solana-streamer/README.md

# Solana Streamer
[中文](https://github.com/0xfnzero/solana-streamer/blob/main/README_CN.md) | [English](https://github.com/0xfnzero/solana-streamer/blob/main/README.md) | [Telegram](https://t.me/fnzero_group)

A lightweight Rust library for real-time event streaming from Solana DEX trading programs. This library provides efficient event parsing and subscription capabilities for PumpFun, PumpSwap, Bonk, and Raydium CPMM protocols.

## Project Features

1. **Real-time Event Streaming**: Subscribe to live trading events from multiple Solana DEX protocols
2. **Yellowstone gRPC Support**: High-performance event subscription using Yellowstone gRPC
3. **ShredStream Support**: Alternative event streaming using ShredStream protocol
4. **Multi-Protocol Support**: 
   - **PumpFun**: Meme coin trading platform events
   - **PumpSwap**: PumpFun's swap protocol events
   - **Bonk**: Token launch platform events (letsbonk.fun)
   - **Raydium CPMM**: Raydium's Concentrated Pool Market Maker events
   - **Raydium CLMM**: Raydium's Concentrated Liquidity Market Maker events
   - **Raydium AMM V4**: Raydium's Automated Market Maker V4 events
5. **Unified Event Interface**: Consistent event handling across all supported protocols
6. **Event Parsing System**: Automatic parsing and categorization of protocol-specific events
7. **Account State Monitoring**: Real-time monitoring of protocol account states and configuration changes
8. **Transaction & Account Event Filtering**: Separate filtering for transaction events and account state changes
9. **High Performance**: Optimized for low-latency event processing
10. **Batch Processing Optimization**: Batch processing events to reduce callback overhead
11. **Performance Monitoring**: Built-in performance metrics monitoring, including event processing speed, etc.
12. **Memory Optimization**: Object pooling and caching mechanisms to reduce memory allocations
13. **Flexible Configuration System**: Support for custom batch sizes, backpressure strategies, channel sizes, and other parameters
14. **Preset Configurations**: Provides high-throughput and low-latency preset configurations optimized for different use cases
15. **Backpressure Handling**: Supports blocking and dropping backpressure strategies
16. **Runtime Configuration Updates**: Supports dynamic configuration parameter updates at runtime
17. **Full Function Performance Monitoring**: All subscribe_events functions support performance monitoring, automatically collecting and reporting performance metrics
18. **Graceful Shutdown**: Support for programmatic stop() method for clean shutdown
19. **Dynamic Subscription Management**: Runtime filter updates without reconnection, enabling adaptive monitoring strategies

## Installation

### Direct Clone

Clone this project to your project directory:

```bash
cd your_project_root_directory
git clone https://github.com/0xfnzero/solana-streamer
```

Add the dependency to your `Cargo.toml`:

```toml
# Add to your Cargo.toml
solana-streamer-sdk = { path = "./solana-streamer", version = "0.4.0" }
```

### Use crates.io

```toml
# Add to your Cargo.toml
solana-streamer-sdk = "0.4.0"
```

## Configuration System

### Preset Configurations

The library provides three preset configurations optimized for different use cases:

#### 1. High Throughput Configuration (`high_throughput()`)

Optimized for high-concurrency scenarios, prioritizing throughput over latency:

```rust
let config = StreamClientConfig::high_throughput();
// Or use convenience methods
let grpc = YellowstoneGrpc::new_high_throughput(endpoint, token)?;
let shred = ShredStreamGrpc::new_high_throughput(endpoint).await?;
```

**Features:**
- **Backpressure Strategy**: Drop - drops messages during high load to avoid blocking
- **Buffer Size**: 5,000 permits to handle burst traffic
- **Use Case**: Scenarios where you need to process large volumes of data and can tolerate occasional message drops during peak loads

#### 2. Low Latency Configuration (`low_latency()`)

Optimized for real-time scenarios, prioritizing latency over throughput:

```rust
let config = StreamClientConfig::low_latency();
// Or use convenience methods
let grpc = YellowstoneGrpc::new_low_latency(endpoint, token)?;
let shred = ShredStreamGrpc::new_low_latency(endpoint).await?;
```

**Features:**
- **Backpressure Strategy**: Block - ensures no data loss
- **Buffer Size**: 4000 permits for balanced throughput and latency
- **Immediate Processing**: No buffering, processes events immediately
- **Use Case**: Scenarios where every millisecond counts and you cannot afford to lose any events, such as trading applications or real-time monitoring


### Custom Configuration

You can also create custom configurations:

```rust
let config = StreamClientConfig {
    connection: ConnectionConfig {
        connect_timeout: 30,
        request_timeout: 120,
        max_decoding_message_size: 20 * 1024 * 1024, // 20MB
    },
    backpressure: BackpressureConfig {
        permits: 2000,
        strategy: BackpressureStrategy::Block,
    },
    enable_metrics: true,
};
```

## Usage Examples

### Quick Start - Parse Transaction Events

You can quickly test the library by running the built-in example that parses transaction events:

```bash
cargo run --example parse_tx_events
```

This example demonstrates:
- How to parse transaction data from Solana mainnet using RPC
- Event parsing for multiple protocols (PumpFun, PumpSwap, Bonk, Raydium CPMM/CLMM/AMM V4)
- Transaction details extraction including fees, logs, and compute units

The example uses a predefined transaction signature and shows how to extract protocol-specific events from the transaction data.

