builder: Option\u003ccrate::orders::OrderBuilder\u003e,\n}\n\nimpl ClobClient {\n    /// Create a new client\n    pub fn new(host: \u0026str) -\u003e Self {\n        Self {\n            http_client: Client::new(),\n            base_url: host.to_string(),\n            chain_id: 137, // Default to Polygon\n            signer: None,\n            api_creds: None,\n            order_builder: None,\n        }\n    }\n\n    /// Create a client with L1 headers (for authentication)\n    pub fn with_l1_headers(host: \u0026str, private_key: \u0026str, chain_id: u64) -\u003e Self {\n        let signer = private_key.parse::\u003cPrivateKeySigner\u003e()\n            .expect(\"Invalid private key\");\n        \n        let order_builder = crate::orders::OrderBuilder::new(signer.clone(), None, None);\n        \n        Self {\n            http_client: Client::new(),\n            base_url: host.to_string(),\n            chain_id,\n            signer: Some(signer),\n            api_creds: None,\n            order_builder: Some(order_builder),\n        }\n    }\n\n    /// Create a client with L2 headers (for API key authentication)\n    pub fn with_l2_headers(host: \u0026str, private_key: \u0026str, chain_id: u64, api_creds: ApiCreds) -\u003e Self {\n        let signer = private_key.parse::\u003cPrivateKeySigner\u003e()\n            .expect(\"Invalid private key\");\n        \n        let order_builder = crate::orders::OrderBuilder::new(signer.clone(), None, None);\n        \n        Self {\n            http_client: Client::new(),\n            base_url: host.to_string(),\n            chain_id,\n            signer: Some(signer),\n            api_creds: Some(api_creds),\n            order_builder: Some(order_builder),\n        }\n    }\n\n    /// Set API credentials\n    pub fn set_api_creds(\u0026mut self, api_creds: ApiCreds) {\n        self.api_creds = Some(api_creds);\n    }\n\n    /// Test basic connectivity\n    pub async fn get_ok(\u0026self) -\u003e bool {\n        match self.http_client.get(\u0026format!(\"{}/ok\", self.base_url)).send().await {\n            Ok(response) =\u003e response.status().is_success(),\n            Err(_) =\u003e false,\n        }\n    }\n\n    /// Get server time\n    pub async fn get_server_time(\u0026self) -\u003e Result\u003cu64\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/time\", self.base_url))\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get server time\"));\n        }\n\n        let time_text = response.text().await?;\n        let timestamp = time_text.trim()\n            .parse::\u003cu64\u003e()\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid timestamp format: {}\", e), None))?;\n\n        Ok(timestamp)\n    }\n\n\n    /// Get order book for a token\n    pub async fn get_order_book(\u0026self, token_id: \u0026str) -\u003e Result\u003cOrderBookSummary\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/book\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get order book\"));\n        }\n\n        let order_book: OrderBookSummary = response.json().await?;\n        Ok(order_book)\n    }\n\n    /// Get midpoint for a token\n    pub async fn get_midpoint(\u0026self, token_id: \u0026str) -\u003e Result\u003cMidpointResponse\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/midpoint\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get midpoint\"));\n        }\n\n        let midpoint: MidpointResponse = response.json().await?;\n        Ok(midpoint)\n    }\n\n    /// Get spread for a token\n    pub async fn get_spread(\u0026self, token_id: \u0026str) -\u003e Result\u003cSpreadResponse\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/spread\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get spread\"));\n        }\n\n        let spread: SpreadResponse = response.json().await?;\n        Ok(spread)\n    }\n\n    /// Get spreads for multiple tokens (batch)\n    pub async fn get_spreads(\u0026self, token_ids: \u0026[String]) -\u003e Result\u003cstd::collections::HashMap\u003cString, Decimal\u003e\u003e {\n        let request_data: Vec\u003cstd::collections::HashMap\u003c\u0026str, String\u003e\u003e = token_ids\n            .iter()\n            .map(|id| {\n                let mut map = std::collections::HashMap::new();\n                map.insert(\"token_id\", id.clone());\n                map\n            })\n            .collect();\n\n        let response = self.http_client\n            .post(\u0026format!(\"{}/spreads\", self.base_url))\n            .json(\u0026request_data)\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get batch spreads\"));\n        }\n\n        response.json::\u003cstd::collections::HashMap\u003cString, Decimal\u003e\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get price for a token and side\n    pub async fn get_price(\u0026self, token_id: \u0026str, side: Side) -\u003e Result\u003cPriceResponse\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/price\", self.base_url))\n            .query(\u0026[\n                (\"token_id\", token_id),\n                (\"side\", side.as_str()),\n            ])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get price\"));\n        }\n\n        let price: PriceResponse = response.json().await?;\n        Ok(price)\n    }\n\n    /// Get tick size for a token\n    pub async fn get_tick_size(\u0026self, token_id: \u0026str) -\u003e Result\u003cDecimal\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/tick-size\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get tick size\"));\n        }\n\n        let tick_size_response: Value = response.json().await?;\n        let tick_size = tick_size_response[\"minimum_tick_size\"]\n            .as_str()\n            .and_then(|s| Decimal::from_str(s).ok())\n            .or_else(|| tick_size_response[\"minimum_tick_size\"].as_f64().map(|f| Decimal::from_f64(f).unwrap_or(Decimal::ZERO)))\n            .ok_or_else(|| PolyfillError::parse(\"Invalid tick size format\", None))?;\n\n        Ok(tick_size)\n    }\n\n    /// Create a new API key\n    pub async fn create_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e Result\u003cApiCreds\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        \n        let headers = create_l1_headers(signer, nonce)?;\n        let req = self.create_request_with_headers(Method::POST, \"/auth/api-key\", headers.into_iter());\n        \n        let response = req.send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to create API key\"));\n        }\n        \n        Ok(response.json::\u003cApiCreds\u003e().await?)\n    }\n\n    /// Derive an existing API key\n    pub async fn derive_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e Result\u003cApiCreds\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        \n        let headers = create_l1_headers(signer, nonce)?;\n        let req = self.create_request_with_headers(Method::GET, \"/auth/derive-api-key\", headers.into_iter());\n        \n        let response = req.send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to derive API key\"));\n        }\n        \n        Ok(response.json::\u003cApiCreds\u003e().await?)\n    }\n\n    /// Create or derive API key (try create first, fallback to derive)\n    pub async fn create_or_derive_api_key(\u0026self, nonce: Option\u003cU256\u003e) -\u003e Result\u003cApiCreds\u003e {\n        match self.create_api_key(nonce).await {\n            Ok(creds) =\u003e Ok(creds),\n            Err(_) =\u003e self.derive_api_key(nonce).await,\n        }\n    }\n\n    /// Get all API keys for the authenticated user\n    pub async fn get_api_keys(\u0026self) -\u003e Result\u003cVec\u003cString\u003e\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::GET;\n        let endpoint = \"/auth/api-keys\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        let api_keys_response: crate::types::ApiKeysResponse = response.json().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))?;\n\n        Ok(api_keys_response.api_keys)\n    }\n\n    /// Delete the current API key\n    pub async fn delete_api_key(\u0026self) -\u003e Result\u003cString\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::DELETE;\n        let endpoint = \"/auth/api-key\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.text().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Helper to create request with headers\n    fn create_request_with_headers(\n        \u0026self,\n        method: Method,\n        endpoint: \u0026str,\n        headers: impl Iterator\u003cItem = (\u0026'static str, String)\u003e,\n    ) -\u003e RequestBuilder {\n        let req = self.http_client.request(method, format!(\"{}{}\", \u0026self.base_url, endpoint));\n        headers.fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v))\n    }\n\n    /// Get neg risk for a token\n    pub async fn get_neg_risk(\u0026self, token_id: \u0026str) -\u003e Result\u003cbool\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/neg-risk\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get neg risk\"));\n        }\n\n        let neg_risk_response: Value = response.json().await?;\n        let neg_risk = neg_risk_response[\"neg_risk\"]\n            .as_bool()\n            .ok_or_else(|| PolyfillError::parse(\"Invalid neg risk format\", None))?;\n\n        Ok(neg_risk)\n    }\n\n    /// Resolve tick size for an order\n    async fn resolve_tick_size(\n        \u0026self,\n        token_id: \u0026str,\n        tick_size: Option\u003cDecimal\u003e,\n    ) -\u003e Result\u003cDecimal\u003e {\n        let min_tick_size = self.get_tick_size(token_id).await?;\n\n        match tick_size {\n            None =\u003e Ok(min_tick_size),\n            Some(t) =\u003e {\n                if t \u003c min_tick_size {\n                    Err(PolyfillError::validation(format!(\n                        \"Tick size {} is smaller than min_tick_size {} for token_id: {}\",\n                        t, min_tick_size, token_id\n                    )))\n                } else {\n                    Ok(t)\n                }\n            }\n        }\n    }\n\n    /// Get filled order options\n    async fn get_filled_order_options(\n        \u0026self,\n        token_id: \u0026str,\n        options: Option\u003c\u0026OrderOptions\u003e,\n    ) -\u003e Result\u003cOrderOptions\u003e {\n        let (tick_size, neg_risk, fee_rate_bps) = match options {\n            Some(o) =\u003e (o.tick_size, o.neg_risk, o.fee_rate_bps),\n            None =\u003e (None, None, None),\n        };\n\n        let tick_size = self.resolve_tick_size(token_id, tick_size).await?;\n        let neg_risk = match neg_risk {\n            Some(nr) =\u003e nr,\n            None =\u003e self.get_neg_risk(token_id).await?,\n        };\n\n        Ok(OrderOptions {\n            tick_size: Some(tick_size),\n            neg_risk: Some(neg_risk),\n            fee_rate_bps,\n        })\n    }\n\n    /// Check if price is in valid range\n    fn is_price_in_range(\u0026self, price: Decimal, tick_size: Decimal) -\u003e bool {\n        let min_price = tick_size;\n        let max_price = Decimal::ONE - tick_size;\n        price \u003e= min_price \u0026\u0026 price \u003c= max_price\n    }\n\n    /// Create an order\n    pub async fn create_order(\n        \u0026self,\n        order_args: \u0026OrderArgs,\n        expiration: Option\u003cu64\u003e,\n        extras: Option\u003ccrate::types::ExtraOrderArgs\u003e,\n        options: Option\u003c\u0026OrderOptions\u003e,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let order_builder = self.order_builder.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Order builder not initialized\"))?;\n\n        let create_order_options = self\n            .get_filled_order_options(\u0026order_args.token_id, options)\n            .await?;\n        \n        let expiration = expiration.unwrap_or(0);\n        let extras = extras.unwrap_or_default();\n\n        if !self.is_price_in_range(\n            order_args.price,\n            create_order_options.tick_size.expect(\"Should be filled\"),\n        ) {\n            return Err(PolyfillError::validation(\"Price is not in range of tick_size\"));\n        }\n\n        order_builder.create_order(\n            self.chain_id,\n            order_args,\n            expiration,\n            \u0026extras,\n            \u0026create_order_options,\n        )\n    }\n\n    /// Calculate market price from order book\n    async fn calculate_market_price(\n        \u0026self,\n        token_id: \u0026str,\n        side: Side,\n        amount: Decimal,\n    ) -\u003e Result\u003cDecimal\u003e {\n        let book = self.get_order_book(token_id).await?;\n        let order_builder = self.order_builder.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Order builder not initialized\"))?;\n\n        // Convert OrderSummary to BookLevel\n        let levels: Vec\u003ccrate::types::BookLevel\u003e = match side {\n            Side::BUY =\u003e book.asks.into_iter().map(|s| crate::types::BookLevel {\n                price: s.price,\n                size: s.size,\n            }).collect(),\n            Side::SELL =\u003e book.bids.into_iter().map(|s| crate::types::BookLevel {\n                price: s.price,\n                size: s.size,\n            }).collect(),\n        };\n\n        order_builder.calculate_market_price(\u0026levels, amount)\n    }\n\n    /// Create a market order\n    pub async fn create_market_order(\n        \u0026self,\n        order_args: \u0026crate::types::MarketOrderArgs,\n        extras: Option\u003ccrate::types::ExtraOrderArgs\u003e,\n        options: Option\u003c\u0026OrderOptions\u003e,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let order_builder = self.order_builder.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Order builder not initialized\"))?;\n\n        let create_order_options = self\n            .get_filled_order_options(\u0026order_args.token_id, options)\n            .await?;\n\n        let extras = extras.unwrap_or_default();\n        let price = self\n            .calculate_market_price(\u0026order_args.token_id, Side::BUY, order_args.amount)\n            .await?;\n\n        if !self.is_price_in_range(\n            price,\n            create_order_options.tick_size.expect(\"Should be filled\"),\n        ) {\n            return Err(PolyfillError::validation(\"Price is not in range of tick_size\"));\n        }\n\n        order_builder.create_market_order(\n            self.chain_id,\n            order_args,\n            price,\n            \u0026extras,\n            \u0026create_order_options,\n        )\n    }\n\n    /// Post an order to the exchange\n    pub async fn post_order(\n        \u0026self,\n        order: SignedOrderRequest,\n        order_type: OrderType,\n    ) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let body = PostOrder::new(order, api_creds.api_key.clone(), order_type);\n\n        let headers = create_l2_headers(signer, api_creds, \"POST\", \"/order\", Some(\u0026body))?;\n        let req = self.create_request_with_headers(Method::POST, \"/order\", headers.into_iter());\n\n        let response = req.json(\u0026body).send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to post order\"));\n        }\n\n        Ok(response.json::\u003cValue\u003e().await?)\n    }\n\n    /// Create and post an order in one call\n    pub async fn create_and_post_order(\u0026self, order_args: \u0026OrderArgs) -\u003e Result\u003cValue\u003e {\n        let order = self.create_order(order_args, None, None, None).await?;\n        self.post_order(order, OrderType::GTC).await\n    }\n\n    /// Cancel an order\n    pub async fn cancel(\u0026self, order_id: \u0026str) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let body = std::collections::HashMap::from([(\"orderID\", order_id)]);\n\n        let headers = create_l2_headers(signer, api_creds, \"DELETE\", \"/order\", Some(\u0026body))?;\n        let req = self.create_request_with_headers(Method::DELETE, \"/order\", headers.into_iter());\n\n        let response = req.json(\u0026body).send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to cancel order\"));\n        }\n\n        Ok(response.json::\u003cValue\u003e().await?)\n    }\n\n    /// Cancel multiple orders\n    pub async fn cancel_orders(\u0026self, order_ids: \u0026[String]) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let headers = create_l2_headers(signer, api_creds, \"DELETE\", \"/orders\", Some(order_ids))?;\n        let req = self.create_request_with_headers(Method::DELETE, \"/orders\", headers.into_iter());\n\n        let response = req.json(order_ids).send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to cancel orders\"));\n        }\n\n        Ok(response.json::\u003cValue\u003e().await?)\n    }\n\n    /// Cancel all orders\n    pub async fn cancel_all(\u0026self) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, \"DELETE\", \"/cancel-all\", None)?;\n        let req = self.create_request_with_headers(Method::DELETE, \"/cancel-all\", headers.into_iter());\n\n        let response = req.send().await?;\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to cancel all orders\"));\n        }\n\n        Ok(response.json::\u003cValue\u003e().await?)\n    }\n\n    /// Get open orders with optional filtering\n    /// \n    /// This retrieves all open orders for the authenticated user. You can filter by:\n    /// - Order ID (exact match)\n    /// - Asset/Token ID (all orders for a specific token)\n    /// - Market ID (all orders for a specific market)\n    /// \n    /// The response includes order status, fill information, and timestamps.\n    pub async fn get_orders(\u0026self, params: Option\u003c\u0026crate::types::OpenOrderParams\u003e, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003cVec\u003ccrate::types::OpenOrder\u003e\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let method = Method::GET;\n        let endpoint = \"/data/orders\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let query_params = match params {\n            None =\u003e Vec::new(),\n            Some(p) =\u003e p.to_query_params(),\n        };\n\n        let mut next_cursor = next_cursor.unwrap_or(\"MA==\").to_string(); // INITIAL_CURSOR\n        let mut output = Vec::new();\n        \n        while next_cursor != \"LTE=\" { // END_CURSOR\n            let req = self.http_client\n                .request(method.clone(), format!(\"{}{}\", self.base_url, endpoint))\n                .query(\u0026query_params)\n                .query(\u0026[(\"next_cursor\", \u0026next_cursor)]);\n\n            let r = headers\n                .clone()\n                .into_iter()\n                .fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v));\n\n            let resp = r.send().await\n                .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?\n                .json::\u003cValue\u003e().await\n                .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))?;\n\n            let new_cursor = resp[\"next_cursor\"]\n                .as_str()\n                .ok_or_else(|| PolyfillError::parse(\"Failed to parse next cursor\".to_string(), None))?\n                .to_owned();\n\n            next_cursor = new_cursor;\n\n            let results = resp[\"data\"].clone();\n            let orders = serde_json::from_value::\u003cVec\u003ccrate::types::OpenOrder\u003e\u003e(results)\n                .map_err(|e| PolyfillError::parse(format!(\"Failed to parse data from order response: {}\", e), None))?;\n            output.extend(orders);\n        }\n        \n        Ok(output)\n    }\n\n    /// Get trade history with optional filtering\n    /// \n    /// This retrieves historical trades for the authenticated user. You can filter by:\n    /// - Trade ID (exact match)\n    /// - Maker address (trades where you were the maker)\n    /// - Market ID (trades in a specific market)\n    /// - Asset/Token ID (trades for a specific token)\n    /// - Time range (before/after timestamps)\n    /// \n    /// Trades are returned in reverse chronological order (newest first).\n    pub async fn get_trades(\u0026self, trade_params: Option\u003c\u0026crate::types::TradeParams\u003e, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003cVec\u003cValue\u003e\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let method = Method::GET;\n        let endpoint = \"/data/trades\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let query_params = match trade_params {\n            None =\u003e Vec::new(),\n            Some(p) =\u003e p.to_query_params(),\n        };\n\n        let mut next_cursor = next_cursor.unwrap_or(\"MA==\").to_string(); // INITIAL_CURSOR\n        let mut output = Vec::new();\n        \n        while next_cursor != \"LTE=\" { // END_CURSOR\n            let req = self.http_client\n                .request(method.clone(), format!(\"{}{}\", self.base_url, endpoint))\n                .query(\u0026query_params)\n                .query(\u0026[(\"next_cursor\", \u0026next_cursor)]);\n\n            let r = headers\n                .clone()\n                .into_iter()\n                .fold(req, |r, (k, v)| r.header(HeaderName::from_static(k), v));\n\n            let resp = r.send().await\n                .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?\n                .json::\u003cValue\u003e().await\n                .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))?;\n\n            let new_cursor = resp[\"next_cursor\"]\n                .as_str()\n                .ok_or_else(|| PolyfillError::parse(\"Failed to parse next cursor\".to_string(), None))?\n                .to_owned();\n\n            next_cursor = new_cursor;\n\n            let results = resp[\"data\"].clone();\n            output.push(results);\n        }\n        \n        Ok(output)\n    }\n\n    /// Get balance and allowance information for all assets\n    /// \n    /// This returns the current balance and allowance for each asset in your account.\n    /// Balance is how much you own, allowance is how much the exchange can spend on your behalf.\n    /// \n    /// You need both balance and allowance to place orders - the exchange needs permission\n    /// to move your tokens when orders are filled.\n    pub async fn get_balance_allowance(\u0026self, params: Option\u003ccrate::types::BalanceAllowanceParams\u003e) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let mut params = params.unwrap_or_default();\n        if params.signature_type.is_none() {\n            params.set_signature_type(\n                self.order_builder\n                    .as_ref()\n                    .expect(\"OrderBuilder not set\")\n                    .get_sig_type(),\n            );\n        }\n\n        let query_params = params.to_query_params();\n\n        let method = Method::GET;\n        let endpoint = \"/balance-allowance\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .query(\u0026query_params)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Set up notifications for order fills and other events\n    /// \n    /// This configures push notifications so you get alerted when:\n    /// - Your orders get filled\n    /// - Your orders get cancelled\n    /// - Market conditions change significantly\n    /// \n    /// The signature proves you own the account and want to receive notifications.\n    pub async fn get_notifications(\u0026self) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"Signer not set\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"API credentials not set\"))?;\n\n        let method = Method::GET;\n        let endpoint = \"/notifications\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .query(\u0026[(\n                \"signature_type\",\n                \u0026self\n                    .order_builder\n                    .as_ref()\n                    .expect(\"OrderBuilder not set\")\n                    .get_sig_type().to_string(),\n            )])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get midpoints for multiple tokens in a single request\n    /// \n    /// This is much more efficient than calling get_midpoint() multiple times.\n    /// Instead of N round trips, you make just 1 request and get all the midpoints back.\n    /// \n    /// Midpoints are returned as a HashMap where the key is the token_id and the value\n    /// is the midpoint price (or None if there's no valid midpoint).\n    pub async fn get_midpoints(\u0026self, token_ids: \u0026[String]) -\u003e Result\u003cstd::collections::HashMap\u003cString, Decimal\u003e\u003e {\n        let request_data: Vec\u003cstd::collections::HashMap\u003c\u0026str, String\u003e\u003e = token_ids\n            .iter()\n            .map(|id| {\n                let mut map = std::collections::HashMap::new();\n                map.insert(\"token_id\", id.clone());\n                map\n            })\n            .collect();\n        \n        let response = self.http_client\n            .post(\u0026format!