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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 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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 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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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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: 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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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#[error(\"Market data error: {message}\")]\n MarketData { \n message: String,\n kind: MarketDataErrorKind,\n },\n\n /// Configuration errors\n #[error(\"Config error: {message}\")]\n Config { \n message: String,\n },\n\n /// Parsing/serialization errors\n #[error(\"Parse error: {message}\")]\n Parse { \n message: String,\n #[source]\n source: Option\u003cBox\u003cdyn std::error::Error + Send + Sync\u003e\u003e,\n },\n\n /// Timeout errors\n #[error(\"Timeout error: operation timed out after {duration:?}\")]\n Timeout { \n duration: Duration,\n operation: String,\n },\n\n /// Rate limiting errors\n #[error(\"Rate limit exceeded: {message}\")]\n RateLimit { \n message: String,\n retry_after: Option\u003cDuration\u003e,\n },\n\n /// 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: 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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 { .. } =\u003e Some(Duration::from_millis(250)),\n _ =\u003e None,\n }\n }\n\n /// Check if this is a critical error that should stop trading\n pub fn is_critical(\u0026self) -\u003e bool {\n match self {\n PolyfillError::Auth { .. } =\u003e true,\n PolyfillError::Config { .. } =\u003e true,\n PolyfillError::Internal { .. } =\u003e true,\n PolyfillError::Order { kind, .. } =\u003e {\n matches!(kind, OrderErrorKind::InsufficientBalance)\n },\n _ =\u003e false,\n }\n }\n\n /// Get error category for metrics\n pub fn category(\u0026self) -\u003e \u0026'static str {\n match self {\n PolyfillError::Network { .. } =\u003e \"network\",\n PolyfillError::Api { .. } =\u003e \"api\",\n PolyfillError::Auth { .. } =\u003e \"auth\",\n PolyfillError::Order { .. } =\u003e \"order\",\n PolyfillError::MarketData { .. } =\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 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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 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stats":{"Line":0}},{"line":485,"address":[],"length":0,"stats":{"Line":0}},{"line":486,"address":[],"length":0,"stats":{"Line":0}},{"line":488,"address":[],"length":0,"stats":{"Line":0}}],"covered":30,"coverable":182},{"path":["/","Users","juliustranquilli","personal","polyfill-rs","src","lib.rs"],"content":"//! 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 use alloy_primitives::U256;\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 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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 /// 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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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<script>const e = React.createElement;
function pathToString(path) {
if (path[0] === '/') {
return '/' + path.slice(1).join('/');
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}
}
function findCommonPath(files) {
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}
function isPrefix(arr, prefix) {
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function findFolders(files) {
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const children = findFolders(filesInFolder); // recursion
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}
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constructor(...args) {
super(...args);
this.state = {
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}
componentDidMount() {
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}
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},
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}
back(file) {
this.setState(
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},
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);
}
updateHash() {
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window.location = '#' + this.state.current.join('/');
}
}
}
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let files = folder.children;
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e(FileHeader, {file: folder, onBack}),
e(
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e(
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{className: 'files-list__body'},
files.map(file => e(File, {file, onClick: onSelectFile})),
),
),
);
}
function File({file, onClick}) {
const coverage = file.coverable ? (file.covered / file.coverable) * 100 : -1;
const coverageDelta =
file.prevRun && (file.covered / file.coverable) * 100 - (file.prevRun.covered / file.prevRun.coverable) * 100;
return e(
'tr',
{
className:
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(coverage >= 0 && coverage < 50 ? ' files-list__file_low' : '') +
(coverage >= 50 && coverage < 80 ? ' files-list__file_medium' : '') +
(coverage >= 80 ? ' files-list__file_high' : '') +
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onClick: () => onClick(file),
},
e('td', null, e('a', null, pathToString(file.path))),
e(
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null,
file.covered + ' / ' + file.coverable + (coverage >= 0 ? ' (' + coverage.toFixed(2) + '%)' : ''),
e(
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{title: 'Change from the previous run'},
coverageDelta ? ` (${coverageDelta > 0 ? '+' : ''}${coverageDelta.toFixed(2)}%)` : '',
),
),
);
}
function DisplayFile({file, onBack}) {
return e('div', {className: 'display-file'}, e(FileHeader, {file, onBack}), e(FileContent, {file}));
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function FileHeader({file, onBack}) {
const coverage = (file.covered / file.coverable) * 100;
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'div',
{className: 'file-header'},
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e('div', {className: 'file-header__name'}, pathToString([...file.parent, ...file.path])),
e(
'div',
{className: 'file-header__stat'},
'Covered: ' + file.covered + ' of ' + file.coverable + (file.coverable ? ' (' + coverage.toFixed(2) + '%)' : ''),
e(
'span',
{title: 'Change from the previous run'},
coverageDelta ? ` (${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>
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