### Dynamic Subscription Management Example

Test runtime filter updates without reconnection:

```bash
cargo run --example dynamic_subscription
```

This example demonstrates:
- Creating initial subscriptions with specific protocol filters
- Updating subscription filters at runtime without reconnection
- Single subscription enforcement and proper error handling
- Clean shutdown and resource management

### Advanced Usage - Complete Example

```rust
use solana_streamer_sdk::{
    match_event,
    streaming::{
        event_parser::{
            common::{filter::EventTypeFilter, EventType},
            protocols::{
                bonk::{
                    parser::BONK_PROGRAM_ID, BonkGlobalConfigAccountEvent, BonkMigrateToAmmEvent,
                    BonkMigrateToCpswapEvent, BonkPlatformConfigAccountEvent, BonkPoolCreateEvent,
                    BonkPoolStateAccountEvent, BonkTradeEvent,
                },
                pumpfun::{
                    parser::PUMPFUN_PROGRAM_ID, PumpFunBondingCurveAccountEvent,
                    PumpFunCreateTokenEvent, PumpFunGlobalAccountEvent, PumpFunMigrateEvent,
                    PumpFunTradeEvent,
                },
                pumpswap::{
                    parser::PUMPSWAP_PROGRAM_ID, PumpSwapBuyEvent, PumpSwapCreatePoolEvent,
                    PumpSwapDepositEvent, PumpSwapGlobalConfigAccountEvent,
                    PumpSwapPoolAccountEvent, PumpSwapSellEvent, PumpSwapWithdrawEvent,
                },
                raydium_amm_v4::{
                    parser::RAYDIUM_AMM_V4_PROGRAM_ID, RaydiumAmmV4AmmInfoAccountEvent,
                    RaydiumAmmV4DepositEvent, RaydiumAmmV4Initialize2Event, RaydiumAmmV4SwapEvent,
                    RaydiumAmmV4WithdrawEvent, RaydiumAmmV4WithdrawPnlEvent,
                },
                raydium_clmm::{
                    parser::RAYDIUM_CLMM_PROGRAM_ID, RaydiumClmmAmmConfigAccountEvent,
                    RaydiumClmmClosePositionEvent, RaydiumClmmCreatePoolEvent,
                    RaydiumClmmDecreaseLiquidityV2Event, RaydiumClmmIncreaseLiquidityV2Event,
                    RaydiumClmmOpenPositionV2Event, RaydiumClmmOpenPositionWithToken22NftEvent,
                    RaydiumClmmPoolStateAccountEvent, RaydiumClmmSwapEvent, RaydiumClmmSwapV2Event,
                    RaydiumClmmTickArrayStateAccountEvent,
                },
                raydium_cpmm::{
                    parser::RAYDIUM_CPMM_PROGRAM_ID, RaydiumCpmmAmmConfigAccountEvent,
                    RaydiumCpmmDepositEvent, RaydiumCpmmInitializeEvent,
                    RaydiumCpmmPoolStateAccountEvent, RaydiumCpmmSwapEvent,
                    RaydiumCpmmWithdrawEvent,
                },
                BlockMetaEvent,
            },
            Protocol, UnifiedEvent,
        },
        grpc::ClientConfig,
        shred::StreamClientConfig,
        yellowstone_grpc::{AccountFilter, TransactionFilter},
        ShredStreamGrpc, YellowstoneGrpc,
    },
};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    println!("Starting Solana Streamer...");
    test_grpc().await?;
    test_shreds().await?;
    Ok(())
}

async fn test_grpc() -> Result<(), Box<dyn std::error::Error>> {
    println!("Subscribing to Yellowstone gRPC events...");

    // Create low-latency configuration
    let mut config = ClientConfig::low_latency();
    // Enable performance monitoring, has performance overhead, disabled by default
    config.enable_metrics = true;
    let grpc = YellowstoneGrpc::new_with_config(
        "https://solana-yellowstone-grpc.publicnode.com:443".to_string(),
        None,
        config,
    )?;

    println!("GRPC client created successfully");

    let callback = create_event_callback();

    // Will try to parse corresponding protocol events from transactions
    let protocols = vec![
        Protocol::PumpFun,
        Protocol::PumpSwap,
        Protocol::Bonk,
        Protocol::RaydiumCpmm,
        Protocol::RaydiumClmm,
        Protocol::RaydiumAmmV4,
    ];

    println!("Protocols to monitor: {:?}", protocols);

    // Filter accounts
    let account_include = vec![
        PUMPFUN_PROGRAM_ID.to_string(),        // Listen to pumpfun program ID