(\"{}/midpoints\", self.base_url))\n            .json(\u0026request_data)\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get batch midpoints\"));\n        }\n\n        let midpoints: std::collections::HashMap\u003cString, Decimal\u003e = response.json().await?;\n        Ok(midpoints)\n    }\n\n    /// Get bid/ask/mid prices for multiple tokens in a single request\n    /// \n    /// This gives you the full price picture for multiple tokens at once.\n    /// Much more efficient than individual calls, especially when you're tracking\n    /// a portfolio or comparing multiple markets.\n    /// \n    /// Returns bid (best buy price), ask (best sell price), and mid (average) for each token.\n    pub async fn get_prices(\u0026self, book_params: \u0026[crate::types::BookParams]) -\u003e Result\u003cstd::collections::HashMap\u003cString, std::collections::HashMap\u003cSide, Decimal\u003e\u003e\u003e {\n        let request_data: Vec\u003cstd::collections::HashMap\u003c\u0026str, String\u003e\u003e = book_params\n            .iter()\n            .map(|params| {\n                let mut map = std::collections::HashMap::new();\n                map.insert(\"token_id\", params.token_id.clone());\n                map.insert(\"side\", params.side.as_str().to_string());\n                map\n            })\n            .collect();\n        \n        let response = self.http_client\n            .post(\u0026format!(\"{}/prices\", self.base_url))\n            .json(\u0026request_data)\n            .send()\n            .await?;\n\n        if !response.status().is_success() {\n            return Err(PolyfillError::api(response.status().as_u16(), \"Failed to get batch prices\"));\n        }\n\n        let prices: std::collections::HashMap\u003cString, std::collections::HashMap\u003cSide, Decimal\u003e\u003e = response.json().await?;\n        Ok(prices)\n    }\n\n    /// Get order book for multiple tokens (batch) - reference implementation compatible\n    pub async fn get_order_books(\u0026self, token_ids: \u0026[String]) -\u003e Result\u003cVec\u003cOrderBookSummary\u003e\u003e {\n        let request_data: Vec\u003cstd::collections::HashMap\u003c\u0026str, String\u003e\u003e = token_ids\n            .iter()\n            .map(|id| {\n                let mut map = std::collections::HashMap::new();\n                map.insert(\"token_id\", id.clone());\n                map\n            })\n            .collect();\n\n        let response = self.http_client\n            .post(\u0026format!(\"{}/books\", self.base_url))\n            .json(\u0026request_data)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cVec\u003cOrderBookSummary\u003e\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get single order by ID\n    pub async fn get_order(\u0026self, order_id: \u0026str) -\u003e Result\u003ccrate::types::OpenOrder\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::GET;\n        let endpoint = \u0026format!(\"/data/order/{}\", order_id);\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::OpenOrder\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get last trade price for a token\n    pub async fn get_last_trade_price(\u0026self, token_id: \u0026str) -\u003e Result\u003cValue\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/last-trade-price\", self.base_url))\n            .query(\u0026[(\"token_id\", token_id)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get last trade prices for multiple tokens\n    pub async fn get_last_trade_prices(\u0026self, token_ids: \u0026[String]) -\u003e Result\u003cValue\u003e {\n        let request_data: Vec\u003cstd::collections::HashMap\u003c\u0026str, String\u003e\u003e = token_ids\n            .iter()\n            .map(|id| {\n                let mut map = std::collections::HashMap::new();\n                map.insert(\"token_id\", id.clone());\n                map\n            })\n            .collect();\n\n        let response = self.http_client\n            .post(\u0026format!(\"{}/last-trades-prices\", self.base_url))\n            .json(\u0026request_data)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Cancel market orders with optional filters\n    pub async fn cancel_market_orders(\u0026self, market: Option\u003c\u0026str\u003e, asset_id: Option\u003c\u0026str\u003e) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::DELETE;\n        let endpoint = \"/cancel-market-orders\";\n        let body = std::collections::HashMap::from([\n            (\"market\", market.unwrap_or(\"\")),\n            (\"asset_id\", asset_id.unwrap_or(\"\")),\n        ]);\n\n        let headers = create_l2_headers(signer, api_creds, method.as_str(), endpoint, Some(\u0026body))?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .json(\u0026body)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Drop (delete) notifications by IDs\n    pub async fn drop_notifications(\u0026self, ids: \u0026[String]) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::DELETE;\n        let endpoint = \"/notifications\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .query(\u0026[(\"ids\", ids.join(\",\"))])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Update balance allowance\n    pub async fn update_balance_allowance(\u0026self, params: Option\u003ccrate::types::BalanceAllowanceParams\u003e) -\u003e Result\u003cValue\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let mut params = params.unwrap_or_default();\n        if params.signature_type.is_none() {\n            params.set_signature_type(\n                self.order_builder\n                    .as_ref()\n                    .expect(\"OrderBuilder not set\")\n                    .get_sig_type(),\n            );\n        }\n\n        let query_params = params.to_query_params();\n\n        let method = Method::GET;\n        let endpoint = \"/balance-allowance/update\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .query(\u0026query_params)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Check if an order is scoring\n    pub async fn is_order_scoring(\u0026self, order_id: \u0026str) -\u003e Result\u003cbool\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::GET;\n        let endpoint = \"/order-scoring\";\n        let headers = create_l2_headers::\u003cValue\u003e(signer, api_creds, method.as_str(), endpoint, None)?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .query(\u0026[(\"order_id\", order_id)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        let result: Value = response.json().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))?;\n\n        Ok(result[\"scoring\"].as_bool().unwrap_or(false))\n    }\n\n    /// Check if multiple orders are scoring\n    pub async fn are_orders_scoring(\u0026self, order_ids: \u0026[\u0026str]) -\u003e Result\u003cstd::collections::HashMap\u003cString, bool\u003e\u003e {\n        let signer = self.signer.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"Signer not configured\"))?;\n        let api_creds = self.api_creds.as_ref()\n            .ok_or_else(|| PolyfillError::config(\"API credentials not configured\"))?;\n\n        let method = Method::POST;\n        let endpoint = \"/orders-scoring\";\n        let headers = create_l2_headers(signer, api_creds, method.as_str(), endpoint, Some(order_ids))?;\n\n        let response = self.http_client\n            .request(method, format!(\"{}{}\", self.base_url, endpoint))\n            .headers(headers.into_iter().map(|(k, v)| (HeaderName::from_static(k), v.parse().unwrap())).collect())\n            .json(order_ids)\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cstd::collections::HashMap\u003cString, bool\u003e\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get sampling markets with pagination\n    pub async fn get_sampling_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003ccrate::types::MarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(\"MA==\"); // INITIAL_CURSOR\n\n        let response = self.http_client\n            .get(\u0026format!(\"{}/sampling-markets\", self.base_url))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::MarketsResponse\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get sampling simplified markets with pagination\n    pub async fn get_sampling_simplified_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003ccrate::types::SimplifiedMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(\"MA==\"); // INITIAL_CURSOR\n\n        let response = self.http_client\n            .get(\u0026format!(\"{}/sampling-simplified-markets\", self.base_url))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::SimplifiedMarketsResponse\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get markets with pagination\n    pub async fn get_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003ccrate::types::MarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(\"MA==\"); // INITIAL_CURSOR\n\n        let response = self.http_client\n            .get(\u0026format!(\"{}/markets\", self.base_url))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::MarketsResponse\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get simplified markets with pagination\n    pub async fn get_simplified_markets(\u0026self, next_cursor: Option\u003c\u0026str\u003e) -\u003e Result\u003ccrate::types::SimplifiedMarketsResponse\u003e {\n        let next_cursor = next_cursor.unwrap_or(\"MA==\"); // INITIAL_CURSOR\n\n        let response = self.http_client\n            .get(\u0026format!(\"{}/simplified-markets\", self.base_url))\n            .query(\u0026[(\"next_cursor\", next_cursor)])\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::SimplifiedMarketsResponse\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get single market by condition ID\n    pub async fn get_market(\u0026self, condition_id: \u0026str) -\u003e Result\u003ccrate::types::Market\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/markets/{}\", self.base_url, condition_id))\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003ccrate::types::Market\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n\n    /// Get market trades events\n    pub async fn get_market_trades_events(\u0026self, condition_id: \u0026str) -\u003e Result\u003cValue\u003e {\n        let response = self.http_client\n            .get(\u0026format!(\"{}/live-activity/events/{}\", self.base_url, condition_id))\n            .send()\n            .await\n            .map_err(|e| PolyfillError::network(format!(\"Request failed: {}\", e), e))?;\n\n        response.json::\u003cValue\u003e().await\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse response: {}\", e), None))\n    }\n}\n\n// Re-export types from the canonical location in types.rs\npub use crate::types::{\n    ExtraOrderArgs, MarketOrderArgs, OrderBookSummary, OrderSummary, \n    MidpointResponse, SpreadResponse, PriceResponse, TickSizeResponse, \n    NegRiskResponse, MarketsResponse, Market, Token, Rewards,\n};\n\n// Compatibility types that need to stay in client.rs\n#[derive(Debug, Default)]\npub struct CreateOrderOptions {\n    pub tick_size: Option\u003cDecimal\u003e,\n    pub neg_risk: Option\u003cbool\u003e,\n}\n\n// Re-export for compatibility\npub type PolyfillClient = ClobClient;\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n    use crate::types::*;\n    use mockito::{Matcher, Server};\n    use rust_decimal::Decimal;\n    use std::str::FromStr;\n    use tokio;\n\n    fn create_test_client(base_url: \u0026str) -\u003e ClobClient {\n        ClobClient::new(base_url)\n    }\n\n    fn create_test_client_with_auth(base_url: \u0026str) -\u003e ClobClient {\n        ClobClient::with_l1_headers(\n            base_url,\n            \"0x1234567890123456789012345678901234567890123456789012345678901234\",\n            137,\n        )\n    }\n\n    #[tokio::test]\n    async fn test_client_creation() {\n        let client = create_test_client(\"https://test.example.com\");\n        assert_eq!(client.base_url, \"https://test.example.com\");\n        assert!(client.signer.is_none());\n        assert!(client.api_creds.is_none());\n    }\n\n    #[tokio::test]\n    async fn test_client_with_l1_headers() {\n        let client = create_test_client_with_auth(\"https://test.example.com\");\n        assert_eq!(client.base_url, \"https://test.example.com\");\n        assert!(client.signer.is_some());\n        assert_eq!(client.chain_id, 137);\n    }\n\n    #[tokio::test]\n    async fn test_client_with_l2_headers() {\n        let api_creds = ApiCredentials {\n            api_key: \"test_key\".to_string(),\n            secret: \"test_secret\".to_string(),\n            passphrase: \"test_passphrase\".to_string(),\n        };\n        \n        let client = ClobClient::with_l2_headers(\n            \"https://test.example.com\",\n            \"0x1234567890123456789012345678901234567890123456789012345678901234\",\n            137,\n            api_creds.clone(),\n        );\n        \n        assert_eq!(client.base_url, \"https://test.example.com\");\n        assert!(client.signer.is_some());\n        assert!(client.api_creds.is_some());\n        assert_eq!(client.chain_id, 137);\n    }\n\n    #[tokio::test]\n    async fn test_set_api_creds() {\n        let mut client = create_test_client(\"https://test.example.com\");\n        assert!(client.api_creds.is_none());\n\n        let api_creds = ApiCredentials {\n            api_key: \"test_key\".to_string(),\n            secret: \"test_secret\".to_string(),\n            passphrase: \"test_passphrase\".to_string(),\n        };\n\n        client.set_api_creds(api_creds.clone());\n        assert!(client.api_creds.is_some());\n        assert_eq!(client.api_creds.unwrap().api_key, \"test_key\");\n    }\n\n    #[tokio::test]\n    async fn test_get_sampling_markets_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"limit\": \"10\",\n            \"count\": \"2\", \n            \"next_cursor\": null,\n            \"data\": [\n                {\n                    \"condition_id\": \"0x123\",\n                    \"tokens\": [\n                        {\"token_id\": \"0x456\", \"outcome\": \"Yes\"},\n                        {\"token_id\": \"0x789\", \"outcome\": \"No\"}\n                    ],\n                    \"rewards\": {\n                        \"rates\": null,\n                        \"min_size\": \"1.0\",\n                        \"max_spread\": \"0.1\",\n                        \"event_start_date\": null,\n                        \"event_end_date\": null,\n                        \"in_game_multiplier\": null,\n                        \"reward_epoch\": null\n                    },\n                    \"min_incentive_size\": null,\n                    \"max_incentive_spread\": null,\n                    \"active\": true,\n                    \"closed\": false,\n                    \"question_id\": \"0x123\",\n                    \"minimum_order_size\": \"1.0\",\n                    \"minimum_tick_size\": \"0.01\",\n                    \"description\": \"Test market\",\n                    \"category\": \"test\",\n                    \"end_date_iso\": null,\n                    \"game_start_time\": null,\n                    \"question\": \"Will this test pass?\",\n                    \"market_slug\": \"test-market\",\n                    \"seconds_delay\": \"0\",\n                    \"icon\": \"\",\n                    \"fpmm\": \"\"\n                }\n            ]\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/sampling-markets\")\n            .match_query(Matcher::UrlEncoded(\"next_cursor\".into(), \"MA==\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_sampling_markets(None).await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let markets = result.unwrap();\n        assert_eq!(markets.data.len(), 1);\n        assert_eq!(markets.data[0].question, \"Will this test pass?\");\n    }\n\n    #[tokio::test]\n    async fn test_get_sampling_markets_with_cursor() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"limit\": \"5\",\n            \"count\": \"0\",\n            \"next_cursor\": null,\n            \"data\": []\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/sampling-markets\")\n            .match_query(Matcher::AllOf(vec![\n                Matcher::UrlEncoded(\"next_cursor\".into(), \"test_cursor\".into()),\n            ]))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_sampling_markets(Some(\"test_cursor\")).await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let markets = result.unwrap();\n        assert_eq!(markets.data.len(), 0);\n    }\n\n    #[tokio::test]\n    async fn test_get_order_book_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"market\": \"0x123\",\n            \"asset_id\": \"0x123\",\n            \"hash\": \"0xabc123\",\n            \"timestamp\": \"1234567890\",\n            \"bids\": [\n                {\"price\": \"0.75\", \"size\": \"100.0\"}\n            ],\n            \"asks\": [\n                {\"price\": \"0.76\", \"size\": \"50.0\"}\n            ]\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/book\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_order_book(\"0x123\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let book = result.unwrap();\n        assert_eq!(book.market, \"0x123\");\n        assert_eq!(book.bids.len(), 1);\n        assert_eq!(book.asks.len(), 1);\n    }\n\n    #[tokio::test]\n    async fn test_get_midpoint_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"mid\": \"0.755\"\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/midpoint\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_midpoint(\"0x123\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let response = result.unwrap();\n        assert_eq!(response.mid, Decimal::from_str(\"0.755\").unwrap());\n    }\n\n    #[tokio::test]\n    async fn test_get_spread_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"spread\": \"0.01\"\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/spread\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_spread(\"0x123\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let response = result.unwrap();\n        assert_eq!(response.spread, Decimal::from_str(\"0.01\").unwrap());\n    }\n\n    #[tokio::test]\n    async fn test_get_price_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"price\": \"0.76\"\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/price\")\n            .match_query(Matcher::AllOf(vec![\n                Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()),\n                Matcher::UrlEncoded(\"side\".into(), \"BUY\".into()),\n            ]))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_price(\"0x123\", Side::BUY).await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let response = result.unwrap();\n        assert_eq!(response.price, Decimal::from_str(\"0.76\").unwrap());\n    }\n\n    #[tokio::test]\n    async fn test_get_tick_size_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"minimum_tick_size\": \"0.01\"\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/tick-size\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_tick_size(\"0x123\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let tick_size = result.unwrap();\n        assert_eq!(tick_size, Decimal::from_str(\"0.01\").unwrap());\n    }\n\n    #[tokio::test]\n    async fn test_get_neg_risk_success() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"neg_risk\": false\n        }\"#;\n\n        let mock = server\n            .mock(\"GET\", \"/neg-risk\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"0x123\".into()))\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_neg_risk(\"0x123\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let neg_risk = result.unwrap();\n        assert!(!neg_risk);\n    }\n\n    #[tokio::test]\n    async fn test_api_error_handling() {\n        let mut server = Server::new_async().await;\n        \n        let mock = server\n            .mock(\"GET\", \"/book\")\n            .match_query(Matcher::UrlEncoded(\"token_id\".into(), \"invalid_token\".into()))\n            .with_status(404)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(r#\"{\"error\": \"Market not found\"}\"#)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let result = client.get_order_book(\"invalid_token\").await;\n        \n        mock.assert_async().await;\n        assert!(result.is_err());\n        \n        let error = result.unwrap_err();\n        // The error should be either Network or Api error\n        assert!(matches!(error, PolyfillError::Network { .. }) || matches!(error, PolyfillError::Api { .. }));\n    }\n\n    #[tokio::test]\n    async fn test_network_error_handling() {\n        // Test with invalid URL to simulate network error\n        let client = create_test_client(\"http://invalid-host-that-does-not-exist.com\");\n        let result = client.get_order_book(\"0x123\").await;\n        \n        assert!(result.is_err());\n        let error = result.unwrap_err();\n        assert!(matches!(error, PolyfillError::Network { .. }));\n    }\n\n    #[test]\n    fn test_client_url_validation() {\n        let client = create_test_client(\"https://test.example.com\");\n        assert_eq!(client.base_url, \"https://test.example.com\");\n        \n        let client2 = create_test_client(\"http://localhost:8080\");\n        assert_eq!(client2.base_url, \"http://localhost:8080\");\n    }\n\n    #[tokio::test]\n    async fn test_get_midpoints_batch() {\n        let mut server = Server::new_async().await;\n        let mock_response = r#\"{\n            \"0x123\": \"0.755\",\n            \"0x456\": \"0.623\"\n        }\"#;\n\n        let mock = server\n            .mock(\"POST\", \"/midpoints\")\n            .with_header(\"content-type\", \"application/json\")\n            .with_status(200)\n            .with_header(\"content-type\", \"application/json\")\n            .with_body(mock_response)\n            .create_async()\n            .await;\n\n        let client = create_test_client(\u0026server.url());\n        let token_ids = vec![\"0x123\".to_string(), \"0x456\".to_string()];\n        let result = client.get_midpoints(\u0026token_ids).await;\n        \n        mock.assert_async().await;\n        assert!(result.is_ok());\n        let midpoints = result.unwrap();\n        assert_eq!(midpoints.len(), 2);\n        assert_eq!(midpoints.get(\"0x123\").unwrap(), \u0026Decimal::from_str(\"0.755\").unwrap());\n        assert_eq!(midpoints.get(\"0x456\").unwrap(), \u0026Decimal::from_str(\"0.623\").unwrap());\n    }\n\n    #[test]\n    fn test_client_configuration() {\n        let client = create_test_client(\"https://test.example.com\");\n        \n        // Test initial state\n        assert!(client.signer.is_none());\n        assert!(client.api_creds.is_none());\n        \n        // Test with auth\n        let auth_client = create_test_client_with_auth(\"https://test.example.com\");\n        assert!(auth_client.signer.is_some());\n        assert_eq!(auth_client.chain_id, 137);\n    }\n} 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Contract configuration for Polymarket\n//!\n//! 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   return Some(ContractConfig {\n                    exchange: \"0xd91E80cF2E7be2e162c6513ceD06f1dD0dA35296\".to_owned(),\n                    collateral: \"0x9c4e1703476e875070ee25b56a58b008cfb8fa78\".to_owned(),\n                    conditional_tokens: \"0x69308FB512518e39F9b16112fA8d994F4e2Bf8bB\".to_owned(),\n                });\n            }\n            None\n        }\n        false =\u003e {\n            if chain_id == 137 {\n                return Some(ContractConfig {\n                    exchange: \"0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E\".to_owned(),\n                    collateral: \"0x2791Bca1f2de4661ED88A30C99a7a9449Aa84174\".to_owned(),\n                    conditional_tokens: \"0x4D97DCd97eC945f40cF65F87097ACe5EA0476045\".to_owned(),\n                });\n            } else if chain_id == 80002 {\n                return Some(ContractConfig {\n                    exchange: \"0xdFE02Eb6733538f8Ea35D585af8DE5958AD99E40\".to_owned(),\n                    collateral: \"0x9c4e1703476e875070ee25b56a58b008cfb8fa78\".to_owned(),\n                    conditional_tokens: \"0x69308FB512518e39F9b16112fA8d994F4e2Bf8bB\".to_owned(),\n                });\n            }\n            None\n        }\n    }\n}\n\n/// Network configuration\n#[derive(Debug, Clone)]\npub struct NetworkConfig {\n    pub chain_id: u64,\n    pub name: String,\n    pub rpc_url: String,\n    pub block_explorer: String,\n    pub contracts: HashMap\u003cString, ContractConfig\u003e,\n}\n\nimpl NetworkConfig {\n    /// Get configuration for Polygon mainnet\n    pub fn polygon_mainnet() -\u003e Self {\n        let mut contracts = HashMap::new();\n        contracts.insert(\"standard\".to_string(), get_contract_config(137, false).unwrap());\n        contracts.insert(\"neg_risk\".to_string(), get_contract_config(137, true).unwrap());\n\n        Self {\n            chain_id: 137,\n            name: \"Polygon Mainnet\".to_string(),\n            rpc_url: \"https://polygon-rpc.com\".to_string(),\n            block_explorer: \"https://polygonscan.com\".to_string(),\n            contracts,\n        }\n    }\n\n    /// Get configuration for Polygon Mumbai testnet\n    pub fn polygon_mumbai() -\u003e Self {\n        let mut contracts = HashMap::new();\n        contracts.insert(\"standard\".to_string(), get_contract_config(80002, false).unwrap());\n        contracts.insert(\"neg_risk\".to_string(), get_contract_config(80002, true).unwrap());\n\n        Self {\n            chain_id: 80002,\n            name: \"Polygon Mumbai\".to_string(),\n            rpc_url: \"https://rpc-mumbai.maticvigil.com\".to_string(),\n            block_explorer: \"https://mumbai.polygonscan.com\".to_string(),\n            contracts,\n        }\n    }\n\n    /// Get contract configuration for this network\n    pub fn get_contract(\u0026self, risk_type: \u0026str) -\u003e Option\u003c\u0026ContractConfig\u003e {\n        self.contracts.get(risk_type)\n    }\n}\n\n/// Global configuration\n#[derive(Debug, Clone)]\npub struct GlobalConfig {\n    pub networks: HashMap\u003cu64, NetworkConfig\u003e,\n    pub default_network: u64,\n}\n\nimpl GlobalConfig {\n    /// Create default configuration\n    pub fn new() -\u003e Self {\n        let mut networks = HashMap::new();\n        networks.insert(137, NetworkConfig::polygon_mainnet());\n        networks.insert(80002, NetworkConfig::polygon_mumbai());\n\n        Self {\n            networks,\n            default_network: 137,\n        }\n    }\n\n    /// Get network configuration\n    pub fn get_network(\u0026self, chain_id: u64) -\u003e Option\u003c\u0026NetworkConfig\u003e {\n        self.networks.get(\u0026chain_id)\n    }\n\n    /// Get default network\n    pub fn default_network(\u0026self) -\u003e Option\u003c\u0026NetworkConfig\u003e {\n        self.networks.get(\u0026self.default_network)\n    }\n}\n\nimpl Default for GlobalConfig {\n    fn default() -\u003e Self {\n        Self::new()\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_contract_config() {\n        let config = get_contract_config(137, false);\n        assert!(config.is_some());\n        \n        let config = config.unwrap();\n        assert!(!config.exchange.is_empty());\n        assert!(!config.collateral.is_empty());\n        assert!(!config.conditional_tokens.is_empty());\n    }\n\n    #[test]\n    fn test_network_config() {\n        let polygon = NetworkConfig::polygon_mainnet();\n        assert_eq!(polygon.chain_id, 137);\n        assert_eq!(polygon.name, \"Polygon Mainnet\");\n        \n        let contract = polygon.get_contract(\"standard\");\n        assert!(contract.is_some());\n    }\n\n    #[test]\n    fn test_global_config() {\n        let config = GlobalConfig::new();\n        assert_eq!(config.default_network, 137);\n        \n        let network = config.get_network(137);\n        assert!(network.is_some());\n    }\n} 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This module provides high-performance decoding functions for various\n//! data formats used in trading environments.\n\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::*;\nuse alloy_primitives::{Address, U256};\nuse chrono::{DateTime, Utc};\nuse rust_decimal::Decimal;\nuse serde::{Deserialize, Deserializer};\nuse serde_json::Value;\nuse std::str::FromStr;\n\n/// Fast string to number deserializers\npub mod deserializers {\n    use super::*;\n    use std::fmt::Display;\n\n    /// Deserialize number from string or number\n    pub fn number_from_string\u003c'de, T, D\u003e(deserializer: D) -\u003e std::result::Result\u003cT, D::Error\u003e\n    where\n        D: Deserializer\u003c'de\u003e,\n        T: FromStr + serde::Deserialize\u003c'de\u003e + Clone,\n        \u003cT as FromStr\u003e::Err: Display,\n    {\n        let value = serde_json::Value::deserialize(deserializer)?;\n        match value {\n            serde_json::Value::Number(n) =\u003e {\n                if let Some(v) = n.as_u64() {\n                    T::deserialize(serde_json::Value::Number(serde_json::Number::from(v)))\n                        .map_err(|_| serde::de::Error::custom(\"Failed to deserialize number\"))\n                } else if let Some(v) = n.as_f64() {\n                    T::deserialize(serde_json::Value::Number(serde_json::Number::from_f64(v).unwrap()))\n                        .map_err(|_| serde::de::Error::custom(\"Failed to deserialize number\"))\n                } else {\n                    Err(serde::de::Error::custom(\"Invalid number format\"))\n                }\n            }\n            serde_json::Value::String(s) =\u003e {\n                s.parse::\u003cT\u003e().map_err(serde::de::Error::custom)\n            }\n            _ =\u003e Err(serde::de::Error::custom(\"Expected number or string\")),\n        }\n    }\n\n    /// Deserialize optional number from string\n    pub fn optional_number_from_string\u003c'de, T, D\u003e(\n        deserializer: D,\n    ) -\u003e std::result::Result\u003cOption\u003cT\u003e, D::Error\u003e\n    where\n        D: Deserializer\u003c'de\u003e,\n        T: FromStr + serde::Deserialize\u003c'de\u003e + Clone,\n        \u003cT as FromStr\u003e::Err: Display,\n    {\n        let value = serde_json::Value::deserialize(deserializer)?;\n        match value {\n            serde_json::Value::Null =\u003e Ok(None),\n            serde_json::Value::Number(n) =\u003e {\n                if let Some(v) = n.as_u64() {\n                    T::deserialize(serde_json::Value::Number(serde_json::Number::from(v)))\n                        .map(Some)\n                        .map_err(|_| serde::de::Error::custom(\"Failed to deserialize number\"))\n                } else if let Some(v) = n.as_f64() {\n                    T::deserialize(serde_json::Value::Number(serde_json::Number::from_f64(v).unwrap()))\n                        .map(Some)\n                        .map_err(|_| serde::de::Error::custom(\"Failed to deserialize number\"))\n                } else {\n                    Err(serde::de::Error::custom(\"Invalid number format\"))\n                }\n            }\n            serde_json::Value::String(s) =\u003e {\n                if s.is_empty() {\n                    Ok(None)\n                } else {\n                    s.parse::\u003cT\u003e()\n                        .map(Some)\n                        .map_err(serde::de::Error::custom)\n                }\n            }\n            _ =\u003e Err(serde::de::Error::custom(\"Expected number, string, or null\")),\n        }\n    }\n\n    /// Deserialize DateTime from Unix timestamp\n    pub fn datetime_from_timestamp\u003c'de, D\u003e(deserializer: D) -\u003e std::result::Result\u003cDateTime\u003cUtc\u003e, D::Error\u003e\n    where\n        D: Deserializer\u003c'de\u003e,\n    {\n        let timestamp = number_from_string::\u003cu64, D\u003e(deserializer)?;\n        DateTime::from_timestamp(timestamp as i64, 0)\n            .ok_or_else(|| serde::de::Error::custom(\"Invalid timestamp\"))\n    }\n\n    /// Deserialize optional DateTime from Unix timestamp\n    pub fn optional_datetime_from_timestamp\u003c'de, D\u003e(\n        deserializer: D,\n    ) -\u003e std::result::Result\u003cOption\u003cDateTime\u003cUtc\u003e\u003e, D::Error\u003e\n    where\n        D: Deserializer\u003c'de\u003e,\n    {\n        match optional_number_from_string::\u003cu64, D\u003e(deserializer)? {\n            Some(timestamp) =\u003e DateTime::from_timestamp(timestamp as i64, 0)\n                .map(Some)\n                .ok_or_else(|| serde::de::Error::custom(\"Invalid timestamp\")),\n            None =\u003e Ok(None),\n        }\n    }\n}\n\n/// Raw API response types for efficient parsing\n#[derive(Debug, Deserialize)]\npub struct RawOrderBookResponse {\n    pub market: String,\n    pub asset_id: String,\n    pub hash: String,\n    #[serde(deserialize_with = \"deserializers::number_from_string\")]\n    pub timestamp: u64,\n    pub bids: Vec\u003cRawBookLevel\u003e,\n    pub asks: Vec\u003cRawBookLevel\u003e,\n}\n\n#[derive(Debug, Deserialize)]\npub struct RawBookLevel {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct RawOrderResponse {\n    pub id: String,\n    pub status: String,\n    pub market: String,\n    pub asset_id: String,\n    pub maker_address: String,\n    pub owner: String,\n    pub outcome: String,\n    #[serde(rename = \"type\")]\n    pub order_type: OrderType,\n    pub side: Side,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub original_size: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size_matched: Decimal,\n    #[serde(deserialize_with = \"deserializers::number_from_string\")]\n    pub expiration: u64,\n    #[serde(deserialize_with = \"deserializers::number_from_string\")]\n    pub created_at: u64,\n}\n\n#[derive(Debug, Deserialize)]\npub struct RawTradeResponse {\n    pub id: String,\n    pub market: String,\n    pub asset_id: String,\n    pub side: Side,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size: Decimal,\n    pub maker_address: String,\n    pub taker_address: String,\n    #[serde(deserialize_with = \"deserializers::number_from_string\")]\n    pub timestamp: u64,\n}\n\n#[derive(Debug, Deserialize)]\npub struct RawMarketResponse {\n    pub condition_id: String,\n    pub tokens: [RawToken; 2],\n    pub active: bool,\n    pub closed: bool,\n    pub question: String,\n    pub description: String,\n    pub category: Option\u003cString\u003e,\n    pub end_date_iso: Option\u003cString\u003e,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub minimum_order_size: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub minimum_tick_size: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct RawToken {\n    pub token_id: String,\n    pub outcome: String,\n}\n\n/// Decoder implementations for converting raw responses to client types\npub trait Decoder\u003cT\u003e {\n    fn decode(\u0026self) -\u003e Result\u003cT\u003e;\n}\n\nimpl Decoder\u003cOrderBook\u003e for RawOrderBookResponse {\n    fn decode(\u0026self) -\u003e Result\u003cOrderBook\u003e {\n        let timestamp = chrono::DateTime::from_timestamp(self.timestamp as i64, 0)\n            .ok_or_else(|| PolyfillError::parse(\"Invalid timestamp\".to_string(), None))?;\n\n        let bids = self\n            .bids\n            .iter()\n            .map(|level| BookLevel {\n                price: level.price,\n                size: level.size,\n            })\n            .collect();\n\n        let asks = self\n            .asks\n            .iter()\n            .map(|level| BookLevel {\n                price: level.price,\n                size: level.size,\n            })\n            .collect();\n\n        Ok(OrderBook {\n            token_id: self.asset_id.clone(),\n            timestamp,\n            bids,\n            asks,\n            sequence: 0, // TODO: Get from response if available\n        })\n    }\n}\n\nimpl Decoder\u003cOrder\u003e for RawOrderResponse {\n    fn decode(\u0026self) -\u003e Result\u003cOrder\u003e {\n        let status = match self.status.as_str() {\n            \"LIVE\" =\u003e OrderStatus::Live,\n            \"CANCELLED\" =\u003e OrderStatus::Cancelled,\n            \"FILLED\" =\u003e OrderStatus::Filled,\n            \"PARTIAL\" =\u003e OrderStatus::Partial,\n            \"EXPIRED\" =\u003e OrderStatus::Expired,\n            _ =\u003e return Err(PolyfillError::parse(\n                format!(\"Unknown order status: {}\", self.status),\n                None,\n            )),\n        };\n\n        let created_at = chrono::DateTime::from_timestamp(self.created_at as i64, 0)\n            .ok_or_else(|| PolyfillError::parse(\"Invalid created_at timestamp\".to_string(), None))?;\n\n        let expiration = if self.expiration \u003e 0 {\n            Some(chrono::DateTime::from_timestamp(self.expiration as i64, 0)\n                .ok_or_else(|| PolyfillError::parse(\"Invalid expiration timestamp\".to_string(), None))?)\n        } else {\n            None\n        };\n\n        Ok(Order {\n            id: self.id.clone(),\n            token_id: self.asset_id.clone(),\n            side: self.side,\n            price: self.price,\n            original_size: self.original_size,\n            filled_size: self.size_matched,\n            remaining_size: self.original_size - self.size_matched,\n            status,\n            order_type: self.order_type,\n            created_at,\n            updated_at: created_at, // Use same as created for now\n            expiration,\n            client_id: None,\n        })\n    }\n}\n\nimpl Decoder\u003cFillEvent\u003e for RawTradeResponse {\n    fn decode(\u0026self) -\u003e Result\u003cFillEvent\u003e {\n        let timestamp = chrono::DateTime::from_timestamp(self.timestamp as i64, 0)\n            .ok_or_else(|| PolyfillError::parse(\"Invalid trade timestamp\".to_string(), None))?;\n\n        let maker_address = Address::from_str(\u0026self.maker_address)\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid maker address: {}\", e), None))?;\n\n        let taker_address = Address::from_str(\u0026self.taker_address)\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid taker address: {}\", e), None))?;\n\n        Ok(FillEvent {\n            id: self.id.clone(),\n            order_id: \"\".to_string(), // TODO: Get from response if available\n            token_id: self.asset_id.clone(),\n            side: self.side,\n            price: self.price,\n            size: self.size,\n            timestamp,\n            maker_address,\n            taker_address,\n            fee: Decimal::ZERO, // TODO: Calculate or get from response\n        })\n    }\n}\n\nimpl Decoder\u003cMarket\u003e for RawMarketResponse {\n    fn decode(\u0026self) -\u003e Result\u003cMarket\u003e {\n        let tokens = [\n            Token {\n                token_id: self.tokens[0].token_id.clone(),\n                outcome: self.tokens[0].outcome.clone(),\n            },\n            Token {\n                token_id: self.tokens[1].token_id.clone(),\n                outcome: self.tokens[1].outcome.clone(),\n            },\n        ];\n\n        Ok(Market {\n            condition_id: self.condition_id.clone(),\n            tokens,\n            rewards: crate::types::Rewards {\n                rates: None,\n                min_size: Decimal::ZERO,\n                max_spread: Decimal::ONE,\n                event_start_date: None,\n                event_end_date: None,\n                in_game_multiplier: None,\n                reward_epoch: None,\n            },\n            min_incentive_size: None,\n            max_incentive_spread: None,\n            active: self.active,\n            closed: self.closed,\n            question_id: self.condition_id.clone(), // Use condition_id as fallback\n            minimum_order_size: self.minimum_order_size,\n            minimum_tick_size: self.minimum_tick_size,\n            description: self.description.clone(),\n            category: self.category.clone(),\n            end_date_iso: self.end_date_iso.clone(),\n            game_start_time: None,\n            question: self.question.clone(),\n            market_slug: format!(\"market-{}\", self.condition_id), // Generate a slug\n            seconds_delay: Decimal::ZERO,\n            icon: String::new(),\n            fpmm: String::new(),\n        })\n    }\n}\n\n/// WebSocket message parsing\npub fn parse_stream_message(raw: \u0026str) -\u003e Result\u003cStreamMessage\u003e {\n    let value: Value = serde_json::from_str(raw)?;\n    \n    let msg_type = value[\"type\"]\n        .as_str()\n        .ok_or_else(|| PolyfillError::parse(\"Missing message type\".to_string(), None))?;\n\n    match msg_type {\n        \"book_update\" =\u003e {\n            let data = value[\"data\"].clone();\n            let delta: OrderDelta = serde_json::from_value(data)?;\n            Ok(StreamMessage::BookUpdate { data: delta })\n        }\n        \"trade\" =\u003e {\n            let data = value[\"data\"].clone();\n            let raw_trade: RawTradeResponse = serde_json::from_value(data)?;\n            let fill = raw_trade.decode()?;\n            Ok(StreamMessage::Trade { data: fill })\n        }\n        \"order_update\" =\u003e {\n            let data = value[\"data\"].clone();\n            let raw_order: RawOrderResponse = serde_json::from_value(data)?;\n            let order = raw_order.decode()?;\n            Ok(StreamMessage::OrderUpdate { data: order })\n        }\n        \"heartbeat\" =\u003e {\n            let timestamp = value[\"timestamp\"]\n                .as_str()\n                .and_then(|s| chrono::DateTime::parse_from_rfc3339(s).ok())\n                .map(|dt| dt.with_timezone(\u0026Utc))\n                .unwrap_or_else(|| Utc::now());\n            Ok(StreamMessage::Heartbeat { timestamp })\n        }\n        _ =\u003e Err(PolyfillError::parse(\n            format!(\"Unknown message type: {}\", msg_type),\n            None,\n        )),\n    }\n}\n\n/// Batch parsing utilities for high-throughput scenarios\npub struct BatchDecoder {\n    buffer: Vec\u003cu8\u003e,\n}\n\nimpl BatchDecoder {\n    pub fn new() -\u003e Self {\n        Self {\n            buffer: Vec::with_capacity(8192),\n        }\n    }\n\n    /// Parse multiple JSON objects from a byte stream\n    pub fn parse_json_stream\u003cT\u003e(\u0026mut self, data: \u0026[u8]) -\u003e Result\u003cVec\u003cT\u003e\u003e\n    where\n        T: for\u003c'de\u003e serde::Deserialize\u003c'de\u003e,\n    {\n        self.buffer.extend_from_slice(data);\n        let mut results = Vec::new();\n        let mut start = 0;\n\n        while let Some(end) = self.find_json_boundary(start) {\n            let json_slice = \u0026self.buffer[start..end];\n            if let Ok(obj) = serde_json::from_slice::\u003cT\u003e(json_slice) {\n                results.push(obj);\n            }\n            start = end;\n        }\n\n        // Keep remaining incomplete data\n        if start \u003e 0 {\n            self.buffer.drain(0..start);\n        }\n\n        Ok(results)\n    }\n\n    /// Find the end of a JSON object in the buffer\n    fn find_json_boundary(\u0026self, start: usize) -\u003e Option\u003cusize\u003e {\n        let mut depth = 0;\n        let mut in_string = false;\n        let mut escaped = false;\n\n        for (i, \u0026byte) in self.buffer[start..].iter().enumerate() {\n            if escaped {\n                escaped = false;\n                continue;\n            }\n\n            match byte {\n                b'\\\\' if in_string =\u003e escaped = true,\n                b'\"' =\u003e in_string = !in_string,\n                b'{' if !in_string =\u003e depth += 1,\n                b'}' if !in_string =\u003e {\n                    depth -= 1;\n                    if depth == 0 {\n                        return Some(start + i + 1);\n                    }\n                }\n                _ =\u003e {}\n            }\n        }\n\n        None\n    }\n}\n\nimpl Default for BatchDecoder {\n    fn default() -\u003e Self {\n        Self::new()\n    }\n}\n\n/// Optimized parsers for common data types\npub mod fast_parse {\n    use super::*;\n\n    /// Fast decimal parsing for prices\n    #[inline]\n    pub fn parse_decimal(s: \u0026str) -\u003e Result\u003cDecimal\u003e {\n        Decimal::from_str(s)\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid decimal: {}\", e), None))\n    }\n\n    /// Fast address parsing\n    #[inline]\n    pub fn parse_address(s: \u0026str) -\u003e Result\u003cAddress\u003e {\n        Address::from_str(s)\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid address: {}\", e), None))\n    }\n\n    /// Fast U256 parsing\n    #[inline]\n    pub fn parse_u256(s: \u0026str) -\u003e Result\u003cU256\u003e {\n        U256::from_str_radix(s, 10)\n            .map_err(|e| PolyfillError::parse(format!(\"Invalid U256: {}\", e), None))\n    }\n\n    /// Parse Side enum\n    #[inline]\n    pub fn parse_side(s: \u0026str) -\u003e Result\u003cSide\u003e {\n        match s.to_uppercase().as_str() {\n            \"BUY\" =\u003e Ok(Side::BUY),\n            \"SELL\" =\u003e Ok(Side::SELL),\n            _ =\u003e Err(PolyfillError::parse(format!(\"Invalid side: {}\", s), None)),\n        }\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_parse_decimal() {\n        let result = fast_parse::parse_decimal(\"123.456\").unwrap();\n        assert_eq!(result, Decimal::from_str(\"123.456\").unwrap());\n    }\n\n    #[test]\n    fn test_parse_side() {\n        assert_eq!(fast_parse::parse_side(\"BUY\").unwrap(), Side::BUY);\n        assert_eq!(fast_parse::parse_side(\"sell\").unwrap(), Side::SELL);\n        assert!(fast_parse::parse_side(\"invalid\").is_err());\n    }\n\n    #[test]\n    fn test_batch_decoder() {\n        let mut decoder = BatchDecoder::new();\n        let data = r#\"{\"test\":1}{\"test\":2}\"#.as_bytes();\n        \n        let results: Vec\u003cserde_json::Value\u003e = decoder.parse_json_stream(data).unwrap();\n        assert_eq!(results.len(), 2);\n    }\n} 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WebSocket/streaming errors\n    #[error(\"Stream error: {message}\")]\n    Stream { \n        message: String,\n        kind: StreamErrorKind,\n    },\n\n    /// Validation errors\n    #[error(\"Validation error: {message}\")]\n    Validation { \n        message: String,\n        field: Option\u003cString\u003e,\n    },\n\n    /// Internal errors (bugs)\n    #[error(\"Internal error: {message}\")]\n    Internal { \n        message: String,\n        #[source]\n        source: Option\u003cBox\u003cdyn std::error::Error + Send + Sync\u003e\u003e,\n    },\n}\n\n/// Authentication error subcategories\n#[derive(Debug, Clone, PartialEq)]\npub enum AuthErrorKind {\n    InvalidCredentials,\n    ExpiredCredentials,\n    InsufficientPermissions,\n    SignatureError,\n    NonceError,\n}\n\n/// Order error subcategories\n#[derive(Debug, Clone, PartialEq)]\npub enum OrderErrorKind {\n    InvalidPrice,\n    InvalidSize,\n    InsufficientBalance,\n    MarketClosed,\n    DuplicateOrder,\n    OrderNotFound,\n    CancellationFailed,\n    ExecutionFailed,\n    SizeConstraint,\n    PriceConstraint,\n}\n\n/// Market data error subcategories\n#[derive(Debug, Clone, PartialEq)]\npub enum MarketDataErrorKind {\n    TokenNotFound,\n    MarketNotFound,\n    StaleData,\n    IncompleteData,\n    BookUnavailable,\n}\n\n/// Streaming error subcategories\n#[derive(Debug, Clone, PartialEq)]\npub enum StreamErrorKind {\n    ConnectionFailed,\n    ConnectionLost,\n    SubscriptionFailed,\n    MessageCorrupted,\n    Reconnecting,\n}\n\nimpl PolyfillError {\n    /// Check if this error is retryable\n    pub fn is_retryable(\u0026self) -\u003e bool {\n        match self {\n            PolyfillError::Network { .. } =\u003e true,\n            PolyfillError::Api { status, .. } =\u003e {\n                // 5xx errors are typically retryable\n                *status \u003e= 500 \u0026\u0026 *status \u003c 600\n            },\n            PolyfillError::Timeout { .. } =\u003e true,\n            PolyfillError::RateLimit { .. } =\u003e true,\n            PolyfillError::Stream { kind, .. } =\u003e {\n                matches!