        PUMPSWAP_PROGRAM_ID.to_string(),       // Listen to pumpswap program ID
        BONK_PROGRAM_ID.to_string(),           // Listen to bonk program ID
        RAYDIUM_CPMM_PROGRAM_ID.to_string(),   // Listen to raydium_cpmm program ID
        RAYDIUM_CLMM_PROGRAM_ID.to_string(),   // Listen to raydium_clmm program ID
        RAYDIUM_AMM_V4_PROGRAM_ID.to_string(), // Listen to raydium_amm_v4 program ID
    ];
    let account_exclude = vec![];
    let account_required = vec![];

    // Transaction filter for monitoring transaction events
    let transaction_filter = TransactionFilter {
        account_include: account_include.clone(),
        account_exclude,
        account_required,
    };

    // Account filter for monitoring account state changes
    let account_filter = AccountFilter { account: vec![], owner: account_include.clone() };

    // Event type filtering - optional
    // No event filtering, includes all events
    let event_type_filter = None;
    // Only include PumpSwapBuy and PumpSwapSell events
    // let event_type_filter = Some(EventTypeFilter { include: vec![EventType::PumpSwapBuy, EventType::PumpSwapSell] });

    println!("Starting to listen for events, press Ctrl+C to stop...");
    println!("Monitoring programs: {:?}", account_include);

    println!("Starting subscription...");

    grpc.subscribe_events_immediate(
        protocols,
        None,
        transaction_filter,
        account_filter,
        event_type_filter,
        None,
        callback,
    )
    .await?;

    // Support stop method, test code - stop after 1000 seconds asynchronously
    let grpc_clone = grpc.clone();
    tokio::spawn(async move {
        tokio::time::sleep(std::time::Duration::from_secs(1000)).await;
        grpc_clone.stop().await;
    });

    println!("Waiting for Ctrl+C to stop...");
    tokio::signal::ctrl_c().await?;

    Ok(())
}

async fn test_shreds() -> Result<(), Box<dyn std::error::Error>> {
    println!("Subscribing to ShredStream events...");

    // Create low-latency configuration
    let mut config = StreamClientConfig::low_latency();
    // Enable performance monitoring, has performance overhead, disabled by default
    config.enable_metrics = true;
    let shred_stream =
        ShredStreamGrpc::new_with_config("http://127.0.0.1:10800".to_string(), config).await?;

    let callback = create_event_callback();
    let protocols = vec![
        Protocol::PumpFun,
        Protocol::PumpSwap,
        Protocol::Bonk,
        Protocol::RaydiumCpmm,
        Protocol::RaydiumClmm,
        Protocol::RaydiumAmmV4,
    ];

    // Event filtering
    // No event filtering, includes all events
    let event_type_filter = None;
    // Only include PumpSwapBuy events and PumpSwapSell events
    // let event_type_filter =
    //     EventTypeFilter { include: vec![EventType::PumpSwapBuy, EventType::PumpSwapSell] };

    println!("Listening for events, press Ctrl+C to stop...");
    shred_stream.shredstream_subscribe(protocols, None, event_type_filter, callback).await?;

    // Support stop method, test code - stop after 1000 seconds asynchronously
    let shred_clone = shred_stream.clone();
    tokio::spawn(async move {
        tokio::time::sleep(std::time::Duration::from_secs(1000)).await;
        shred_clone.stop().await;
    });

    println!("Waiting for Ctrl+C to stop...");
    tokio::signal::ctrl_c().await?;

    Ok(())
}

fn create_event_callback() -> impl Fn(Box<dyn UnifiedEvent>) {
    |event: Box<dyn UnifiedEvent>| {
        println!("🎉 Event received! Type: {:?}, ID: {}", event.event_type(), event.id());
        match_event!(event, {
            // -------------------------- block meta -----------------------
            BlockMetaEvent => |e: BlockMetaEvent| {
                println!("BlockMetaEvent: {e:?}");
            },
            // -------------------------- bonk -----------------------
            BonkPoolCreateEvent => |e: BonkPoolCreateEvent| {
                // When using grpc, you can get block_time from each event
                println!("block_time: {:?}, block_time_ms: {:?}", e.metadata.block_time, e.metadata.block_time_ms);