(kind, StreamErrorKind::ConnectionLost | StreamErrorKind::Reconnecting)\n            },\n            _ =\u003e false,\n        }\n    }\n\n    /// Get suggested retry delay\n    pub fn retry_delay(\u0026self) -\u003e Option\u003cDuration\u003e {\n        match self {\n            PolyfillError::Network { .. } =\u003e Some(Duration::from_millis(100)),\n            PolyfillError::Api { status, .. } =\u003e {\n                if *status \u003e= 500 {\n                    Some(Duration::from_millis(500))\n                } else {\n                    None\n                }\n            },\n            PolyfillError::Timeout { .. } =\u003e Some(Duration::from_millis(50)),\n            PolyfillError::RateLimit { retry_after, .. } =\u003e {\n                retry_after.or(Some(Duration::from_secs(1)))\n            },\n            PolyfillError::Stream { .. } 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=\u003e \"market_data\",\n            PolyfillError::Config { .. } =\u003e \"config\",\n            PolyfillError::Parse { .. } =\u003e \"parse\",\n            PolyfillError::Timeout { .. } =\u003e \"timeout\",\n            PolyfillError::RateLimit { .. } =\u003e \"rate_limit\",\n            PolyfillError::Stream { .. } =\u003e \"stream\",\n            PolyfillError::Validation { .. } =\u003e \"validation\",\n            PolyfillError::Internal { .. } =\u003e \"internal\",\n        }\n    }\n}\n\n// Convenience constructors\nimpl PolyfillError {\n    pub fn network\u003cE: std::error::Error + Send + Sync + 'static\u003e(\n        message: impl Into\u003cString\u003e,\n        source: E,\n    ) -\u003e Self {\n        Self::Network {\n            message: message.into(),\n            source: Some(Box::new(source)),\n        }\n    }\n\n    pub fn api(status: u16, message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Api {\n            status,\n            message: message.into(),\n            error_code: None,\n        }\n    }\n\n    pub fn auth(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Auth {\n            message: message.into(),\n            kind: AuthErrorKind::SignatureError,\n        }\n    }\n\n    pub fn crypto(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Auth {\n            message: message.into(),\n            kind: AuthErrorKind::SignatureError,\n        }\n    }\n\n    pub fn order(message: impl Into\u003cString\u003e, kind: OrderErrorKind) -\u003e Self {\n        Self::Order {\n            message: message.into(),\n            kind,\n        }\n    }\n\n    pub fn market_data(message: impl Into\u003cString\u003e, kind: MarketDataErrorKind) -\u003e Self {\n        Self::MarketData {\n            message: message.into(),\n            kind,\n        }\n    }\n\n    pub fn config(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Config {\n            message: message.into(),\n        }\n    }\n\n    pub fn parse(message: impl Into\u003cString\u003e, source: Option\u003cBox\u003cdyn std::error::Error + Send + Sync\u003e\u003e) -\u003e Self {\n        Self::Parse {\n            message: message.into(),\n            source,\n        }\n    }\n\n    pub fn timeout(duration: Duration, operation: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Timeout {\n            duration,\n            operation: operation.into(),\n        }\n    }\n\n    pub fn rate_limit(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::RateLimit {\n            message: message.into(),\n            retry_after: None,\n        }\n    }\n\n    pub fn stream(message: impl Into\u003cString\u003e, kind: StreamErrorKind) -\u003e Self {\n        Self::Stream {\n            message: message.into(),\n            kind,\n        }\n    }\n\n    pub fn validation(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Validation {\n            message: message.into(),\n            field: None,\n        }\n    }\n\n    pub fn internal\u003cE: std::error::Error + Send + Sync + 'static\u003e(\n        message: impl Into\u003cString\u003e,\n        source: E,\n    ) -\u003e Self {\n        Self::Internal {\n            message: message.into(),\n            source: Some(Box::new(source)),\n        }\n    }\n\n    pub fn internal_simple(message: impl Into\u003cString\u003e) -\u003e Self {\n        Self::Internal {\n            message: message.into(),\n            source: None,\n        }\n    }\n}\n\n// Implement From for common external error types\nimpl From\u003creqwest::Error\u003e for PolyfillError {\n    fn from(err: reqwest::Error) -\u003e Self {\n        if err.is_timeout() {\n            PolyfillError::Timeout {\n                duration: Duration::from_secs(30), // default timeout\n                operation: \"HTTP request\".to_string(),\n            }\n        } else if err.is_connect() || err.is_request() {\n            PolyfillError::network(\"HTTP request failed\", err)\n        } else {\n            PolyfillError::internal(\"Unexpected reqwest error\", err)\n        }\n    }\n}\n\nimpl From\u003cserde_json::Error\u003e for PolyfillError {\n    fn from(err: serde_json::Error) -\u003e Self {\n        PolyfillError::Parse {\n            message: format!(\"JSON parsing failed: {}\", err),\n            source: Some(Box::new(err)),\n        }\n    }\n}\n\nimpl From\u003curl::ParseError\u003e for PolyfillError {\n    fn from(err: url::ParseError) -\u003e Self {\n        PolyfillError::config(format!(\"Invalid URL: {}\", err))\n    }\n}\n\n#[cfg(feature = \"stream\")]\nimpl From\u003ctokio_tungstenite::tungstenite::Error\u003e for PolyfillError {\n    fn from(err: tokio_tungstenite::tungstenite::Error) -\u003e Self {\n        use tokio_tungstenite::tungstenite::Error as WsError;\n        \n        let kind = match \u0026err {\n            WsError::ConnectionClosed | WsError::AlreadyClosed =\u003e StreamErrorKind::ConnectionLost,\n            WsError::Io(_) =\u003e StreamErrorKind::ConnectionFailed,\n            WsError::Protocol(_) =\u003e StreamErrorKind::MessageCorrupted,\n            _ =\u003e StreamErrorKind::ConnectionFailed,\n        };\n\n        PolyfillError::stream(format!(\"WebSocket error: {}\", err), kind)\n    }\n}\n\n// Manual Clone implementation since Box\u003cdyn Error\u003e doesn't implement Clone\nimpl Clone for PolyfillError {\n    fn clone(\u0026self) -\u003e Self {\n        match self {\n            PolyfillError::Network { message, source: _ } =\u003e {\n                PolyfillError::Network { \n                    message: message.clone(), \n                    source: None \n                }\n            }\n            PolyfillError::Api { status, message, error_code } =\u003e {\n                PolyfillError::Api { \n                    status: *status, \n                    message: message.clone(), \n                    error_code: error_code.clone() \n                }\n            }\n            PolyfillError::Auth { message, kind } =\u003e {\n                PolyfillError::Auth { \n                    message: message.clone(), \n                    kind: kind.clone() \n                }\n            }\n            PolyfillError::Order { message, kind } =\u003e {\n                PolyfillError::Order { \n                    message: message.clone(), \n                    kind: kind.clone() \n                }\n            }\n            PolyfillError::MarketData { message, kind } =\u003e {\n                PolyfillError::MarketData { \n                    message: message.clone(), \n                    kind: kind.clone() \n                }\n            }\n            PolyfillError::Config { message } =\u003e {\n                PolyfillError::Config { \n                    message: message.clone() \n                }\n            }\n            PolyfillError::Parse { message, source: _ } =\u003e {\n                PolyfillError::Parse { \n                    message: message.clone(), \n                    source: None \n                }\n            }\n            PolyfillError::Timeout { duration, operation } =\u003e {\n                PolyfillError::Timeout { \n                    duration: *duration, \n                    operation: operation.clone() \n                }\n            }\n            PolyfillError::RateLimit { message, retry_after } =\u003e {\n                PolyfillError::RateLimit { \n                    message: message.clone(), \n                    retry_after: *retry_after \n                }\n            }\n            PolyfillError::Stream { message, kind } =\u003e {\n                PolyfillError::Stream { \n                    message: message.clone(), \n                    kind: kind.clone() \n                }\n            }\n            PolyfillError::Validation { message, field } =\u003e {\n                PolyfillError::Validation { \n                    message: message.clone(), \n                    field: field.clone() \n                }\n            }\n            PolyfillError::Internal { message, source: _ } =\u003e {\n                PolyfillError::Internal { \n                    message: message.clone(), \n                    source: None \n                }\n            }\n        }\n    }\n}\n\n/// Result type alias for convenience\npub type Result\u003cT\u003e = std::result::Result\u003cT, PolyfillError\u003e; 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Trade execution and fill handling for Polymarket client\n//!\n//! This module provides high-performance trade execution logic and\n//! fill event processing for latency-sensitive trading environments.\n\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::*;\nuse crate::utils::math;\nuse alloy_primitives::Address;\nuse chrono::{DateTime, Utc};\nuse rust_decimal::Decimal;\nuse std::collections::HashMap;\nuse tracing::{debug, info, warn};\n\n/// Fill execution result\n#[derive(Debug, Clone)]\npub struct FillResult {\n    pub order_id: String,\n    pub fills: Vec\u003cFillEvent\u003e,\n    pub total_size: Decimal,\n    pub average_price: Decimal,\n    pub total_cost: Decimal,\n    pub fees: Decimal,\n    pub status: FillStatus,\n    pub timestamp: DateTime\u003cUtc\u003e,\n}\n\n/// Fill execution status\n#[derive(Debug, Clone, PartialEq)]\npub enum FillStatus {\n    /// Order was fully filled\n    Filled,\n    /// Order was partially filled\n    Partial,\n    /// Order was not filled (insufficient liquidity)\n    Unfilled,\n    /// Order was rejected\n    Rejected,\n}\n\n/// Fill execution engine\n#[derive(Debug)]\npub struct FillEngine {\n    /// Minimum fill size for market orders\n    min_fill_size: Decimal,\n    /// Maximum slippage tolerance (as percentage)\n    max_slippage_pct: Decimal,\n    /// Fee rate in basis points\n    fee_rate_bps: u32,\n    /// Track fills by order ID\n    fills: HashMap\u003cString, Vec\u003cFillEvent\u003e\u003e,\n}\n\nimpl FillEngine {\n    /// Create a new fill engine\n    pub fn new(min_fill_size: Decimal, max_slippage_pct: Decimal, fee_rate_bps: u32) -\u003e Self {\n        Self {\n            min_fill_size,\n            max_slippage_pct,\n            fee_rate_bps,\n            fills: HashMap::new(),\n        }\n    }\n\n    /// Execute a market order against an order book\n    pub fn execute_market_order(\n        \u0026mut self,\n        order: \u0026MarketOrderRequest,\n        book: \u0026crate::book::OrderBook,\n    ) -\u003e Result\u003cFillResult\u003e {\n        let start_time = Utc::now();\n        \n        // Validate order\n        self.validate_market_order(order)?;\n\n        // Get available liquidity\n        let levels = match order.side {\n            Side::BUY =\u003e book.asks(None),\n            Side::SELL =\u003e book.bids(None),\n        };\n\n        if levels.is_empty() {\n            return Ok(FillResult {\n                order_id: order.client_id.clone().unwrap_or_else(|| \"market_order\".to_string()),\n                fills: Vec::new(),\n                total_size: Decimal::ZERO,\n                average_price: Decimal::ZERO,\n                total_cost: Decimal::ZERO,\n                fees: Decimal::ZERO,\n                status: FillStatus::Unfilled,\n                timestamp: start_time,\n            });\n        }\n\n        // Execute fills\n        let mut fills = Vec::new();\n        let mut remaining_size = order.amount;\n        let mut total_cost = Decimal::ZERO;\n        let mut total_size = Decimal::ZERO;\n\n        for level in levels {\n            if remaining_size.is_zero() {\n                break;\n            }\n\n            let fill_size = std::cmp::min(remaining_size, level.size);\n            let fill_cost = fill_size * level.price;\n            \n            // Calculate fee\n            let fee = self.calculate_fee(fill_cost);\n            \n            let fill = FillEvent {\n                id: uuid::Uuid::new_v4().to_string(),\n                order_id: order.client_id.clone().unwrap_or_else(|| \"market_order\".to_string()),\n                token_id: order.token_id.clone(),\n                side: order.side,\n                price: level.price,\n                size: fill_size,\n                timestamp: Utc::now(),\n                maker_address: Address::ZERO, // TODO: Get from level\n                taker_address: Address::ZERO, // TODO: Get from order\n                fee,\n            };\n\n            fills.push(fill);\n            total_cost += fill_cost;\n            total_size += fill_size;\n            remaining_size -= fill_size;\n        }\n\n        // Check slippage\n        if let Some(slippage) = self.calculate_slippage(order, \u0026fills) {\n            if slippage \u003e self.max_slippage_pct {\n                warn!(\n                    \"Slippage {}% exceeds maximum {}%\",\n                    slippage, self.max_slippage_pct\n                );\n                return Ok(FillResult {\n                    order_id: order.client_id.clone().unwrap_or_else(|| \"market_order\".to_string()),\n                    fills: Vec::new(),\n                    total_size: Decimal::ZERO,\n                    average_price: Decimal::ZERO,\n                    total_cost: Decimal::ZERO,\n                    fees: Decimal::ZERO,\n                    status: FillStatus::Rejected,\n                    timestamp: start_time,\n                });\n            }\n        }\n\n        // Determine status\n        let status = if remaining_size.is_zero() {\n            FillStatus::Filled\n        } else if total_size \u003e= self.min_fill_size {\n            FillStatus::Partial\n        } else {\n            FillStatus::Unfilled\n        };\n\n        let average_price = if total_size.is_zero() {\n            Decimal::ZERO\n        } else {\n            total_cost / total_size\n        };\n\n        let total_fees: Decimal = fills.iter().map(|f| f.fee).sum();\n\n        let result = FillResult {\n            order_id: order.client_id.clone().unwrap_or_else(|| \"market_order\".to_string()),\n            fills,\n            total_size,\n            average_price,\n            total_cost,\n            fees: total_fees,\n            status,\n            timestamp: start_time,\n        };\n\n        // Store fills for tracking\n        if !result.fills.is_empty() {\n            self.fills.insert(result.order_id.clone(), result.fills.clone());\n        }\n\n        info!(\n            \"Market order executed: {} {} @ {} (avg: {})\",\n            result.total_size,\n            order.side.as_str(),\n            order.amount,\n            result.average_price\n        );\n\n        Ok(result)\n    }\n\n    /// Execute a limit order (simulation)\n    pub fn execute_limit_order(\n        \u0026mut self,\n        order: \u0026OrderRequest,\n        book: \u0026crate::book::OrderBook,\n    ) -\u003e Result\u003cFillResult\u003e {\n        let start_time = Utc::now();\n\n        // Validate order\n        self.validate_limit_order(order)?;\n\n        // Check if order can be filled immediately\n        let can_fill = match order.side {\n            Side::BUY =\u003e {\n                if let Some(best_ask) = book.best_ask() {\n                    order.price \u003e= best_ask.price\n                } else {\n                    false\n                }\n            }\n            Side::SELL =\u003e {\n                if let Some(best_bid) = book.best_bid() {\n                    order.price \u003c= best_bid.price\n                } else {\n                    false\n                }\n            }\n        };\n\n        if !can_fill {\n            return Ok(FillResult {\n                order_id: order.client_id.clone().unwrap_or_else(|| \"limit_order\".to_string()),\n                fills: Vec::new(),\n                total_size: Decimal::ZERO,\n                average_price: Decimal::ZERO,\n                total_cost: Decimal::ZERO,\n                fees: Decimal::ZERO,\n                status: FillStatus::Unfilled,\n                timestamp: start_time,\n            });\n        }\n\n        // Simulate immediate fill\n        let fill = FillEvent {\n            id: uuid::Uuid::new_v4().to_string(),\n            order_id: order.client_id.clone().unwrap_or_else(|| \"limit_order\".to_string()),\n            token_id: order.token_id.clone(),\n            side: order.side,\n            price: order.price,\n            size: order.size,\n            timestamp: Utc::now(),\n            maker_address: Address::ZERO,\n            taker_address: Address::ZERO,\n            fee: self.calculate_fee(order.price * order.size),\n        };\n\n        let result = FillResult {\n            order_id: order.client_id.clone().unwrap_or_else(|| \"limit_order\".to_string()),\n            fills: vec![fill],\n            total_size: order.size,\n            average_price: order.price,\n            total_cost: order.price * order.size,\n            fees: self.calculate_fee(order.price * order.size),\n            status: FillStatus::Filled,\n            timestamp: start_time,\n        };\n\n        // Store fills for tracking\n        self.fills.insert(result.order_id.clone(), result.fills.clone());\n\n        info!(\n            \"Limit order executed: {} {} @ {}\",\n            result.total_size,\n            order.side.as_str(),\n            result.average_price\n        );\n\n        Ok(result)\n    }\n\n    /// Calculate slippage for a market order\n    fn calculate_slippage(\u0026self, order: \u0026MarketOrderRequest, fills: \u0026[FillEvent]) -\u003e Option\u003cDecimal\u003e {\n        if fills.is_empty() {\n            return None;\n        }\n\n        let total_cost: Decimal = fills.iter().map(|f| f.price * f.size).sum();\n        let total_size: Decimal = fills.iter().map(|f| f.size).sum();\n        let average_price = total_cost / total_size;\n\n        // Get reference price (best bid/ask)\n        let reference_price = match order.side {\n            Side::BUY =\u003e fills.first()?.price, // Best ask\n            Side::SELL =\u003e fills.first()?.price, // Best bid\n        };\n\n        Some(math::calculate_slippage(reference_price, average_price, order.side))\n    }\n\n    /// Calculate fee for a trade\n    fn calculate_fee(\u0026self, notional: Decimal) -\u003e Decimal {\n        notional * Decimal::from(self.fee_rate_bps) / Decimal::from(10_000)\n    }\n\n    /// Validate market order parameters\n    fn validate_market_order(\u0026self, order: \u0026MarketOrderRequest) -\u003e Result\u003c()\u003e {\n        if order.amount.is_zero() {\n            return Err(PolyfillError::order(\n                \"Market order amount cannot be zero\",\n                crate::errors::OrderErrorKind::InvalidSize,\n            ));\n        }\n\n        if order.amount \u003c self.min_fill_size {\n            return Err(PolyfillError::order(\n                format!(\"Order size {} below minimum {}\", order.amount, self.min_fill_size),\n                crate::errors::OrderErrorKind::SizeConstraint,\n            ));\n        }\n\n        Ok(())\n    }\n\n    /// Validate limit order parameters\n    fn validate_limit_order(\u0026self, order: \u0026OrderRequest) -\u003e Result\u003c()\u003e {\n        if order.size.is_zero() {\n            return Err(PolyfillError::order(\n                \"Limit order size cannot be zero\",\n                crate::errors::OrderErrorKind::InvalidSize,\n            ));\n        }\n\n        if order.price.is_zero() {\n            return Err(PolyfillError::order(\n                \"Limit order price cannot be zero\",\n                crate::errors::OrderErrorKind::InvalidPrice,\n            ));\n        }\n\n        if order.size \u003c self.min_fill_size {\n            return Err(PolyfillError::order(\n                format!(\"Order size {} below minimum {}\", order.size, self.min_fill_size),\n                crate::errors::OrderErrorKind::SizeConstraint,\n            ));\n        }\n\n        Ok(())\n    }\n\n    /// Get fills for an order\n    pub fn get_fills(\u0026self, order_id: \u0026str) -\u003e Option\u003c\u0026[FillEvent]\u003e {\n        self.fills.get(order_id).map(|f| f.as_slice())\n    }\n\n    /// Get all fills\n    pub fn get_all_fills(\u0026self) -\u003e Vec\u003c\u0026FillEvent\u003e {\n        self.fills.values().flatten().collect()\n    }\n\n    /// Clear fills for an order\n    pub fn clear_fills(\u0026mut self, order_id: \u0026str) {\n        self.fills.remove(order_id);\n    }\n\n    /// Get fill statistics\n    pub fn get_stats(\u0026self) -\u003e FillStats {\n        let total_fills = self.fills.values().flatten().count();\n        let total_volume: Decimal = self.fills.values().flatten().map(|f| f.size).sum();\n        let total_fees: Decimal = self.fills.values().flatten().map(|f| f.fee).sum();\n\n        FillStats {\n            total_orders: self.fills.len(),\n            total_fills,\n            total_volume,\n            total_fees,\n        }\n    }\n}\n\n/// Fill statistics\n#[derive(Debug, Clone)]\npub struct FillStats {\n    pub total_orders: usize,\n    pub total_fills: usize,\n    pub total_volume: Decimal,\n    pub total_fees: Decimal,\n}\n\n/// Fill event processor for real-time updates\n#[derive(Debug)]\npub struct FillProcessor {\n    /// Pending fills by order ID\n    pending_fills: HashMap\u003cString, Vec\u003cFillEvent\u003e\u003e,\n    /// Processed fills\n    processed_fills: Vec\u003cFillEvent\u003e,\n    /// Maximum pending fills to keep in memory\n    max_pending: usize,\n}\n\nimpl FillProcessor {\n    /// Create a new fill processor\n    pub fn new(max_pending: usize) -\u003e Self {\n        Self {\n            pending_fills: HashMap::new(),\n            processed_fills: Vec::new(),\n            max_pending,\n        }\n    }\n\n    /// Process a fill event\n    pub fn process_fill(\u0026mut self, fill: FillEvent) -\u003e Result\u003c()\u003e {\n        // Validate fill\n        self.validate_fill(\u0026fill)?;\n\n        // Add to pending fills\n        self.pending_fills\n            .entry(fill.order_id.clone())\n            .or_insert_with(Vec::new)\n            .push(fill.clone());\n\n        // Move to processed if complete\n        if self.is_order_complete(\u0026fill.order_id) {\n            if let Some(fills) = self.pending_fills.remove(\u0026fill.order_id) {\n                self.processed_fills.extend(fills);\n            }\n        }\n\n        // Cleanup if too many pending\n        if self.pending_fills.len() \u003e self.max_pending {\n            self.cleanup_old_pending();\n        }\n\n        debug!(\"Processed fill: {} {} @ {}\", fill.size, fill.side.as_str(), fill.price);\n\n        Ok(())\n    }\n\n    /// Validate a fill event\n    fn validate_fill(\u0026self, fill: \u0026FillEvent) -\u003e Result\u003c()\u003e {\n        if fill.size.is_zero() {\n            return Err(PolyfillError::order(\n                \"Fill size cannot be zero\",\n                crate::errors::OrderErrorKind::InvalidSize,\n            ));\n        }\n\n        if fill.price.is_zero() {\n            return Err(PolyfillError::order(\n                \"Fill price cannot be zero\",\n                crate::errors::OrderErrorKind::InvalidPrice,\n            ));\n        }\n\n        Ok(())\n    }\n\n    /// Check if an order is complete\n    fn is_order_complete(\u0026self, _order_id: \u0026str) -\u003e bool {\n        // Simplified implementation - in practice you'd check against order book\n        false\n    }\n\n    /// Cleanup old pending fills\n    fn cleanup_old_pending(\u0026mut self) {\n        // Remove oldest pending fills\n        let to_remove = self.pending_fills.len() - self.max_pending;\n        let mut keys: Vec\u003c_\u003e = self.pending_fills.keys().cloned().collect();\n        keys.sort(); // Simple ordering - in practice you'd use timestamps\n\n        for key in keys.iter().take(to_remove) {\n            self.pending_fills.remove(key);\n        }\n    }\n\n    /// Get pending fills for an order\n    pub fn get_pending_fills(\u0026self, order_id: \u0026str) -\u003e Option\u003c\u0026[FillEvent]\u003e {\n        self.pending_fills.get(order_id).map(|f| f.as_slice())\n    }\n\n    /// Get processed fills\n    pub fn get_processed_fills(\u0026self) -\u003e \u0026[FillEvent] {\n        \u0026self.processed_fills\n    }\n\n    /// Get fill statistics\n    pub fn get_stats(\u0026self) -\u003e FillProcessorStats {\n        let total_pending: Decimal = self.pending_fills.values().flatten().map(|f| f.size).sum();\n        let total_processed: Decimal = self.processed_fills.iter().map(|f| f.size).sum();\n\n        FillProcessorStats {\n            pending_orders: self.pending_fills.len(),\n            pending_fills: self.pending_fills.values().flatten().count(),\n            pending_volume: total_pending,\n            processed_fills: self.processed_fills.len(),\n            processed_volume: total_processed,\n        }\n    }\n}\n\n/// Fill processor statistics\n#[derive(Debug, Clone)]\npub struct FillProcessorStats {\n    pub pending_orders: usize,\n    pub pending_fills: usize,\n    pub pending_volume: Decimal,\n    pub processed_fills: usize,\n    pub processed_volume: Decimal,\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n    use rust_decimal_macros::dec;\n\n    #[test]\n    fn test_fill_engine_creation() {\n        let engine = FillEngine::new(dec!(1), dec!(5), 10);\n        assert_eq!(engine.min_fill_size, dec!(1));\n        assert_eq!(engine.max_slippage_pct, dec!(5));\n        assert_eq!(engine.fee_rate_bps, 10);\n    }\n\n    #[test]\n    fn test_market_order_validation() {\n        let engine = FillEngine::new(dec!(1), dec!(5), 10);\n        \n        let valid_order = MarketOrderRequest {\n            token_id: \"test\".to_string(),\n            side: Side::BUY,\n            amount: dec!(100),\n            slippage_tolerance: None,\n            client_id: None,\n        };\n        assert!(engine.validate_market_order(\u0026valid_order).is_ok());\n\n        let invalid_order = MarketOrderRequest {\n            token_id: \"test\".to_string(),\n            side: Side::BUY,\n            amount: dec!(0),\n            slippage_tolerance: None,\n            client_id: None,\n        };\n        assert!(engine.validate_market_order(\u0026invalid_order).is_err());\n    }\n\n    #[test]\n    fn test_fee_calculation() {\n        let engine = FillEngine::new(dec!(1), dec!(5), 10);\n        let fee = engine.calculate_fee(dec!(1000));\n        assert_eq!(fee, dec!(1)); // 10 bps = 0.1% = 1 on 1000\n    }\n\n    #[test]\n    fn test_fill_processor() {\n        let mut processor = FillProcessor::new(100);\n        \n        let fill = FillEvent {\n            id: \"fill1\".to_string(),\n            order_id: \"order1\".to_string(),\n            token_id: \"test\".to_string(),\n            side: Side::BUY,\n            price: dec!(0.5),\n            size: dec!(100),\n            timestamp: Utc::now(),\n            maker_address: Address::ZERO,\n            taker_address: Address::ZERO,\n            fee: dec!(0.1),\n        };\n\n        assert!(processor.process_fill(fill).is_ok());\n        assert_eq!(processor.pending_fills.len(), 1);\n    }\n} 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Polyfill-rs: High-performance Rust client for Polymarket\n//! \n//! # Features\n//! \n//! - **High-performance order book management** with optimized data structures\n//! - **Real-time market data streaming** with WebSocket support\n//! - **Trade execution simulation** with slippage protection\n//! - **Comprehensive error handling** with specific error types\n//! - **Rate limiting and retry logic** for robust API interactions\n//! - **Ethereum integration** with EIP-712 signing support\n//! - **Benchmarking tools** for performance analysis\n//! \n//! # Quick Start\n//! \n//! ```rust,no_run\n//! use polyfill_rs::{ClobClient, OrderArgs, Side};\n//! use rust_decimal::Decimal;\n//! use std::str::FromStr;\n//! \n//! #[tokio::main]\n//! async fn main() -\u003e Result\u003c(), Box\u003cdyn std::error::Error\u003e\u003e {\n//!     // Create client (compatible with polymarket-rs-client)\n//!     let mut client = ClobClient::with_l1_headers(\n//!         \"https://clob.polymarket.com\",\n//!         \"your_private_key\",\n//!         137,\n//!     );\n//! \n//!     // Get API credentials\n//!     let api_creds = client.create_or_derive_api_key(None).await.unwrap();\n//!     client.set_api_creds(api_creds);\n//! \n//!     // Create and post order\n//!     let order_args = OrderArgs::new(\n//!         \"token_id\",\n//!         Decimal::from_str(\"0.75\").unwrap(),\n//!         Decimal::from_str(\"100.0\").unwrap(),\n//!         Side::BUY,\n//!     );\n//! \n//!     let result = client.create_and_post_order(\u0026order_args).await.unwrap();\n//!     println!(\"Order posted: {:?}\", result);\n//! \n//!     Ok(())\n//! }\n//! ```\n//! \n//! # Advanced Usage\n//! \n//! ```rust,no_run\n//! use polyfill_rs::{ClobClient, OrderBookImpl};\n//! use rust_decimal::Decimal;\n//! \n//! #[tokio::main]\n//! async fn main() -\u003e Result\u003c(), Box\u003cdyn std::error::Error\u003e\u003e {\n//!     // Create a basic client\n//!     let client = ClobClient::new(\"https://clob.polymarket.com\");\n//! \n//!     // Get market data\n//!     let markets = client.get_sampling_markets(None).await.unwrap();\n//!     println!(\"Found {} markets\", markets.data.len());\n//! \n//!     // Create an order book for high-performance operations\n//!     let mut book = OrderBookImpl::new(\"token_id\".to_string(), 100); // 100 levels depth\n//!     println!(\"Order book created for token: {}\", book.token_id);\n//! \n//!     Ok(())\n//! }\n//! ```\n\nuse tracing::info;\n\n\n// Global constants\npub const DEFAULT_CHAIN_ID: u64 = 137; // Polygon\npub const DEFAULT_BASE_URL: \u0026str = \"https://clob.polymarket.com\";\npub const DEFAULT_TIMEOUT_SECS: u64 = 30;\npub const DEFAULT_MAX_RETRIES: u32 = 3;\npub const DEFAULT_RATE_LIMIT_RPS: u32 = 100;\n\n// Initialize logging\npub fn init() {\n    tracing_subscriber::fmt::init();\n    info!(\"Polyfill-rs initialized\");\n}\n\n// Re-export main types\npub use crate::types::{\n    ApiCredentials, Balance, BalanceAllowance, BatchMidpointRequest, BatchMidpointResponse,\n    BatchPriceRequest, BatchPriceResponse, ClientConfig, FillEvent, MarketSnapshot, \n    NotificationParams, OpenOrder, OpenOrderParams, Order, OrderBook, OrderDelta, \n    OrderRequest, OrderStatus, OrderType, Side, StreamMessage, TokenPrice, TradeParams,\n    WssAuth, WssSubscription, WssChannelType,\n    // Additional compatibility types\n    ApiKeysResponse, MidpointResponse, PriceResponse, SpreadResponse, TickSizeResponse,\n    NegRiskResponse, BookParams, MarketsResponse, SimplifiedMarketsResponse, Market,\n    SimplifiedMarket, Token, Rewards, ClientResult, OrderBookSummary, OrderSummary,\n    BalanceAllowanceParams, AssetType,\n};\n\n// Re-export client\npub use crate::client::{ClobClient, PolyfillClient};\n\n// Re-export compatibility types (for easy migration from polymarket-rs-client)\npub use crate::client::{\n    OrderArgs,\n};\n\n// Re-export error types\npub use crate::errors::{PolyfillError, Result};\n\n// Re-export advanced components\npub use crate::book::{OrderBook as OrderBookImpl, OrderBookManager};\npub use crate::fill::{FillEngine, FillResult};\npub use crate::stream::{MarketStream, StreamManager, WebSocketStream};\npub use crate::decode::Decoder;\n\n// Re-export utilities\npub use crate::utils::{\n    crypto, math, retry, time, url, rate_limit,\n};\n\n// Module declarations\npub mod auth;\npub mod book;\npub mod client;\npub mod decode;\npub mod errors;\npub mod fill;\npub mod orders;\npub mod stream;\npub mod types;\npub mod utils;\n\n// Benchmarks\n#[cfg(test)]\nmod benches {\n    use criterion::{criterion_group, criterion_main};\n    use crate::{OrderBookManager, OrderDelta, Side};\n    use rust_decimal::Decimal;\n    use chrono::Utc;\n    use std::str::FromStr;\n\n    fn order_book_benchmark(c: \u0026mut criterion::Criterion) {\n        let mut book_manager = OrderBookManager::new(100);\n        \n        c.bench_function(\"apply_order_delta\", |b| {\n            b.iter(|| {\n                let delta = OrderDelta {\n                    token_id: \"test_token\".to_string(),\n                    timestamp: Utc::now(),\n                    side: Side::BUY,\n                    price: Decimal::from_str(\"0.75\").unwrap(),\n                    size: Decimal::from_str(\"100.0\").unwrap(),\n                    sequence: 1,\n                };\n                \n                let _ = book_manager.apply_delta(delta);\n            });\n        });\n    }\n\n    criterion_group!(benches, order_book_benchmark);\n    criterion_main!(benches);\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n    use rust_decimal::Decimal;\n    use std::str::FromStr;\n\n    #[test]\n    fn test_client_creation() {\n        let client = ClobClient::new(\"https://test.example.com\");\n        // Test that the client was created successfully\n        // We can't test private fields, but we can verify the client exists\n        assert!(true); // Client creation successful\n    }\n\n    #[test]\n    fn test_order_args_creation() {\n        let args = OrderArgs::new(\n            \"test_token\",\n            Decimal::from_str(\"0.75\").unwrap(),\n            Decimal::from_str(\"100.0\").unwrap(),\n            Side::BUY,\n        );\n        \n        assert_eq!(args.token_id, \"test_token\");\n        assert_eq!(args.side, Side::BUY);\n    }\n\n    #[test]\n    fn test_order_args_default() {\n        let args = OrderArgs::default();\n        assert_eq!(args.token_id, \"\");\n        assert_eq!(args.price, Decimal::ZERO);\n        assert_eq!(args.size, Decimal::ZERO);\n        assert_eq!(args.side, Side::BUY);\n    }\n} ","traces":[{"line":82,"address":[],"length":0,"stats":{"Line":0}},{"line":83,"address":[],"length":0,"stats":{"Line":0}},{"line":84,"address":[],"length":0,"stats":{"Line":0}}],"covered":0,"coverable":3},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","src","orders.rs"],"content":"//! Order creation and signing functionality\n//!\n//! This module handles the complex process of creating and signing orders\n//! for the Polymarket CLOB, including EIP-712 signature generation.\n\nuse crate::auth::sign_order_message;\nuse crate::errors::{PolyfillError, Result};\nuse crate::client::OrderArgs;\nuse crate::types::{ExtraOrderArgs, MarketOrderArgs, OrderOptions, SignedOrderRequest, Side};\nuse alloy_primitives::{Address, U256};\nuse alloy_signer_local::PrivateKeySigner;\nuse rand::Rng;\nuse rust_decimal::Decimal;\nuse rust_decimal::RoundingStrategy::{AwayFromZero, MidpointTowardZero, ToZero};\nuse std::collections::HashMap;\nuse std::str::FromStr;\nuse std::sync::LazyLock;\nuse std::time::{SystemTime, UNIX_EPOCH};\n\n/// Signature types for orders\n#[derive(Copy, Clone)]\npub enum SigType {\n    /// ECDSA EIP712 signatures signed by EOAs\n    Eoa = 0,\n    /// EIP712 signatures signed by EOAs that own Polymarket Proxy wallets\n    PolyProxy = 1,\n    /// EIP712 signatures signed by EOAs that own Polymarket Gnosis safes\n    PolyGnosisSafe = 2,\n}\n\n/// Rounding configuration for different tick sizes\npub struct RoundConfig {\n    price: u32,\n    size: u32,\n    amount: u32,\n}\n\n/// Contract configuration\npub struct ContractConfig {\n    pub exchange: String,\n    pub collateral: String,\n    pub conditional_tokens: String,\n}\n\n\n/// Order builder for creating and signing orders\npub struct OrderBuilder {\n    signer: PrivateKeySigner,\n    sig_type: SigType,\n    funder: Address,\n}\n\n/// Rounding configurations for different tick sizes\nstatic ROUNDING_CONFIG: LazyLock\u003cHashMap\u003cDecimal, RoundConfig\u003e\u003e = LazyLock::new(|| {\n    HashMap::from([\n        (\n            Decimal::from_str(\"0.1\").unwrap(),\n            RoundConfig {\n                price: 1,\n                size: 2,\n                amount: 3,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.01\").unwrap(),\n            RoundConfig {\n                price: 2,\n                size: 2,\n                amount: 4,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.001\").unwrap(),\n            RoundConfig {\n                price: 3,\n                size: 2,\n                amount: 5,\n            },\n        ),\n        (\n            Decimal::from_str(\"0.0001\").unwrap(),\n            RoundConfig {\n                price: 4,\n                size: 2,\n                amount: 6,\n            },\n        ),\n    ])\n});\n\n/// Get contract configuration for chain\npub fn get_contract_config(chain_id: u64, neg_risk: bool) -\u003e Option\u003cContractConfig\u003e {\n    match (chain_id, neg_risk) {\n        (137, false) =\u003e Some(ContractConfig {\n            exchange: \"0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E\".to_string(),\n            collateral: \"0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174\".to_string(),\n            conditional_tokens: \"0x4D97DCd97eC945f40cF65F87097ACe5EA0476045\".to_string(),\n        }),\n        (137, true) =\u003e Some(ContractConfig {\n            exchange: \"0xC5d563A36AE78145C45a50134d48A1215220f80a\".to_string(),\n            collateral: \"0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174\".to_string(),\n            conditional_tokens: \"0x4D97DCd97eC945f40cF65F87097ACe5EA0476045\".to_string(),\n        }),\n        _ =\u003e None,\n    }\n}\n\n/// Generate a random seed for order salt\nfn generate_seed() -\u003e u64 {\n    let mut rng = rand::thread_rng();\n    let y: f64 = rng.gen();\n    let timestamp = SystemTime::now()\n        .duration_since(UNIX_EPOCH)\n        .expect(\"Time went backwards\")\n        .as_secs();\n    (timestamp as f64 * y) as u64\n}\n\n/// Convert decimal to token units (multiply by 1e6)\nfn decimal_to_token_u32(amt: Decimal) -\u003e u32 {\n    let mut amt = Decimal::from_scientific(\"1e6\").expect(\"1e6 is not scientific\") * amt;\n    if amt.scale() \u003e 0 {\n        amt = amt.round_dp_with_strategy(0, MidpointTowardZero);\n    }\n    amt.try_into().expect(\"Couldn't round decimal to integer\")\n}\n\nimpl OrderBuilder {\n    /// Create a new order builder\n    pub fn new(\n        signer: PrivateKeySigner,\n        sig_type: Option\u003cSigType\u003e,\n        funder: Option\u003cAddress\u003e,\n    ) -\u003e Self {\n        let sig_type = sig_type.unwrap_or(SigType::Eoa);\n        let funder = funder.unwrap_or(signer.address());\n\n        OrderBuilder {\n            signer,\n            sig_type,\n            funder,\n        }\n    }\n\n    /// Get signature type as u8\n    pub fn get_sig_type(\u0026self) -\u003e u8 {\n        self.sig_type as u8\n    }\n\n    /// Fix amount rounding according to configuration\n    fn fix_amount_rounding(\u0026self, mut amt: Decimal, round_config: \u0026RoundConfig) -\u003e Decimal {\n        if amt.scale() \u003e round_config.amount {\n            amt = amt.round_dp_with_strategy(round_config.amount + 4, AwayFromZero);\n            if amt.scale() \u003e round_config.amount {\n                amt = amt.round_dp_with_strategy(round_config.amount, ToZero);\n            }\n        }\n        amt\n    }\n\n    /// Get order amounts (maker and taker) for a regular order\n    fn get_order_amounts(\n        \u0026self,\n        side: Side,\n        size: Decimal,\n        price: Decimal,\n        round_config: \u0026RoundConfig,\n    ) -\u003e (u32, u32) {\n        let raw_price = price.round_dp_with_strategy(round_config.price, MidpointTowardZero);\n\n        match side {\n            Side::BUY =\u003e {\n                let raw_taker_amt = size.round_dp_with_strategy(round_config.size, ToZero);\n                let raw_maker_amt = raw_taker_amt * raw_price;\n                let raw_maker_amt = self.fix_amount_rounding(raw_maker_amt, round_config);\n                (\n                    decimal_to_token_u32(raw_maker_amt),\n                    decimal_to_token_u32(raw_taker_amt),\n                )\n            }\n            Side::SELL =\u003e {\n                let raw_maker_amt = size.round_dp_with_strategy(round_config.size, ToZero);\n                let raw_taker_amt = raw_maker_amt * raw_price;\n                let raw_taker_amt = self.fix_amount_rounding(raw_taker_amt, round_config);\n\n                (\n                    decimal_to_token_u32(raw_maker_amt),\n                    decimal_to_token_u32(raw_taker_amt),\n                )\n            }\n        }\n    }\n\n    /// Get order amounts for a market order\n    fn get_market_order_amounts(\n        \u0026self,\n        amount: Decimal,\n        price: Decimal,\n        round_config: \u0026RoundConfig,\n    ) -\u003e (u32, u32) {\n        let raw_maker_amt = amount.round_dp_with_strategy(round_config.size, ToZero);\n        let raw_price = price.round_dp_with_strategy(round_config.price, MidpointTowardZero);\n\n        let raw_taker_amt = raw_maker_amt / raw_price;\n        let raw_taker_amt = self.fix_amount_rounding(raw_taker_amt, round_config);\n\n        (\n            decimal_to_token_u32(raw_maker_amt),\n            decimal_to_token_u32(raw_taker_amt),\n        )\n    }\n\n    /// Calculate market price from order book levels\n    pub fn calculate_market_price(\n        \u0026self,\n        positions: \u0026[crate::types::BookLevel],\n        amount_to_match: Decimal,\n    ) -\u003e Result\u003cDecimal\u003e {\n        let mut sum = Decimal::ZERO;\n\n        for level in positions {\n            sum += level.size * level.price;\n            if sum \u003e= amount_to_match {\n                return Ok(level.price);\n            }\n        }\n        \n        Err(PolyfillError::order(\n            format!(\"Not enough liquidity to create market order with amount {}\", amount_to_match),\n            crate::errors::OrderErrorKind::InsufficientBalance,\n        ))\n    }\n\n    /// Create a market order\n    pub fn create_market_order(\n        \u0026self,\n        chain_id: u64,\n        order_args: \u0026MarketOrderArgs,\n        price: Decimal,\n        extras: \u0026ExtraOrderArgs,\n        options: \u0026OrderOptions,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let tick_size = options.tick_size\n            .ok_or_else(|| PolyfillError::validation(\"Cannot create order without tick size\"))?;\n        \n        let (maker_amount, taker_amount) = self.get_market_order_amounts(\n            order_args.amount,\n            price,\n            \u0026ROUNDING_CONFIG[\u0026tick_size],\n        );\n\n        let neg_risk = options.neg_risk\n            .ok_or_else(|| PolyfillError::validation(\"Cannot create order without neg_risk\"))?;\n\n        let contract_config = get_contract_config(chain_id, neg_risk)\n            .ok_or_else(|| PolyfillError::config(\"No contract found with given chain_id and neg_risk\"))?;\n\n        let exchange_address = Address::from_str(\u0026contract_config.exchange)\n            .map_err(|e| PolyfillError::config(format!(\"Invalid exchange address: {}\", e)))?;\n\n        self.build_signed_order(\n            order_args.token_id.clone(),\n            Side::BUY,\n            chain_id,\n            exchange_address,\n            maker_amount,\n            taker_amount,\n            0,\n            extras,\n        )\n    }\n\n    /// Create a regular order\n    pub fn create_order(\n        \u0026self,\n        chain_id: u64,\n        order_args: \u0026OrderArgs,\n        expiration: u64,\n        extras: \u0026ExtraOrderArgs,\n        options: \u0026OrderOptions,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let tick_size = options.tick_size\n            .ok_or_else(|| PolyfillError::validation(\"Cannot create order without tick size\"))?;\n        \n        let (maker_amount, taker_amount) = self.get_order_amounts(\n            order_args.side,\n            order_args.size,\n            order_args.price,\n            \u0026ROUNDING_CONFIG[\u0026tick_size],\n        );\n\n        let neg_risk = options.neg_risk\n            .ok_or_else(|| PolyfillError::validation(\"Cannot create order without neg_risk\"))?;\n\n        let contract_config = get_contract_config(chain_id, neg_risk)\n            .ok_or_else(|| PolyfillError::config(\"No contract found with given chain_id and neg_risk\"))?;\n\n        let exchange_address = Address::from_str(\u0026contract_config.exchange)\n            .map_err(|e| PolyfillError::config(format!(\"Invalid exchange address: {}\", e)))?;\n\n        self.build_signed_order(\n            order_args.token_id.clone(),\n            order_args.side,\n            chain_id,\n            exchange_address,\n            maker_amount,\n            taker_amount,\n            expiration,\n            extras,\n        )\n    }\n\n    /// Build and sign an order\n    #[allow(clippy::too_many_arguments)]\n    fn build_signed_order(\n        \u0026self,\n        token_id: String,\n        side: Side,\n        chain_id: u64,\n        exchange: Address,\n        maker_amount: u32,\n        taker_amount: u32,\n        expiration: u64,\n        extras: \u0026ExtraOrderArgs,\n    ) -\u003e Result\u003cSignedOrderRequest\u003e {\n        let seed = generate_seed();\n        let taker_address = Address::from_str(\u0026extras.taker)\n            .map_err(|e| PolyfillError::validation(format!(\"Invalid taker address: {}\", e)))?;\n\n        let u256_token_id = U256::from_str_radix(\u0026token_id, 10)\n            .map_err(|e| PolyfillError::validation(format!(\"Incorrect tokenId format: {}\", e)))?;\n\n        let order = crate::auth::Order {\n            salt: U256::from(seed),\n            maker: self.funder,\n            signer: self.signer.address(),\n            taker: taker_address,\n            tokenId: u256_token_id,\n            makerAmount: U256::from(maker_amount),\n            takerAmount: U256::from(taker_amount),\n            expiration: U256::from(expiration),\n            nonce: extras.nonce,\n            feeRateBps: U256::from(extras.fee_rate_bps),\n            side: side as u8,\n            signatureType: self.sig_type as u8,\n        };\n\n        let signature = sign_order_message(\u0026self.signer, order, chain_id, exchange)?;\n\n        Ok(SignedOrderRequest {\n            salt: seed,\n            maker: self.funder.to_checksum(None),\n            signer: self.signer.address().to_checksum(None),\n            taker: taker_address.to_checksum(None),\n            token_id,\n            maker_amount: maker_amount.to_string(),\n            taker_amount: taker_amount.to_string(),\n            expiration: expiration.to_string(),\n            nonce: extras.nonce.to_string(),\n            fee_rate_bps: extras.fee_rate_bps.to_string(),\n            side: side.as_str().to_string(),\n            signature_type: self.sig_type as u8,\n            signature,\n        })\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_decimal_to_token_u32() {\n        let result = decimal_to_token_u32(Decimal::from_str(\"1.5\").unwrap());\n        assert_eq!(result, 1_500_000);\n    }\n\n    #[test]\n    fn test_generate_seed() {\n        let seed1 = generate_seed();\n        let seed2 = generate_seed();\n        assert_ne!(seed1, seed2);\n    }\n\n    #[test]\n    fn test_decimal_to_token_u32_edge_cases() {\n        // Test zero\n        let result = decimal_to_token_u32(Decimal::ZERO);\n        assert_eq!(result, 0);\n        \n        // Test small decimal\n        let result = decimal_to_token_u32(Decimal::from_str(\"0.000001\").unwrap());\n        assert_eq!(result, 1);\n        \n        // Test large number\n        let result = decimal_to_token_u32(Decimal::from_str(\"1000.0\").unwrap());\n        assert_eq!(result, 1_000_000_000);\n    }\n\n    #[test]\n    fn test_get_contract_config() {\n        // Test Polygon mainnet\n        let config = get_contract_config(137, false);\n        assert!(config.is_some());\n        \n        // Test with neg risk\n        let config_neg = get_contract_config(137, true);\n        assert!(config_neg.is_some());\n        \n        // Test unsupported chain\n        let config_unsupported = get_contract_config(999, false);\n        assert!(config_unsupported.is_none());\n    }\n\n    #[test]\n    fn test_seed_generation_uniqueness() {\n        let mut seeds = std::collections::HashSet::new();\n        \n        // Generate 1000 seeds and ensure they're all unique\n        for _ in 0..1000 {\n            let seed = generate_seed();\n            assert!(seeds.insert(seed), \"Duplicate seed generated\");\n        }\n    }\n\n    #[test]\n    fn test_seed_generation_range() {\n        for _ in 0..100 {\n            let seed = generate_seed();\n            // Seeds should be positive and within reasonable range\n            assert!(seed \u003e 0);\n            assert!(seed \u003c u64::MAX);\n        }\n    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Async streaming functionality for Polymarket client\n//!\n//! This module provides high-performance streaming capabilities for\n//! real-time market data and order updates.\n\nuse crate::errors::{PolyfillError, Result};\nuse crate::types::*;\nuse futures::{Stream, SinkExt, StreamExt};\nuse serde_json::Value;\nuse std::pin::Pin;\nuse std::task::{Context, Poll};\nuse tokio::sync::mpsc;\nuse tracing::{debug, error, info, warn};\nuse chrono::Utc;\n\n/// Trait for market data streams\npub trait MarketStream: Stream\u003cItem = Result\u003cStreamMessage\u003e\u003e + Send + Sync {\n    /// Subscribe to market data for specific tokens\n    fn subscribe(\u0026mut self, subscription: Subscription) -\u003e Result\u003c()\u003e;\n    \n    /// Unsubscribe from market data\n    fn unsubscribe(\u0026mut self, token_ids: \u0026[String]) -\u003e Result\u003c()\u003e;\n    \n    /// Check if the stream is connected\n    fn is_connected(\u0026self) -\u003e bool;\n    \n    /// Get connection statistics\n    fn get_stats(\u0026self) -\u003e StreamStats;\n}\n\n/// WebSocket-based market stream implementation\n#[derive(Debug)]\npub struct WebSocketStream {\n    /// WebSocket connection\n    connection: Option\u003ctokio_tungstenite::WebSocketStream\u003ctokio_tungstenite::MaybeTlsStream\u003ctokio::net::TcpStream\u003e\u003e\u003e,\n    /// URL for the WebSocket connection\n    url: String,\n    /// Authentication credentials\n    auth: Option\u003cWssAuth\u003e,\n    /// Current subscriptions\n    subscriptions: Vec\u003cWssSubscription\u003e,\n    /// Message sender for internal communication\n    tx: mpsc::UnboundedSender\u003cStreamMessage\u003e,\n    /// Message receiver\n    rx: mpsc::UnboundedReceiver\u003cStreamMessage\u003e,\n    /// Connection statistics\n    stats: StreamStats,\n    /// Reconnection configuration\n    reconnect_config: ReconnectConfig,\n}\n\n/// Stream statistics\n#[derive(Debug, Clone)]\npub struct StreamStats {\n    pub messages_received: u64,\n    pub messages_sent: u64,\n    pub errors: u64,\n    pub last_message_time: Option\u003cchrono::DateTime\u003cUtc\u003e\u003e,\n    pub connection_uptime: std::time::Duration,\n    pub reconnect_count: u32,\n}\n\n/// Reconnection configuration\n#[derive(Debug, Clone)]\npub struct ReconnectConfig {\n    pub max_retries: u32,\n    pub base_delay: std::time::Duration,\n    pub max_delay: std::time::Duration,\n    pub backoff_multiplier: f64,\n}\n\nimpl Default for ReconnectConfig {\n    fn default() -\u003e Self {\n        Self {\n            max_retries: 5,\n            base_delay: std::time::Duration::from_secs(1),\n            max_delay: std::time::Duration::from_secs(60),\n            backoff_multiplier: 2.0,\n        }\n    }\n}\n\nimpl WebSocketStream {\n    /// Create a new WebSocket stream\n    pub fn new(url: \u0026str) -\u003e Self {\n        let (tx, rx) = mpsc::unbounded_channel();\n        \n        Self {\n            connection: None,\n            url: url.to_string(),\n            auth: None,\n            subscriptions: Vec::new(),\n            tx,\n            rx,\n            stats: StreamStats {\n                messages_received: 0,\n                messages_sent: 0,\n                errors: 0,\n                last_message_time: None,\n                connection_uptime: std::time::Duration::ZERO,\n                reconnect_count: 0,\n            },\n            reconnect_config: ReconnectConfig::default(),\n        }\n    }\n\n    /// Set authentication credentials\n    pub fn with_auth(mut self, auth: WssAuth) -\u003e Self {\n        self.auth = Some(auth);\n        self\n    }\n\n    /// Connect to the WebSocket\n    async fn connect(\u0026mut self) -\u003e Result\u003c()\u003e {\n        let (ws_stream, _) = tokio_tungstenite::connect_async(\u0026self.url).await\n            .map_err(|e| PolyfillError::stream(format!(\"WebSocket connection failed: {}\", e), crate::errors::StreamErrorKind::ConnectionFailed))?;\n\n        self.connection = Some(ws_stream);\n        info!(\"Connected to WebSocket stream at {}\", self.url);\n        Ok(())\n    }\n\n    /// Send a message to the WebSocket\n    async fn send_message(\u0026mut self, message: Value) -\u003e Result\u003c()\u003e {\n        if let Some(connection) = \u0026mut self.connection {\n            let text = serde_json::to_string(\u0026message)\n                .map_err(|e| PolyfillError::parse(format!(\"Failed to serialize message: {}\", e), None))?;\n            \n            let ws_message = tokio_tungstenite::tungstenite::Message::Text(text);\n            connection.send(ws_message).await\n                .map_err(|e| PolyfillError::stream(format!(\"Failed to send message: {}\", e), crate::errors::StreamErrorKind::MessageCorrupted))?;\n            \n            self.stats.messages_sent += 1;\n        }\n        \n        Ok(())\n    }\n\n    /// Subscribe to market data using official Polymarket WebSocket API\n    pub async fn subscribe_async(\u0026mut self, subscription: WssSubscription) -\u003e Result\u003c()\u003e {\n        // Ensure connection\n        if self.connection.is_none() {\n            self.connect().await?;\n        }\n\n        // Send subscription message in the format expected by Polymarket\n        let message = serde_json::json!({\n            \"auth\": subscription.auth,\n            \"markets\": subscription.markets,\n            \"asset_ids\": subscription.asset_ids,\n            \"type\": subscription.channel_type,\n        });\n\n        self.send_message(message).await?;\n        self.subscriptions.push(subscription.clone());\n        \n        info!(\"Subscribed to {} channel\", subscription.channel_type);\n        Ok(())\n    }\n\n    /// Subscribe to user channel (orders and trades)\n    pub async fn subscribe_user_channel(\u0026mut self, markets: Vec\u003cString\u003e) -\u003e Result\u003c()\u003e {\n        let auth = self.auth.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"No authentication provided for WebSocket\"))?\n            .clone();\n\n        let subscription = WssSubscription {\n            auth,\n            markets: Some(markets),\n            asset_ids: None,\n            channel_type: \"USER\".to_string(),\n        };\n\n        self.subscribe_async(subscription).await\n    }\n\n    /// Subscribe to market channel (order book and trades)\n    pub async fn subscribe_market_channel(\u0026mut self, asset_ids: Vec\u003cString\u003e) -\u003e Result\u003c()\u003e {\n        let auth = self.auth.as_ref()\n            .ok_or_else(|| PolyfillError::auth(\"No authentication provided for WebSocket\"))?\n            .clone();\n\n        let subscription = WssSubscription {\n            auth,\n            markets: None,\n            asset_ids: Some(asset_ids),\n            channel_type: \"MARKET\".to_string(),\n        };\n\n        self.subscribe_async(subscription).await\n    }\n\n    /// Unsubscribe from market data\n    pub async fn unsubscribe_async(\u0026mut self, token_ids: \u0026[String]) -\u003e Result\u003c()\u003e {\n        // Note: Polymarket WebSocket API doesn't seem to have explicit unsubscribe\n        // We'll just remove from our local subscriptions\n        self.subscriptions.retain(|sub| {\n            match sub.channel_type.as_str() {\n                \"USER\" =\u003e {\n                    if let Some(markets) = \u0026sub.markets {\n                        !token_ids.iter().any(|id| markets.contains(id))\n                    } else {\n                        true\n                    }\n                }\n                \"MARKET\" =\u003e {\n                    if let Some(asset_ids) = \u0026sub.asset_ids {\n                        !token_ids.iter().any(|id| asset_ids.contains(id))\n                    } else {\n                        true\n                    }\n                }\n                _ =\u003e true\n            }\n        });\n        \n        info!(\"Unsubscribed from {} tokens\", token_ids.len());\n        Ok(())\n    }\n\n    /// Handle incoming WebSocket messages\n    async fn handle_message(\u0026mut self, message: tokio_tungstenite::tungstenite::Message) -\u003e Result\u003c()\u003e {\n        match message {\n            tokio_tungstenite::tungstenite::Message::Text(text) =\u003e {\n                debug!(\"Received WebSocket message: {}\", text);\n                \n                // Parse the message according to Polymarket's format\n                let stream_message = self.parse_polymarket_message(\u0026text)?;\n                \n                // Send to internal channel\n                if let Err(e) = self.tx.send(stream_message) {\n                    error!(\"Failed to send message to internal channel: {}\", e);\n                }\n                \n                self.stats.messages_received += 1;\n                self.stats.last_message_time = Some(Utc::now());\n            }\n            tokio_tungstenite::tungstenite::Message::Close(_) =\u003e {\n                info!(\"WebSocket connection closed by server\");\n                self.connection = None;\n            }\n            tokio_tungstenite::tungstenite::Message::Ping(data) =\u003e {\n                // Respond with pong\n                if let Some(connection) = \u0026mut self.connection {\n                    let pong = tokio_tungstenite::tungstenite::Message::Pong(data);\n                    if let Err(e) = connection.send(pong).await {\n                        error!(\"Failed to send pong: {}\", e);\n                    }\n                }\n            }\n            tokio_tungstenite::tungstenite::Message::Pong(_) =\u003e {\n                // Handle pong if needed\n                debug!(\"Received pong\");\n            }\n            tokio_tungstenite::tungstenite::Message::Binary(_) =\u003e {\n                warn!(\"Received binary message (not supported)\");\n            }\n            tokio_tungstenite::tungstenite::Message::Frame(_) =\u003e {\n                warn!(\"Received raw frame (not supported)\");\n            }\n        }\n        \n        Ok(())\n    }\n\n    /// Parse Polymarket WebSocket message format\n    fn parse_polymarket_message(\u0026self, text: \u0026str) -\u003e Result\u003cStreamMessage\u003e {\n        let value: Value = serde_json::from_str(text)\n            .map_err(|e| PolyfillError::parse(format!(\"Failed to parse WebSocket message: {}\", e), Some(Box::new(e))))?;\n\n        // Extract message type\n        let message_type = value.get(\"type\")\n            .and_then(|v| v.as_str())\n            .ok_or_else(|| PolyfillError::parse(\"Missing 'type' field in WebSocket message\", None))?;\n\n        match message_type {\n            \"book_update\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse book update: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::BookUpdate { data })\n            }\n            \"trade\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse trade: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::Trade { data })\n            }\n            \"order_update\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse order update: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::OrderUpdate { data })\n            }\n            \"user_order_update\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse user order update: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::UserOrderUpdate { data })\n            }\n            \"user_trade\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse user trade: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::UserTrade { data })\n            }\n            \"market_book_update\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse market book update: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::MarketBookUpdate { data })\n            }\n            \"market_trade\" =\u003e {\n                let data = serde_json::from_value(value.get(\"data\").unwrap_or(\u0026Value::Null).clone())\n                    .map_err(|e| PolyfillError::parse(format!(\"Failed to parse market trade: {}\", e), Some(Box::new(e))))?;\n                Ok(StreamMessage::MarketTrade { data })\n            }\n            \"heartbeat\" =\u003e {\n                let timestamp = value.get(\"timestamp\")\n                    .and_then(|v| v.as_u64())\n                    .map(|ts| chrono::DateTime::from_timestamp(ts as i64, 0).unwrap_or_default())\n                    .unwrap_or_else(Utc::now);\n                Ok(StreamMessage::Heartbeat { timestamp })\n            }\n            _ =\u003e {\n                warn!(\"Unknown message type: {}\", message_type);\n                // Return heartbeat as fallback\n                Ok(StreamMessage::Heartbeat { timestamp: Utc::now() })\n            }\n        }\n    }\n\n    /// Reconnect with exponential backoff\n    async fn reconnect(\u0026mut self) -\u003e Result\u003c()\u003e {\n        let mut delay = self.reconnect_config.base_delay;\n        let mut retries = 0;\n\n        while retries \u003c self.reconnect_config.max_retries {\n            warn!(\"Attempting to reconnect (attempt {})\", retries + 1);\n            \n            match self.connect().await {\n                Ok(()) =\u003e {\n                    info!(\"Successfully reconnected\");\n                    self.stats.reconnect_count += 1;\n                    \n                    // Resubscribe to all previous subscriptions\n                    let subscriptions = self.subscriptions.clone();\n                    for subscription in subscriptions {\n                        self.send_message(serde_json::to_value(subscription)?).await?;\n                    }\n                    \n                    return Ok(());\n                }\n                Err(e) =\u003e {\n                    error!(\"Reconnection attempt {} failed: {}\", retries + 1, e);\n                    retries += 1;\n                    \n                    if retries \u003c self.reconnect_config.max_retries {\n                        tokio::time::sleep(delay).await;\n                        delay = std::cmp::min(\n                            delay.mul_f64(self.reconnect_config.backoff_multiplier),\n                            self.reconnect_config.max_delay\n                        );\n                    }\n                }\n            }\n        }\n\n        Err(PolyfillError::stream(\n            format!(\"Failed to reconnect after {} attempts\", self.reconnect_config.max_retries),\n            crate::errors::StreamErrorKind::ConnectionFailed\n        ))\n    }\n}\n\nimpl Stream for WebSocketStream {\n    type Item = Result\u003cStreamMessage\u003e;\n\n    fn poll_next(mut self: Pin\u003c\u0026mut Self\u003e, cx: \u0026mut Context\u003c'_\u003e) -\u003e Poll\u003cOption\u003cSelf::Item\u003e\u003e {\n        // First check internal channel\n        if let Poll::Ready(Some(message)) = self.rx.poll_recv(cx) {\n            return Poll::Ready(Some(Ok(message)));\n        }\n\n        // Then check WebSocket connection\n        if let Some(connection) = \u0026mut self.connection {\n            match connection.poll_next_unpin(cx) {\n                Poll::Ready(Some(Ok(_message))) =\u003e {\n                    // Simplified message handling\n                    Poll::Ready(Some(Ok(StreamMessage::Heartbeat { timestamp: Utc::now() })))\n                }\n                Poll::Ready(Some(Err(e))) =\u003e {\n                    error!(\"WebSocket error: {}\", e);\n                    self.stats.errors += 1;\n                    Poll::Ready(Some(Err(e.into())))\n                }\n                Poll::Ready(None) =\u003e {\n                    info!(\"WebSocket stream ended\");\n                    Poll::Ready(None)\n                }\n                Poll::Pending =\u003e Poll::Pending,\n            }\n        } else {\n            Poll::Ready(None)\n        }\n    }\n}\n\nimpl MarketStream for WebSocketStream {\n    fn subscribe(\u0026mut self, _subscription: Subscription) -\u003e Result\u003c()\u003e {\n        // This is for backward compatibility - use subscribe_async for new code\n        Ok(())\n    }\n\n    fn unsubscribe(\u0026mut self, _token_ids: \u0026[String]) -\u003e Result\u003c()\u003e {\n        // This is for backward compatibility - use unsubscribe_async for new code\n        Ok(())\n    }\n\n    fn is_connected(\u0026self) -\u003e bool {\n        self.connection.is_some()\n    }\n\n    fn get_stats(\u0026self) -\u003e StreamStats {\n        self.stats.clone()\n    }\n}\n\n/// Mock stream for testing\n#[derive(Debug)]\npub struct MockStream {\n    messages: Vec\u003cResult\u003cStreamMessage\u003e\u003e,\n    index: usize,\n    connected: bool,\n}\n\nimpl MockStream {\n    pub fn new() -\u003e Self {\n        Self {\n            messages: Vec::new(),\n            index: 0,\n            connected: true,\n        }\n    }\n\n    pub fn add_message(\u0026mut self, message: StreamMessage) {\n        self.messages.push(Ok(message));\n    }\n\n    pub fn add_error(\u0026mut self, error: PolyfillError) {\n        self.messages.push(Err(error));\n    }\n\n    pub fn set_connected(\u0026mut self, connected: bool) {\n        self.connected = connected;\n    }\n}\n\nimpl Stream for MockStream {\n    type Item = Result\u003cStreamMessage\u003e;\n\n    fn poll_next(mut self: Pin\u003c\u0026mut Self\u003e, _cx: \u0026mut Context\u003c'_\u003e) -\u003e Poll\u003cOption\u003cSelf::Item\u003e\u003e {\n        if self.index \u003e= self.messages.len() {\n            Poll::Ready(None)\n        } else {\n            let message = self.messages[self.index].clone();\n            self.index += 1;\n            Poll::Ready(Some(message))\n        }\n    }\n}\n\nimpl MarketStream for MockStream {\n    fn subscribe(\u0026mut self, _subscription: Subscription) -\u003e Result\u003c()\u003e {\n        Ok(())\n    }\n\n    fn unsubscribe(\u0026mut self, _token_ids: \u0026[String]) -\u003e Result\u003c()\u003e {\n        Ok(())\n    }\n\n    fn is_connected(\u0026self) -\u003e bool {\n        self.connected\n    }\n\n    fn get_stats(\u0026self) -\u003e StreamStats {\n        StreamStats {\n            messages_received: self.messages.len() as u64,\n            messages_sent: 0,\n            errors: self.messages.iter().filter(|m| m.is_err()).count() as u64,\n            last_message_time: None,\n            connection_uptime: std::time::Duration::ZERO,\n            reconnect_count: 0,\n        }\n    }\n}\n\n/// Stream manager for handling multiple streams\npub struct StreamManager {\n    streams: Vec\u003cBox\u003cdyn MarketStream\u003e\u003e,\n    message_tx: mpsc::UnboundedSender\u003cStreamMessage\u003e,\n    message_rx: mpsc::UnboundedReceiver\u003cStreamMessage\u003e,\n}\n\nimpl StreamManager {\n    pub fn new() -\u003e Self {\n        let (message_tx, message_rx) = mpsc::unbounded_channel();\n        \n        Self {\n            streams: Vec::new(),\n            message_tx,\n            message_rx,\n        }\n    }\n\n    pub fn add_stream(\u0026mut self, stream: Box\u003cdyn MarketStream\u003e) {\n        self.streams.push(stream);\n    }\n\n    pub fn get_message_receiver(\u0026mut self) -\u003e mpsc::UnboundedReceiver\u003cStreamMessage\u003e {\n        // Note: UnboundedReceiver doesn't implement Clone\n        // In a real implementation, you'd want to use a different approach\n        // For now, we'll return a dummy receiver\n        let (_, rx) = mpsc::unbounded_channel();\n        rx\n    }\n\n    pub fn broadcast_message(\u0026self, message: StreamMessage) -\u003e Result\u003c()\u003e {\n        self.message_tx.send(message)\n            .map_err(|e| PolyfillError::internal(\"Failed to broadcast message\", e))\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_mock_stream() {\n        let mut stream = MockStream::new();\n        \n        // Add some test messages\n        stream.add_message(StreamMessage::Heartbeat { timestamp: Utc::now() });\n        stream.add_message(StreamMessage::BookUpdate {\n            data: OrderDelta {\n                token_id: \"test\".to_string(),\n                timestamp: Utc::now(),\n                side: Side::BUY,\n                price: rust_decimal_macros::dec!(0.5),\n                size: rust_decimal_macros::dec!(100),\n                sequence: 1,\n            }\n        });\n        \n        assert!(stream.is_connected());\n        assert_eq!(stream.get_stats().messages_received, 2);\n    }\n\n    #[test]\n    fn test_stream_manager() {\n        let mut manager = StreamManager::new();\n        let mock_stream = Box::new(MockStream::new());\n        manager.add_stream(mock_stream);\n        \n        // Test message broadcasting\n        let message = StreamMessage::Heartbeat { timestamp: Utc::now() };\n        assert!(manager.broadcast_message(message).is_ok());\n    }\n} 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Core types for the Polymarket client\n//!\n//! This module defines all the stable public types used throughout the client.\n//! These types are optimized for latency-sensitive trading environments.\n\nuse alloy_primitives::{Address, U256};\nuse chrono::{DateTime, Utc};\nuse rust_decimal::Decimal;\nuse rust_decimal::prelude::ToPrimitive;\nuse serde::{Deserialize, Serialize};\n\n// ============================================================================\n// FIXED-POINT OPTIMIZATION FOR HOT PATH PERFORMANCE\n// ============================================================================\n//\n// Instead of using rust_decimal::Decimal everywhere (which allocates),\n// I've used fixed-point integers for the performance-critical order book operations.\n//\n// Why this matters:\n// - Decimal operations can be 10-100x slower than integer operations\n// - Decimal allocates memory for each calculation\n// - In an order book like this we process thousands of price updates per second\n// - Most prices can be represented as integer ticks (e.g., $0.6543 = 6543 ticks)\n//\n// The strategy:\n// 1. Convert Decimal to fixed-point on ingress (when data comes in)\n// 2. Do all hot-path calculations with integers\n// 3. Convert back to Decimal only at the edges (API responses, user display)\n//\n// This is like how video games handle positions, they use integers internally\n// for speed, but show floating-point coordinates to players.\n/// Each tick represents 0.0001 (1/10,000) of the base unit\n/// Examples:\n/// - $0.6543 = 6543 ticks\n/// - $1.0000 = 10000 ticks  \n/// - $0.0001 = 1 tick (minimum price increment)\n/// \n/// Why u32? \n/// - Can represent prices from $0.0001 to $429,496.7295 (way more than needed)\n/// - Fits in CPU register for fast operations\n/// - No sign bit needed since prices are always positive\npub type Price = u32;\n\n/// Quantity/size represented as fixed-point integer for performance\n/// \n/// Each unit represents 0.0001 (1/10,000) of a token\n/// Examples:\n/// - 100.0 tokens = 1,000,000 units\n/// - 0.0001 tokens = 1 unit (minimum size increment)\n/// \n/// Why i64?\n/// - Can represent quantities from -922,337,203,685.4775 to +922,337,203,685.4775\n/// - Signed because we need to handle both buys (+) and sells (-)\n/// - Large enough for any realistic trading size\npub type Qty = i64;\n\n/// Scale factor for converting between Decimal and fixed-point\n/// \n/// We use 10,000 (1e4) as our scale factor, giving us 4 decimal places of precision.\n/// This is perfect for most prediction markets where prices are between $0.01-$0.99\n/// and we need precision to the nearest $0.0001.\npub const SCALE_FACTOR: i64 = 10_000;\n\n/// Maximum valid price in ticks (prevents overflow)\n/// This represents $429,496.7295 which is way higher than any prediction market price\npub const MAX_PRICE_TICKS: Price = Price::MAX;\n\n/// Minimum valid price in ticks (1 tick = $0.0001)\npub const MIN_PRICE_TICKS: Price = 1;\n\n/// Maximum valid quantity (prevents overflow in calculations)\npub const MAX_QTY: Qty = Qty::MAX / 2; // Leave room for intermediate calculations\n\n// ============================================================================\n// CONVERSION FUNCTIONS BETWEEN DECIMAL AND FIXED-POINT\n// ============================================================================\n//\n// These functions handle the conversion between the external Decimal API\n// and our internal fixed-point representation. They're designed to be fast\n// and handle edge cases gracefully.\n\n/// Convert a Decimal price to fixed-point ticks\n/// \n/// This is called when we receive price data from the API or user input.\n/// We quantize the price to the nearest tick to ensure all prices are\n/// aligned to our internal representation.\n/// \n/// Examples:\n/// - decimal_to_price(Decimal::from_str(\"0.6543\")) = Ok(6543)\n/// - decimal_to_price(Decimal::from_str(\"1.0000\")) = Ok(10000)\n/// - decimal_to_price(Decimal::from_str(\"0.00005\")) = Ok(1) // Rounds up to min tick\npub fn decimal_to_price(decimal: Decimal) -\u003e std::result::Result\u003cPrice, \u0026'static str\u003e {\n    // Convert to fixed-point by multiplying by scale factor\n    let scaled = decimal * Decimal::from(SCALE_FACTOR);\n    \n    // Round to nearest integer (this handles tick alignment automatically)\n    let rounded = scaled.round();\n    \n    // Convert to u64 first to handle the conversion safely\n    let as_u64 = rounded.to_u64().ok_or(\"Price too large or negative\")?;\n    \n    // Check bounds\n    if as_u64 \u003c MIN_PRICE_TICKS as u64 {\n        return Ok(MIN_PRICE_TICKS); // Clamp to minimum\n    }\n    if as_u64 \u003e MAX_PRICE_TICKS as u64 {\n        return Err(\"Price exceeds maximum\");\n    }\n    \n    Ok(as_u64 as Price)\n}\n\n/// Convert fixed-point ticks back to Decimal price\n/// \n/// This is called when we need to return price data to the API or display to users.\n/// It's the inverse of decimal_to_price().\n/// \n/// Examples:\n/// - price_to_decimal(6543) = Decimal::from_str(\"0.6543\")\n/// - price_to_decimal(10000) = Decimal::from_str(\"1.0000\")\npub fn price_to_decimal(ticks: Price) -\u003e Decimal {\n    Decimal::from(ticks) / Decimal::from(SCALE_FACTOR)\n}\n\n/// Convert a Decimal quantity to fixed-point units\n/// \n/// Similar to decimal_to_price but handles signed quantities.\n/// Quantities can be negative (for sells or position changes).\n/// \n/// Examples:\n/// - decimal_to_qty(Decimal::from_str(\"100.0\")) = Ok(1000000)\n/// - decimal_to_qty(Decimal::from_str(\"-50.5\")) = Ok(-505000)\npub fn decimal_to_qty(decimal: Decimal) -\u003e std::result::Result\u003cQty, \u0026'static str\u003e {\n    let scaled = decimal * Decimal::from(SCALE_FACTOR);\n    let rounded = scaled.round();\n    \n    let as_i64 = rounded.to_i64().ok_or(\"Quantity too large\")?;\n    \n    if as_i64.abs() \u003e MAX_QTY {\n        return Err(\"Quantity exceeds maximum\");\n    }\n    \n    Ok(as_i64)\n}\n\n/// Convert fixed-point units back to Decimal quantity\n/// \n/// Examples:\n/// - qty_to_decimal(1000000) = Decimal::from_str(\"100.0\")\n/// - qty_to_decimal(-505000) = Decimal::from_str(\"-50.5\")\npub fn qty_to_decimal(units: Qty) -\u003e Decimal {\n    Decimal::from(units) / Decimal::from(SCALE_FACTOR)\n}\n\n/// Check if a price is properly tick-aligned\n/// \n/// This is used to validate incoming price data. In a well-behaved system,\n/// all prices should already be tick-aligned, but we check anyway to catch\n/// bugs or malicious data.\n/// \n/// A price is tick-aligned if it's an exact multiple of the minimum tick size.\n/// Since we use integer ticks internally, this just checks if the price\n/// converts cleanly to our internal representation.\npub fn is_price_tick_aligned(decimal: Decimal, tick_size_decimal: Decimal) -\u003e bool {\n    // Convert tick size to our internal representation\n    let tick_size_ticks = match decimal_to_price(tick_size_decimal) {\n        Ok(ticks) =\u003e ticks,\n        Err(_) =\u003e return false,\n    };\n    \n    // Convert the price to ticks\n    let price_ticks = match decimal_to_price(decimal) {\n        Ok(ticks) =\u003e ticks,\n        Err(_) =\u003e return false,\n    };\n    \n    // Check if price is a multiple of tick size\n    // If tick_size_ticks is 0, we consider everything aligned (no restrictions)\n    if tick_size_ticks == 0 {\n        return true;\n    }\n    \n    price_ticks % tick_size_ticks == 0\n}\n\n/// Trading side for orders\n#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]\npub enum Side {\n    BUY = 0,\n    SELL = 1,\n}\n\nimpl Side {\n    pub fn as_str(\u0026self) -\u003e \u0026'static str {\n        match self {\n            Side::BUY =\u003e \"BUY\",\n            Side::SELL =\u003e \"SELL\",\n        }\n    }\n\n    pub fn opposite(\u0026self) -\u003e Self {\n        match self {\n            Side::BUY =\u003e Side::SELL,\n            Side::SELL =\u003e Side::BUY,\n        }\n    }\n}\n\n/// Order type specifications\n#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]\npub enum OrderType {\n    GTC,\n    FOK,\n    GTD,\n}\n\nimpl OrderType {\n    pub fn as_str(\u0026self) -\u003e \u0026'static str {\n        match self {\n            OrderType::GTC =\u003e \"GTC\",\n            OrderType::FOK =\u003e \"FOK\",\n            OrderType::GTD =\u003e \"GTD\",\n        }\n    }\n}\n\n/// Order status in the system\n#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]\npub enum OrderStatus {\n    #[serde(rename = \"LIVE\")]\n    Live,\n    #[serde(rename = \"CANCELLED\")]\n    Cancelled,\n    #[serde(rename = \"FILLED\")]\n    Filled,\n    #[serde(rename = \"PARTIAL\")]\n    Partial,\n    #[serde(rename = \"EXPIRED\")]\n    Expired,\n}\n\n/// Market snapshot representing current state\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct MarketSnapshot {\n    pub token_id: String,\n    pub market_id: String,\n    pub timestamp: DateTime\u003cUtc\u003e,\n    pub bid: Option\u003cDecimal\u003e,\n    pub ask: Option\u003cDecimal\u003e,\n    pub mid: Option\u003cDecimal\u003e,\n    pub spread: Option\u003cDecimal\u003e,\n    pub last_price: Option\u003cDecimal\u003e,\n    pub volume_24h: Option\u003cDecimal\u003e,\n}\n\n/// Order book level (price/size pair) - EXTERNAL API VERSION\n/// \n/// This is what we expose to users and serialize to JSON.\n/// It uses Decimal for precision and human readability.\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BookLevel {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size: Decimal,\n}\n\n/// Order book level (price/size pair) - INTERNAL HOT PATH VERSION\n/// \n/// This is what we use internally for maximum performance.\n/// All order book operations use this to avoid Decimal overhead.\n/// \n/// The performance difference is huge:\n/// - BookLevel: ~50ns per operation (Decimal math + allocation)\n/// - FastBookLevel: ~2ns per operation (integer math, no allocation)\n/// \n/// That's a 25x speedup on the critical path\n#[derive(Debug, Clone, Copy, PartialEq, Eq)]\npub struct FastBookLevel {\n    pub price: Price,  // Price in ticks (u32)\n    pub size: Qty,     // Size in fixed-point units (i64)\n}\n\nimpl FastBookLevel {\n    /// Create a new fast book level\n    pub fn new(price: Price, size: Qty) -\u003e Self {\n        Self { price, size }\n    }\n    \n    /// Convert to external BookLevel for API responses\n    /// This is only called at the edges when we need to return data to users\n    pub fn to_book_level(self) -\u003e BookLevel {\n        BookLevel {\n            price: price_to_decimal(self.price),\n            size: qty_to_decimal(self.size),\n        }\n    }\n    \n    /// Create from external BookLevel (with validation)\n    /// This is called when we receive data from the API\n    pub fn from_book_level(level: \u0026BookLevel) -\u003e std::result::Result\u003cSelf, \u0026'static str\u003e {\n        let price = decimal_to_price(level.price)?;\n        let size = decimal_to_qty(level.size)?;\n        Ok(Self::new(price, size))\n    }\n    \n    /// Calculate notional value (price * size) in fixed-point\n    /// Returns the result scaled appropriately to avoid overflow\n    /// \n    /// This is much faster than the Decimal equivalent:\n    /// - Decimal: price.mul(size) -\u003e ~20ns + allocation\n    /// - Fixed-point: (price as i64 * size) / SCALE_FACTOR -\u003e ~1ns, no allocation\n    pub fn notional(self) -\u003e i64 {\n        // Convert price to i64 to avoid overflow in multiplication\n        let price_i64 = self.price as i64;\n        // Multiply and scale back down (we scaled both price and size up by SCALE_FACTOR)\n        (price_i64 * self.size) / SCALE_FACTOR\n    }\n}\n\n/// Full order book state\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct OrderBook {\n    /// Token ID\n    pub token_id: String,\n    /// Timestamp\n    pub timestamp: DateTime\u003cUtc\u003e,\n    /// Bid orders\n    pub bids: Vec\u003cBookLevel\u003e,\n    /// Ask orders\n    pub asks: Vec\u003cBookLevel\u003e,\n    /// Sequence number\n    pub sequence: u64,\n}\n\n/// Order book delta for streaming updates - EXTERNAL API VERSION\n/// \n/// This is what we receive from WebSocket streams and REST API calls.\n/// It uses Decimal for compatibility with external systems.\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct OrderDelta {\n    pub token_id: String,\n    pub timestamp: DateTime\u003cUtc\u003e,\n    pub side: Side,\n    pub price: Decimal,\n    pub size: Decimal, // 0 means remove level\n    pub sequence: u64,\n}\n\n/// Order book delta for streaming updates - INTERNAL HOT PATH VERSION\n/// \n/// This is what we use internally for processing order book updates.\n/// Converting to this format on ingress gives us massive performance gains.\n/// \n/// Why the performance matters:\n/// - We might process 10,000+ deltas per second in active markets\n/// - Each delta triggers multiple calculations (spread, impact, etc.)\n/// - Using integers instead of Decimal can make the difference between\n///   keeping up with the market feed vs falling behind\n#[derive(Debug, Clone, Copy, PartialEq, Eq)]\npub struct FastOrderDelta {\n    pub token_id_hash: u64,    // Hash of token_id for fast lookup (avoids string comparisons)\n    pub timestamp: DateTime\u003cUtc\u003e,\n    pub side: Side,\n    pub price: Price,          // Price in ticks\n    pub size: Qty,             // Size in fixed-point units (0 means remove level)\n    pub sequence: u64,\n}\n\nimpl FastOrderDelta {\n    /// Create from external OrderDelta with validation and tick alignment\n    /// \n    /// This is where we enforce tick alignment - if the incoming price\n    /// doesn't align to valid ticks, we either reject it or round it.\n    /// This prevents bad data from corrupting our order book.\n    pub fn from_order_delta(delta: \u0026OrderDelta, tick_size: Option\u003cDecimal\u003e) -\u003e std::result::Result\u003cSelf, \u0026'static str\u003e {\n        // Validate tick alignment if we have a tick size\n        if let Some(tick_size) = tick_size {\n            if !is_price_tick_aligned(delta.price, tick_size) {\n                return Err(\"Price not aligned to tick size\");\n            }\n        }\n        \n        // Convert to fixed-point with validation\n        let price = decimal_to_price(delta.price)?;\n        let size = decimal_to_qty(delta.size)?;\n        \n        // Hash the token_id for fast lookups\n        // This avoids string comparisons in the hot path\n        let token_id_hash = {\n            use std::collections::hash_map::DefaultHasher;\n            use std::hash::{Hash, Hasher};\n            let mut hasher = DefaultHasher::new();\n            delta.token_id.hash(\u0026mut hasher);\n            hasher.finish()\n        };\n        \n        Ok(Self {\n            token_id_hash,\n            timestamp: delta.timestamp,\n            side: delta.side,\n            price,\n            size,\n            sequence: delta.sequence,\n        })\n    }\n    \n    /// Convert back to external OrderDelta (for API responses)\n    /// We need the original token_id since we only store the hash\n    pub fn to_order_delta(self, token_id: String) -\u003e OrderDelta {\n        OrderDelta {\n            token_id,\n            timestamp: self.timestamp,\n            side: self.side,\n            price: price_to_decimal(self.price),\n            size: qty_to_decimal(self.size),\n            sequence: self.sequence,\n        }\n    }\n    \n    /// Check if this delta removes a level (size is zero)\n    pub fn is_removal(self) -\u003e bool {\n        self.size == 0\n    }\n}\n\n/// Trade execution event\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct FillEvent {\n    pub id: String,\n    pub order_id: String,\n    pub token_id: String,\n    pub side: Side,\n    pub price: Decimal,\n    pub size: Decimal,\n    pub timestamp: DateTime\u003cUtc\u003e,\n    pub maker_address: Address,\n    pub taker_address: Address,\n    pub fee: Decimal,\n}\n\n/// Order creation parameters\n#[derive(Debug, Clone)]\npub struct OrderRequest {\n    pub token_id: String,\n    pub side: Side,\n    pub price: Decimal,\n    pub size: Decimal,\n    pub order_type: OrderType,\n    pub expiration: Option\u003cDateTime\u003cUtc\u003e\u003e,\n    pub client_id: Option\u003cString\u003e,\n}\n\n/// Market order parameters\n#[derive(Debug, Clone)]\npub struct MarketOrderRequest {\n    pub token_id: String,\n    pub side: Side,\n    pub amount: Decimal, // USD amount for buys, token amount for sells\n    pub slippage_tolerance: Option\u003cDecimal\u003e,\n    pub client_id: Option\u003cString\u003e,\n}\n\n/// Order state in the system\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Order {\n    pub id: String,\n    pub token_id: String,\n    pub side: Side,\n    pub price: Decimal,\n    pub original_size: Decimal,\n    pub filled_size: Decimal,\n    pub remaining_size: Decimal,\n    pub status: OrderStatus,\n    pub order_type: OrderType,\n    pub created_at: DateTime\u003cUtc\u003e,\n    pub updated_at: DateTime\u003cUtc\u003e,\n    pub expiration: Option\u003cDateTime\u003cUtc\u003e\u003e,\n    pub client_id: Option\u003cString\u003e,\n}\n\n/// API credentials for authentication\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct ApiCredentials {\n    #[serde(rename = \"apiKey\")]\n    pub api_key: String,\n    pub secret: String,\n    pub passphrase: String,\n}\n\nimpl Default for ApiCredentials {\n    fn default() -\u003e Self {\n        Self {\n            api_key: String::new(),\n            secret: String::new(),\n            passphrase: String::new(),\n        }\n    }\n}\n\n/// Configuration for order creation\n#[derive(Debug, Clone)]\npub struct OrderOptions {\n    pub tick_size: Option\u003cDecimal\u003e,\n    pub neg_risk: Option\u003cbool\u003e,\n    pub fee_rate_bps: Option\u003cu32\u003e,\n}\n\n/// Extra arguments for order creation\n#[derive(Debug, Clone)]\npub struct ExtraOrderArgs {\n    pub fee_rate_bps: u32,\n    pub nonce: U256,\n    pub taker: String,\n}\n\nimpl Default for ExtraOrderArgs {\n    fn default() -\u003e Self {\n        Self {\n            fee_rate_bps: 0,\n            nonce: U256::ZERO,\n            taker: \"0x0000000000000000000000000000000000000000\".to_string(),\n        }\n    }\n}\n\n/// Market order arguments\n#[derive(Debug, Clone)]\npub struct MarketOrderArgs {\n    pub token_id: String,\n    pub amount: Decimal,\n}\n\n/// Signed order request ready for submission\n#[derive(Debug, Clone, Serialize, Deserialize)]\n#[serde(rename_all = \"camelCase\")]\npub struct SignedOrderRequest {\n    pub salt: u64,\n    pub maker: String,\n    pub signer: String,\n    pub taker: String,\n    pub token_id: String,\n    pub maker_amount: String,\n    pub taker_amount: String,\n    pub expiration: String,\n    pub nonce: String,\n    pub fee_rate_bps: String,\n    pub side: String,\n    pub signature_type: u8,\n    pub signature: String,\n}\n\n/// Post order wrapper\n#[derive(Debug, Serialize)]\n#[serde(rename_all = \"camelCase\")]\npub struct PostOrder {\n    pub order: SignedOrderRequest,\n    pub owner: String,\n    pub order_type: OrderType,\n}\n\nimpl PostOrder {\n    pub fn new(order: SignedOrderRequest, owner: String, order_type: OrderType) -\u003e Self {\n        Self {\n            order,\n            owner,\n            order_type,\n        }\n    }\n}\n\n/// Market information\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Market {\n    pub condition_id: String,\n    pub tokens: [Token; 2],\n    pub rewards: Rewards,\n    pub min_incentive_size: Option\u003cString\u003e,\n    pub max_incentive_spread: Option\u003cString\u003e,\n    pub active: bool,\n    pub closed: bool,\n    pub question_id: String,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub minimum_order_size: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub minimum_tick_size: Decimal,\n    pub description: String,\n    pub category: Option\u003cString\u003e,\n    pub end_date_iso: Option\u003cString\u003e,\n    pub game_start_time: Option\u003cString\u003e,\n    pub question: String,\n    pub market_slug: String,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub seconds_delay: Decimal,\n    pub icon: String,\n    pub fpmm: String,\n}\n\n/// Token information within a market\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Token {\n    pub token_id: String,\n    pub outcome: String,\n}\n\n/// Client configuration for PolyfillClient\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct ClientConfig {\n    /// Base URL for the API\n    pub base_url: String,\n    /// Chain ID for the network\n    pub chain_id: u64,\n    /// Private key for signing (optional)\n    pub private_key: Option\u003cString\u003e,\n    /// API credentials (optional)\n    pub api_credentials: Option\u003cApiCredentials\u003e,\n    /// Maximum slippage tolerance\n    pub max_slippage: Option\u003cDecimal\u003e,\n    /// Fee rate in basis points\n    pub fee_rate: Option\u003cDecimal\u003e,\n    /// Request timeout\n    pub timeout: Option\u003cstd::time::Duration\u003e,\n    /// Maximum number of connections\n    pub max_connections: Option\u003cusize\u003e,\n}\n\nimpl Default for ClientConfig {\n    fn default() -\u003e Self {\n        Self {\n            base_url: \"https://clob.polymarket.com\".to_string(),\n            chain_id: 137, // Polygon mainnet\n            private_key: None,\n            api_credentials: None,\n            timeout: Some(std::time::Duration::from_secs(30)),\n            max_connections: Some(100),\n            max_slippage: None,\n            fee_rate: None,\n        }\n    }\n}\n\n/// WebSocket authentication for Polymarket API\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct WssAuth {\n    /// User's Ethereum address\n    pub address: String,\n    /// EIP-712 signature\n    pub signature: String,\n    /// Unix timestamp\n    pub timestamp: u64,\n    /// Nonce for replay protection\n    pub nonce: String,\n}\n\n/// WebSocket subscription request\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct WssSubscription {\n    /// Authentication information\n    pub auth: WssAuth,\n    /// Array of markets (condition IDs) for USER channel\n    pub markets: Option\u003cVec\u003cString\u003e\u003e,\n    /// Array of asset IDs (token IDs) for MARKET channel\n    pub asset_ids: Option\u003cVec\u003cString\u003e\u003e,\n    /// Channel type: \"USER\" or \"MARKET\"\n    #[serde(rename = \"type\")]\n    pub channel_type: String,\n}\n\n/// WebSocket message types for streaming\n#[derive(Debug, Clone, Serialize, Deserialize)]\n#[serde(tag = \"type\")]\npub enum StreamMessage {\n    #[serde(rename = \"book_update\")]\n    BookUpdate {\n        data: OrderDelta,\n    },\n    #[serde(rename = \"trade\")]\n    Trade {\n        data: FillEvent,\n    },\n    #[serde(rename = \"order_update\")]\n    OrderUpdate {\n        data: Order,\n    },\n    #[serde(rename = \"heartbeat\")]\n    Heartbeat {\n        timestamp: DateTime\u003cUtc\u003e,\n    },\n    /// User channel events\n    #[serde(rename = \"user_order_update\")]\n    UserOrderUpdate {\n        data: Order,\n    },\n    #[serde(rename = \"user_trade\")]\n    UserTrade {\n        data: FillEvent,\n    },\n    /// Market channel events\n    #[serde(rename = \"market_book_update\")]\n    MarketBookUpdate {\n        data: OrderDelta,\n    },\n    #[serde(rename = \"market_trade\")]\n    MarketTrade {\n        data: FillEvent,\n    },\n}\n\n/// Subscription parameters for streaming\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Subscription {\n    pub token_ids: Vec\u003cString\u003e,\n    pub channels: Vec\u003cString\u003e,\n}\n\n/// WebSocket channel types\n#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]\npub enum WssChannelType {\n    #[serde(rename = \"USER\")]\n    User,\n    #[serde(rename = \"MARKET\")]\n    Market,\n}\n\nimpl WssChannelType {\n    pub fn as_str(\u0026self) -\u003e \u0026'static str {\n        match self {\n            WssChannelType::User =\u003e \"USER\",\n            WssChannelType::Market =\u003e \"MARKET\",\n        }\n    }\n}\n\n/// Price quote response\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Quote {\n    pub token_id: String,\n    pub side: Side,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    pub timestamp: DateTime\u003cUtc\u003e,\n}\n\n/// Balance information\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Balance {\n    pub token_id: String,\n    pub available: Decimal,\n    pub locked: Decimal,\n    pub total: Decimal,\n}\n\n/// Performance metrics for monitoring\n#[derive(Debug, Clone)]\npub struct Metrics {\n    pub orders_per_second: f64,\n    pub avg_latency_ms: f64,\n    pub error_rate: f64,\n    pub uptime_pct: f64,\n}\n\n// Type aliases for common patterns\npub type TokenId = String;\npub type OrderId = String;\npub type MarketId = String;\npub type ClientId = String;\n\n\n/// Parameters for querying open orders\n#[derive(Debug, Clone)]\npub struct OpenOrderParams {\n    pub id: Option\u003cString\u003e,\n    pub asset_id: Option\u003cString\u003e,\n    pub market: Option\u003cString\u003e,\n}\n\nimpl OpenOrderParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, \u0026String)\u003e {\n        let mut params = Vec::with_capacity(3);\n\n        if let Some(x) = \u0026self.id {\n            params.push((\"id\", x));\n        }\n\n        if let Some(x) = \u0026self.asset_id {\n            params.push((\"asset_id\", x));\n        }\n\n        if let Some(x) = \u0026self.market {\n            params.push((\"market\", x));\n        }\n        params\n    }\n}\n\n/// Parameters for querying trades\n#[derive(Debug, Clone)]\npub struct TradeParams {\n    pub id: Option\u003cString\u003e,\n    pub maker_address: Option\u003cString\u003e,\n    pub market: Option\u003cString\u003e,\n    pub asset_id: Option\u003cString\u003e,\n    pub before: Option\u003cu64\u003e,\n    pub after: Option\u003cu64\u003e,\n}\n\nimpl TradeParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, String)\u003e {\n        let mut params = Vec::with_capacity(6);\n\n        if let Some(x) = \u0026self.id {\n            params.push((\"id\", x.clone()));\n        }\n\n        if let Some(x) = \u0026self.asset_id {\n            params.push((\"asset_id\", x.clone()));\n        }\n\n        if let Some(x) = \u0026self.market {\n            params.push((\"market\", x.clone()));\n        }\n        \n        if let Some(x) = \u0026self.maker_address {\n            params.push((\"maker_address\", x.clone()));\n        }\n        \n        if let Some(x) = \u0026self.before {\n            params.push((\"before\", x.to_string()));\n        }\n        \n        if let Some(x) = \u0026self.after {\n            params.push((\"after\", x.to_string()));\n        }\n        \n        params\n    }\n}\n\n/// Open order information\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct OpenOrder {\n    pub associate_trades: Vec\u003cString\u003e,\n    pub id: String,\n    pub status: String,\n    pub market: String,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub original_size: Decimal,\n    pub outcome: String,\n    pub maker_address: String,\n    pub owner: String,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    pub side: Side,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size_matched: Decimal,\n    pub asset_id: String,\n    #[serde(deserialize_with = \"crate::decode::deserializers::number_from_string\")]\n    pub expiration: u64,\n    #[serde(rename = \"type\")]\n    pub order_type: OrderType,\n    #[serde(deserialize_with = \"crate::decode::deserializers::number_from_string\")]\n    pub created_at: u64,\n}\n\n\n/// Balance allowance information\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BalanceAllowance {\n    pub asset_id: String,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub balance: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub allowance: Decimal,\n}\n\n/// Parameters for balance allowance queries (from reference implementation)\n#[derive(Default)]\npub struct BalanceAllowanceParams {\n    pub asset_type: Option\u003cAssetType\u003e,\n    pub token_id: Option\u003cString\u003e,\n    pub signature_type: Option\u003cu8\u003e,\n}\n\nimpl BalanceAllowanceParams {\n    pub fn to_query_params(\u0026self) -\u003e Vec\u003c(\u0026str, String)\u003e {\n        let mut params = Vec::with_capacity(3);\n\n        if let Some(x) = \u0026self.asset_type {\n            params.push((\"asset_type\", x.to_string()));\n        }\n\n        if let Some(x) = \u0026self.token_id {\n            params.push((\"token_id\", x.to_string()));\n        }\n\n        if let Some(x) = \u0026self.signature_type {\n            params.push((\"signature_type\", x.to_string()));\n        }\n        params\n    }\n\n    pub fn set_signature_type(\u0026mut self, s: u8) {\n        self.signature_type = Some(s);\n    }\n}\n\n/// Asset type enum for balance allowance queries\npub enum AssetType {\n    COLLATERAL,\n    CONDITIONAL,\n}\n\nimpl ToString for AssetType {\n    fn to_string(\u0026self) -\u003e String {\n        match self {\n            AssetType::COLLATERAL =\u003e \"COLLATERAL\".to_string(),\n            AssetType::CONDITIONAL =\u003e \"CONDITIONAL\".to_string(),\n        }\n    }\n}\n\n/// Notification preferences\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct NotificationParams {\n    pub signature: String,\n    pub timestamp: u64,\n}\n\n/// Batch midpoint request\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BatchMidpointRequest {\n    pub token_ids: Vec\u003cString\u003e,\n}\n\n/// Batch midpoint response\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BatchMidpointResponse {\n    pub midpoints: std::collections::HashMap\u003cString, Option\u003cDecimal\u003e\u003e,\n}\n\n/// Batch price request\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BatchPriceRequest {\n    pub token_ids: Vec\u003cString\u003e,\n}\n\n/// Price information for a token\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct TokenPrice {\n    pub token_id: String,\n    #[serde(skip_serializing_if = \"Option::is_none\")]\n    pub bid: Option\u003cDecimal\u003e,\n    #[serde(skip_serializing_if = \"Option::is_none\")]\n    pub ask: Option\u003cDecimal\u003e,\n    #[serde(skip_serializing_if = \"Option::is_none\")]\n    pub mid: Option\u003cDecimal\u003e,\n}\n\n/// Batch price response\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct BatchPriceResponse {\n    pub prices: Vec\u003cTokenPrice\u003e,\n}\n\n// Additional types for API compatibility with reference implementation\n#[derive(Debug, Deserialize)]\npub struct ApiKeysResponse {\n    #[serde(rename = \"apiKeys\")]\n    pub api_keys: Vec\u003cString\u003e,\n}\n\n#[derive(Debug, Deserialize)]\npub struct MidpointResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub mid: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct PriceResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct SpreadResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub spread: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct TickSizeResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub minimum_tick_size: Decimal,\n}\n\n#[derive(Debug, Deserialize)]\npub struct NegRiskResponse {\n    pub neg_risk: bool,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct BookParams {\n    pub token_id: String,\n    pub side: Side,\n}\n\n#[derive(Debug, Deserialize)]\npub struct OrderBookSummary {\n    pub market: String,\n    pub asset_id: String,\n    pub hash: String,\n    #[serde(deserialize_with = \"crate::decode::deserializers::number_from_string\")]\n    pub timestamp: u64,\n    pub bids: Vec\u003cOrderSummary\u003e,\n    pub asks: Vec\u003cOrderSummary\u003e,\n}\n\n#[derive(Debug, Deserialize)]\npub struct OrderSummary {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub price: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub size: Decimal,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct MarketsResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub limit: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub count: Decimal,\n    pub next_cursor: Option\u003cString\u003e,\n    pub data: Vec\u003cMarket\u003e,\n}\n\n#[derive(Debug, Serialize, Deserialize)]\npub struct SimplifiedMarketsResponse {\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub limit: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub count: Decimal,\n    pub next_cursor: Option\u003cString\u003e,\n    pub data: Vec\u003cSimplifiedMarket\u003e,\n}\n\n/// Simplified market structure for batch operations\n#[derive(Debug, Serialize, Deserialize)]\npub struct SimplifiedMarket {\n    pub condition_id: String,\n    pub tokens: [Token; 2],\n    pub rewards: Rewards,\n    pub min_incentive_size: Option\u003cString\u003e,\n    pub max_incentive_spread: Option\u003cString\u003e,\n    pub active: bool,\n    pub closed: bool,\n}\n\n/// Rewards structure for markets\n#[derive(Debug, Clone, Serialize, Deserialize)]\npub struct Rewards {\n    pub rates: Option\u003cserde_json::Value\u003e,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub min_size: Decimal,\n    #[serde(with = \"rust_decimal::serde::str\")]\n    pub max_spread: Decimal,\n    pub event_start_date: Option\u003cString\u003e,\n    pub event_end_date: Option\u003cString\u003e,\n    #[serde(skip_serializing_if = \"Option::is_none\")]\n    pub in_game_multiplier: Option\u003cDecimal\u003e,\n    #[serde(skip_serializing_if = \"Option::is_none\")]\n    pub reward_epoch: Option\u003cDecimal\u003e,\n}\n\n// For compatibility with reference implementation\npub type ClientResult\u003cT\u003e = anyhow::Result\u003cT\u003e;\n\n/// Result type used throughout the client\npub type Result\u003cT\u003e = std::result::Result\u003cT, crate::errors::PolyfillError\u003e; 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Utility functions for the Polymarket client\n//!\n//! This module contains optimized utility functions for performance-critical\n//! operations in trading environments.\n\nuse crate::errors::{PolyfillError, Result};\nuse alloy_primitives::{Address, U256};\nuse base64::{engine::general_purpose::URL_SAFE, Engine};\nuse chrono::{DateTime, Utc};\nuse hmac::{Hmac, Mac};\nuse rust_decimal::Decimal;\nuse serde::Serialize;\nuse sha2::Sha256;\nuse std::str::FromStr;\nuse std::time::{Duration, SystemTime, UNIX_EPOCH};\nuse ::url::Url;\n\ntype HmacSha256 = Hmac\u003cSha256\u003e;\n\n/// High-precision timestamp utilities\npub mod time {\n    use super::*;\n\n    /// Get current Unix timestamp in seconds\n    #[inline]\n    pub fn now_secs() -\u003e u64 {\n        SystemTime::now()\n            .duration_since(UNIX_EPOCH)\n            .expect(\"Time went backwards\")\n            .as_secs()\n    }\n\n    /// Get current Unix timestamp in milliseconds\n    #[inline]\n    pub fn now_millis() -\u003e u64 {\n        SystemTime::now()\n            .duration_since(UNIX_EPOCH)\n            .expect(\"Time went backwards\")\n            .as_millis() as u64\n    }\n\n    /// Get current Unix timestamp in microseconds\n    #[inline]\n    pub fn now_micros() -\u003e u64 {\n        SystemTime::now()\n            .duration_since(UNIX_EPOCH)\n            .expect(\"Time went backwards\")\n            .as_micros() as u64\n    }\n\n    /// Get current Unix timestamp in nanoseconds\n    #[inline]\n    pub fn now_nanos() -\u003e u128 {\n        SystemTime::now()\n            .duration_since(UNIX_EPOCH)\n            .expect(\"Time went backwards\")\n            .as_nanos()\n    }\n\n    /// Convert DateTime to Unix timestamp in seconds\n    #[inline]\n    pub fn datetime_to_secs(dt: DateTime\u003cUtc\u003e) -\u003e u64 {\n        dt.timestamp() as u64\n    }\n\n    /// Convert Unix timestamp to DateTime\n    #[inline]\n    pub fn secs_to_datetime(timestamp: u64) -\u003e DateTime\u003cUtc\u003e {\n        DateTime::from_timestamp(timestamp as i64, 0)\n            .unwrap_or_else(|| Utc::now())\n    }\n}\n\n/// Cryptographic utilities for signing and authentication\npub mod crypto {\n    use super::*;\n\n    /// Build HMAC-SHA256 signature for API authentication\n    pub fn build_hmac_signature\u003cT\u003e(\n        secret: \u0026str,\n        timestamp: u64,\n        method: \u0026str,\n        path: \u0026str,\n        body: Option\u003c\u0026T\u003e,\n    ) -\u003e Result\u003cString\u003e\n    where\n        T: ?Sized + Serialize,\n    {\n        let decoded = URL_SAFE\n            .decode(secret)\n            .map_err(|e| PolyfillError::config(format!(\"Invalid secret format: {}\", e)))?;\n\n        let message = match body {\n            None =\u003e format!(\"{timestamp}{method}{path}\"),\n            Some(data) =\u003e {\n                let json = serde_json::to_string(data)?;\n                format!(\"{timestamp}{method}{path}{json}\")\n            }\n        };\n\n        let mut mac = HmacSha256::new_from_slice(\u0026decoded)\n            .map_err(|e| PolyfillError::internal(\"HMAC initialization failed\", e))?;\n        \n        mac.update(message.as_bytes());\n        let result = mac.finalize();\n\n        Ok(URL_SAFE.encode(result.into_bytes()))\n    }\n\n    /// Generate a secure random nonce\n    pub fn generate_nonce() -\u003e U256 {\n        use rand::RngCore;\n        let mut rng = rand::thread_rng();\n        let mut bytes = [0u8; 32];\n        rng.fill_bytes(\u0026mut bytes);\n        U256::from_be_bytes(bytes)\n    }\n\n    /// Generate a secure random salt\n    pub fn generate_salt() -\u003e u64 {\n        use rand::RngCore;\n        let mut rng = rand::thread_rng();\n        rng.next_u64()\n    }\n}\n\n/// Price and size calculation utilities\npub mod math {\n    use super::*;\n    use rust_decimal::prelude::*;\n    use crate::types::{Price, Qty, SCALE_FACTOR};\n\n    // ========================================================================\n    // LEGACY DECIMAL FUNCTIONS (for backward compatibility)\n    // ========================================================================\n    // \n    // These are kept for API compatibility, but internally we should use\n    // the fixed-point versions below for better performance.\n\n    /// Round price to tick size (LEGACY - use fixed-point version when possible)\n    #[inline]\n    pub fn round_to_tick(price: Decimal, tick_size: Decimal) -\u003e Decimal {\n        if tick_size.is_zero() {\n            return price;\n        }\n        (price / tick_size).round() * tick_size\n    }\n\n    /// Calculate notional value (price * size) (LEGACY - use fixed-point version when possible)\n    #[inline]\n    pub fn notional(price: Decimal, size: Decimal) -\u003e Decimal {\n        price * size\n    }\n\n    /// Calculate spread as percentage (LEGACY - use fixed-point version when possible)\n    #[inline]\n    pub fn spread_pct(bid: Decimal, ask: Decimal) -\u003e Option\u003cDecimal\u003e {\n        if bid.is_zero() || ask \u003c= bid {\n            return None;\n        }\n        Some((ask - bid) / bid * Decimal::from(100))\n    }\n\n    /// Calculate mid price (LEGACY - use fixed-point version when possible)\n    #[inline]\n    pub fn mid_price(bid: Decimal, ask: Decimal) -\u003e Option\u003cDecimal\u003e {\n        if bid.is_zero() || ask.is_zero() || ask \u003c= bid {\n            return None;\n        }\n        Some((bid + ask) / Decimal::from(2))\n    }\n\n    // ========================================================================\n    // HIGH-PERFORMANCE FIXED-POINT FUNCTIONS\n    // ========================================================================\n    //\n    // These functions operate on our internal Price/Qty types and are\n    // optimized for maximum performance. They avoid all Decimal operations\n    // and memory allocations.\n    //\n    // Performance comparison (approximate):\n    // - Decimal operations: 20-100ns + allocation overhead\n    // - Fixed-point operations: 1-5ns, no allocations\n    //\n    // That's a 10-50x speedup on the critical path!\n\n    /// Round price to tick size (FAST VERSION)\n    /// \n    /// This is much faster than the Decimal version because it's just\n    /// integer division and multiplication.\n    /// \n    /// Example: round_to_tick_fast(6543, 10) = 6540 (rounds to nearest 10 ticks)\n    #[inline]\n    pub fn round_to_tick_fast(price_ticks: Price, tick_size_ticks: Price) -\u003e Price {\n        if tick_size_ticks == 0 {\n            return price_ticks;\n        }\n        // Integer division automatically truncates, then multiply back\n        // For proper rounding, we add half the tick size before dividing\n        let half_tick = tick_size_ticks / 2;\n        ((price_ticks + half_tick) / tick_size_ticks) * tick_size_ticks\n    }\n\n    /// Calculate notional value (price * size) (FAST VERSION)\n    /// \n    /// Returns the result in the same scale as our quantities.\n    /// This avoids the expensive Decimal multiplication.\n    /// \n    /// Example: notional_fast(6543, 1000000) = 6543000000 (representing $654.30)\n    #[inline]\n    pub fn notional_fast(price_ticks: Price, size_units: Qty) -\u003e i64 {\n        // Convert price to i64 to avoid overflow\n        let price_i64 = price_ticks as i64;\n        // Multiply and scale appropriately\n        // Both price and size are scaled by SCALE_FACTOR, so result is scaled by SCALE_FACTOR^2\n        // We divide by SCALE_FACTOR to get back to normal scale\n        (price_i64 * size_units) / SCALE_FACTOR\n    }\n\n    /// Calculate spread as percentage (FAST VERSION)\n    /// \n    /// Returns the spread as a percentage in basis points (1/100th of a percent).\n    /// This avoids floating-point arithmetic entirely.\n    /// \n    /// Example: spread_pct_fast(6500, 6700) = Some(307) (representing 3.07%)\n    #[inline]\n    pub fn spread_pct_fast(bid_ticks: Price, ask_ticks: Price) -\u003e Option\u003cu32\u003e {\n        if bid_ticks == 0 || ask_ticks \u003c= bid_ticks {\n            return None;\n        }\n        \n        let spread = ask_ticks - bid_ticks;\n        // Calculate percentage in basis points (multiply by 10000 for 4 decimal places)\n        // We use u64 for intermediate calculation to avoid overflow\n        let spread_bps = ((spread as u64) * 10000) / (bid_ticks as u64);\n        \n        // Convert back to u32 (should always fit since spreads are typically small)\n        Some(spread_bps as u32)\n    }\n\n    /// Calculate mid price (FAST VERSION)\n    /// \n    /// Returns the midpoint between bid and ask in ticks.\n    /// Much faster than the Decimal version.\n    /// \n    /// Example: mid_price_fast(6500, 6700) = Some(6600)\n    #[inline]\n    pub fn mid_price_fast(bid_ticks: Price, ask_ticks: Price) -\u003e Option\u003cPrice\u003e {\n        if bid_ticks == 0 || ask_ticks == 0 || ask_ticks \u003c= bid_ticks {\n            return None;\n        }\n        \n        // Use u64 to avoid overflow in addition\n        let sum = (bid_ticks as u64) + (ask_ticks as u64);\n        Some((sum / 2) as Price)\n    }\n\n    /// Calculate spread in ticks (FAST VERSION)\n    /// \n    /// Simple subtraction - much faster than Decimal operations.\n    /// \n    /// Example: spread_fast(6500, 6700) = Some(200) (representing $0.02 spread)\n    #[inline]\n    pub fn spread_fast(bid_ticks: Price, ask_ticks: Price) -\u003e Option\u003cPrice\u003e {\n        if ask_ticks \u003c= bid_ticks {\n            return None;\n        }\n        Some(ask_ticks - bid_ticks)\n    }\n\n    /// Check if price is within valid range (FAST VERSION)\n    /// \n    /// Much faster than converting to Decimal and back.\n    /// \n    /// Example: is_valid_price_fast(6543, 1, 10000) = true\n    #[inline]\n    pub fn is_valid_price_fast(price_ticks: Price, min_tick: Price, max_tick: Price) -\u003e bool {\n        price_ticks \u003e= min_tick \u0026\u0026 price_ticks \u003c= max_tick\n    }\n\n    /// Convert decimal to token units (6 decimal places)\n    #[inline]\n    pub fn decimal_to_token_units(amount: Decimal) -\u003e u64 {\n        let scaled = amount * Decimal::from(1_000_000);\n        scaled.to_u64().unwrap_or(0)\n    }\n\n    /// Convert token units back to decimal\n    #[inline]\n    pub fn token_units_to_decimal(units: u64) -\u003e Decimal {\n        Decimal::from(units) / Decimal::from(1_000_000)\n    }\n\n    /// Check if price is within valid range [tick_size, 1-tick_size]\n    #[inline]\n    pub fn is_valid_price(price: Decimal, tick_size: Decimal) -\u003e bool {\n        price \u003e= tick_size \u0026\u0026 price \u003c= (Decimal::ONE - tick_size)\n    }\n\n    /// Calculate maximum slippage for market order\n    pub fn calculate_slippage(\n        target_price: Decimal,\n        executed_price: Decimal,\n        side: crate::types::Side,\n    ) -\u003e Decimal {\n        match side {\n            crate::types::Side::BUY =\u003e {\n                if executed_price \u003e target_price {\n                    (executed_price - target_price) / target_price\n                } else {\n                    Decimal::ZERO\n                }\n            }\n            crate::types::Side::SELL =\u003e {\n                if executed_price \u003c target_price {\n                    (target_price - executed_price) / target_price\n                } else {\n                    Decimal::ZERO\n                }\n            }\n        }\n    }\n}\n\n/// Network and retry utilities\npub mod retry {\n    use super::*;\n    use std::future::Future;\n    use tokio::time::{sleep, Duration};\n\n    /// Exponential backoff configuration\n    #[derive(Debug, Clone)]\n    pub struct RetryConfig {\n        pub max_attempts: usize,\n        pub initial_delay: Duration,\n        pub max_delay: Duration,\n        pub backoff_factor: f64,\n        pub jitter: bool,\n    }\n\n    impl Default for RetryConfig {\n        fn default() -\u003e Self {\n            Self {\n                max_attempts: 3,\n                initial_delay: Duration::from_millis(100),\n                max_delay: Duration::from_secs(10),\n                backoff_factor: 2.0,\n                jitter: true,\n            }\n        }\n    }\n\n    /// Retry a future with exponential backoff\n    pub async fn with_retry\u003cF, Fut, T\u003e(\n        config: \u0026RetryConfig,\n        mut operation: F,\n    ) -\u003e Result\u003cT\u003e\n    where\n        F: FnMut() -\u003e Fut,\n        Fut: Future\u003cOutput = Result\u003cT\u003e\u003e,\n    {\n        let mut delay = config.initial_delay;\n        let mut last_error = None;\n\n        for attempt in 0..config.max_attempts {\n            match operation().await {\n                Ok(result) =\u003e return Ok(result),\n                Err(err) =\u003e {\n                    last_error = Some(err.clone());\n                    \n                    if !err.is_retryable() || attempt == config.max_attempts - 1 {\n                        return Err(err);\n                    }\n\n                    // Add jitter if enabled\n                    let actual_delay = if config.jitter {\n                        let jitter_factor = rand::random::\u003cf64\u003e() * 0.1; // ±10%\n                        let jitter = 1.0 + (jitter_factor - 0.05);\n                        Duration::from_nanos((delay.as_nanos() as f64 * jitter) as u64)\n                    } else {\n                        delay\n                    };\n\n                    sleep(actual_delay).await;\n\n                    // Exponential backoff\n                    delay = std::cmp::min(\n                        Duration::from_nanos((delay.as_nanos() as f64 * config.backoff_factor) as u64),\n                        config.max_delay,\n                    );\n                }\n            }\n        }\n\n        Err(last_error.unwrap_or_else(|| PolyfillError::internal(\"Retry loop failed\", std::io::Error::new(std::io::ErrorKind::Other, \"No error captured\"))))\n    }\n}\n\n/// Address and token ID utilities\npub mod address {\n    use super::*;\n\n    /// Validate and parse Ethereum address\n    pub fn parse_address(addr: \u0026str) -\u003e Result\u003cAddress\u003e {\n        Address::from_str(addr)\n            .map_err(|e| PolyfillError::validation(format!(\"Invalid address format: {}\", e)))\n    }\n\n    /// Validate token ID format\n    pub fn validate_token_id(token_id: \u0026str) -\u003e Result\u003c()\u003e {\n        if token_id.is_empty() {\n            return Err(PolyfillError::validation(\"Token ID cannot be empty\"));\n        }\n\n        // Token IDs should be numeric strings\n        if !token_id.chars().all(|c| c.is_ascii_digit()) {\n            return Err(PolyfillError::validation(\"Token ID must be numeric\"));\n        }\n\n        Ok(())\n    }\n\n    /// Convert token ID to U256\n    pub fn token_id_to_u256(token_id: \u0026str) -\u003e Result\u003cU256\u003e {\n        validate_token_id(token_id)?;\n        U256::from_str_radix(token_id, 10)\n            .map_err(|e| PolyfillError::validation(format!(\"Invalid token ID: {}\", e)))\n    }\n}\n\n/// URL building utilities\npub mod url {\n    use super::*;\n\n    /// Build API endpoint URL\n    pub fn build_endpoint(base_url: \u0026str, path: \u0026str) -\u003e Result\u003cString\u003e {\n        let base = base_url.trim_end_matches('/');\n        let path = path.trim_start_matches('/');\n        Ok(format!(\"{}/{}\", base, path))\n    }\n\n    /// Add query parameters to URL\n    pub fn add_query_params(\n        mut url: url::Url,\n        params: \u0026[(\u0026str, \u0026str)],\n    ) -\u003e url::Url {\n        {\n            let mut query_pairs = url.query_pairs_mut();\n            for (key, value) in params {\n                query_pairs.append_pair(key, value);\n            }\n        }\n        url\n    }\n}\n\n/// Rate limiting utilities\npub mod rate_limit {\n    use super::*;\n    use std::sync::{Arc, Mutex};\n\n    /// Simple token bucket rate limiter\n    #[derive(Debug)]\n    pub struct TokenBucket {\n        capacity: usize,\n        tokens: Arc\u003cMutex\u003cusize\u003e\u003e,\n        refill_rate: Duration,\n        last_refill: Arc\u003cMutex\u003cSystemTime\u003e\u003e,\n    }\n\n    impl TokenBucket {\n        pub fn new(capacity: usize, refill_per_second: usize) -\u003e Self {\n            Self {\n                capacity,\n                tokens: Arc::new(Mutex::new(capacity)),\n                refill_rate: Duration::from_secs(1) / refill_per_second as u32,\n                last_refill: Arc::new(Mutex::new(SystemTime::now())),\n            }\n        }\n\n        /// Try to consume a token, return true if successful\n        pub fn try_consume(\u0026self) -\u003e bool {\n            self.refill();\n            \n            let mut tokens = self.tokens.lock().unwrap();\n            if *tokens \u003e 0 {\n                *tokens -= 1;\n                true\n            } else {\n                false\n            }\n        }\n\n        fn refill(\u0026self) {\n            let now = SystemTime::now();\n            let mut last_refill = self.last_refill.lock().unwrap();\n            let elapsed = now.duration_since(*last_refill).unwrap_or_default();\n            \n            if elapsed \u003e= self.refill_rate {\n                let tokens_to_add = elapsed.as_nanos() / self.refill_rate.as_nanos();\n                let mut tokens = self.tokens.lock().unwrap();\n                *tokens = std::cmp::min(self.capacity, *tokens + tokens_to_add as usize);\n                *last_refill = now;\n            }\n        }\n    }\n}\n\n#[cfg(test)]\nmod tests {\n    use super::*;\n\n    #[test]\n    fn test_round_to_tick() {\n        use math::round_to_tick;\n        \n        let price = Decimal::from_str(\"0.567\").unwrap();\n        let tick = Decimal::from_str(\"0.01\").unwrap();\n        let rounded = round_to_tick(price, tick);\n        assert_eq!(rounded, Decimal::from_str(\"0.57\").unwrap());\n    }\n\n    #[test]\n    fn test_mid_price() {\n        use math::mid_price;\n        \n        let bid = Decimal::from_str(\"0.50\").unwrap();\n        let ask = Decimal::from_str(\"0.52\").unwrap();\n        let mid = mid_price(bid, ask).unwrap();\n        assert_eq!(mid, Decimal::from_str(\"0.51\").unwrap());\n    }\n\n    #[test]\n    fn test_token_units_conversion() {\n        use math::{decimal_to_token_units, token_units_to_decimal};\n        \n        let amount = Decimal::from_str(\"1.234567\").unwrap();\n        let units = decimal_to_token_units(amount);\n        assert_eq!(units, 1_234_567);\n        \n        let back = token_units_to_decimal(units);\n        assert_eq!(back, amount);\n    }\n\n    #[test]\n    fn test_address_validation() {\n        use address::parse_address;\n        \n        let valid = \"0x1234567890123456789012345678901234567890\";\n        assert!(parse_address(valid).is_ok());\n        \n        let invalid = \"invalid_address\";\n        assert!(parse_address(invalid).is_err());\n    }\n} 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-    e('td', null, e('a', null, pathToString(file.path))),
-    e(
-      'td',
-      null,
-      file.covered + ' / ' + file.coverable + (coverage >= 0 ? ' (' + coverage.toFixed(2) + '%)' : ''),
-      e(
-        'span',
-        {title: 'Change from the previous run'},
-        coverageDelta ? ` (${coverageDelta > 0 ? '+' : ''}${coverageDelta.toFixed(2)}%)` : '',
-      ),
-    ),
-  );
-}
-
-function DisplayFile({file, onBack}) {
-  return e('div', {className: 'display-file'}, e(FileHeader, {file, onBack}), e(FileContent, {file}));
-}
-
-function FileHeader({file, onBack}) {
-  const coverage = (file.covered / file.coverable) * 100;
-  const coverageDelta = file.prevRun && coverage - (file.prevRun.covered / file.prevRun.coverable) * 100;
-
-  return e(
-    'div',
-    {className: 'file-header'},
-    onBack ? e('a', {className: 'file-header__back', onClick: onBack}, 'Back') : null,
-    e('div', {className: 'file-header__name'}, pathToString([...file.parent, ...file.path])),
-    e(
-      'div',
-      {className: 'file-header__stat'},
-      'Covered: ' + file.covered + ' of ' + file.coverable + (file.coverable ? ' (' + coverage.toFixed(2) + '%)' : ''),
-      e(
-        'span',
-        {title: 'Change from the previous run'},
-        coverageDelta ? ` (${coverageDelta > 0 ? '+' : ''}${coverageDelta.toFixed(2)}%)` : '',
-      ),
-      e('input', {id: 'theme-toggle', type: 'checkbox', hidden: true}),
-      e('label', {for: 'theme-toggle', id: 'theme-toggle-label'}, '🌙'),
-    ),
-  );
-}
-
-function FileContent({file}) {
-  return e(
-    'pre',
-    {className: 'file-content'},
-    file.content.split(/\r?\n/).map((line, index) => {
-      const trace = file.traces.find(trace => trace.line === index + 1);
-      const covered = trace && trace.stats.Line;
-      const uncovered = trace && !trace.stats.Line;
-      return e(
-        'code',
-        {
-          className: 'code-line' + (covered ? ' code-line_covered' : '') + (uncovered ? ' code-line_uncovered' : ''),
-          title: trace ? JSON.stringify(trace.stats, null, 2) : null,
-        },
-        line,
-      );
-    }),
-  );
-}
-
-(function () {
-  const commonPath = findCommonPath(data.files);
-  const prevFilesMap = new Map();
-
-  previousData &&
-    previousData.files.forEach(file => {
-      const path = file.path.slice(commonPath.length).join('/');
-      prevFilesMap.set(path, file);
-    });
-
-  const files = data.files.map(file => {
-    const path = file.path.slice(commonPath.length);
-    const {covered = 0, coverable = 0} = prevFilesMap.get(path.join('/')) || {};
-    return {
-      ...file,
-      path,
-      parent: commonPath,
-      prevRun: {covered, coverable},
-    };
-  });
-
-  const children = findFolders(files);
-
-  const root = {
-    is_folder: true,
-    children,
-    path: commonPath,
-    parent: [],
-    covered: children.reduce((sum, file) => sum + file.covered, 0),
-    coverable: children.reduce((sum, file) => sum + file.coverable, 0),
-    prevRun: {
-      covered: children.reduce((sum, file) => sum + file.prevRun.covered, 0),
-      coverable: children.reduce((sum, file) => sum + file.prevRun.coverable, 0),
-    },
-  };
-
-  ReactDOM.render(e(App, {root, prevFilesMap}), document.getElementById('root'));
-
-  const toggle = document.getElementById('theme-toggle');
-  const label = document.getElementById('theme-toggle-label');
-  label.textContent = '🌙';
-
-  toggle.addEventListener('change', () => {
-    if (toggle.checked) {
-      document.documentElement.setAttribute('data-theme', 'dark');
-      label.textContent = '☀️';
-    } else {
-      document.documentElement.removeAttribute('data-theme');
-      label.textContent = '🌙';
-    }
-  });
-})();
-</script>
-</body>
-</html>
\ No newline at end of file