                println!("BonkPoolCreateEvent: {:?}", e.base_mint_param.symbol);
            },
            BonkTradeEvent => |e: BonkTradeEvent| {
                println!("BonkTradeEvent: {e:?}");
            },
            BonkMigrateToAmmEvent => |e: BonkMigrateToAmmEvent| {
                println!("BonkMigrateToAmmEvent: {e:?}");
            },
            BonkMigrateToCpswapEvent => |e: BonkMigrateToCpswapEvent| {
                println!("BonkMigrateToCpswapEvent: {e:?}");
            },
            // -------------------------- pumpfun -----------------------
            PumpFunTradeEvent => |e: PumpFunTradeEvent| {
                println!("PumpFunTradeEvent: {e:?}");
            },
            PumpFunMigrateEvent => |e: PumpFunMigrateEvent| {
                println!("PumpFunMigrateEvent: {e:?}");
            },
            PumpFunCreateTokenEvent => |e: PumpFunCreateTokenEvent| {
                println!("PumpFunCreateTokenEvent: {e:?}");
            },
            // -------------------------- pumpswap -----------------------
            PumpSwapBuyEvent => |e: PumpSwapBuyEvent| {
                println!("Buy event: {e:?}");
            },
            PumpSwapSellEvent => |e: PumpSwapSellEvent| {
                println!("Sell event: {e:?}");
            },
            PumpSwapCreatePoolEvent => |e: PumpSwapCreatePoolEvent| {
                println!("CreatePool event: {e:?}");
            },
            PumpSwapDepositEvent => |e: PumpSwapDepositEvent| {
                println!("Deposit event: {e:?}");
            },
            PumpSwapWithdrawEvent => |e: PumpSwapWithdrawEvent| {
                println!("Withdraw event: {e:?}");
            },
            // -------------------------- raydium_cpmm -----------------------
            RaydiumCpmmSwapEvent => |e: RaydiumCpmmSwapEvent| {
                println!("RaydiumCpmmSwapEvent: {e:?}");
            },
            RaydiumCpmmDepositEvent => |e: RaydiumCpmmDepositEvent| {
                println!("RaydiumCpmmDepositEvent: {e:?}");
            },
            RaydiumCpmmInitializeEvent => |e: RaydiumCpmmInitializeEvent| {
                println!("RaydiumCpmmInitializeEvent: {e:?}");
            },
            RaydiumCpmmWithdrawEvent => |e: RaydiumCpmmWithdrawEvent| {
                println!("RaydiumCpmmWithdrawEvent: {e:?}");
            },
            // -------------------------- raydium_clmm -----------------------
            RaydiumClmmSwapEvent => |e: RaydiumClmmSwapEvent| {
                println!("RaydiumClmmSwapEvent: {e:?}");
            },
            RaydiumClmmSwapV2Event => |e: RaydiumClmmSwapV2Event| {
                println!("RaydiumClmmSwapV2Event: {e:?}");
            },
            RaydiumClmmClosePositionEvent => |e: RaydiumClmmClosePositionEvent| {
                println!("RaydiumClmmClosePositionEvent: {e:?}");
            },
            RaydiumClmmDecreaseLiquidityV2Event => |e: RaydiumClmmDecreaseLiquidityV2Event| {
                println!("RaydiumClmmDecreaseLiquidityV2Event: {e:?}");
            },
            RaydiumClmmCreatePoolEvent => |e: RaydiumClmmCreatePoolEvent| {
                println!("RaydiumClmmCreatePoolEvent: {e:?}");
            },
            RaydiumClmmIncreaseLiquidityV2Event => |e: RaydiumClmmIncreaseLiquidityV2Event| {
                println!("RaydiumClmmIncreaseLiquidityV2Event: {e:?}");
            },
            RaydiumClmmOpenPositionWithToken22NftEvent => |e: RaydiumClmmOpenPositionWithToken22NftEvent| {
                println!("RaydiumClmmOpenPositionWithToken22NftEvent: {e:?}");
            },
            RaydiumClmmOpenPositionV2Event => |e: RaydiumClmmOpenPositionV2Event| {
                println!("RaydiumClmmOpenPositionV2Event: {e:?}");
            },
            // -------------------------- raydium_amm_v4 -----------------------
            RaydiumAmmV4SwapEvent => |e: RaydiumAmmV4SwapEvent| {
                println!("RaydiumAmmV4SwapEvent: {e:?}");
            },
            RaydiumAmmV4DepositEvent => |e: RaydiumAmmV4DepositEvent| {
                println!("RaydiumAmmV4DepositEvent: {e:?}");
            },
            RaydiumAmmV4Initialize2Event => |e: RaydiumAmmV4Initialize2Event| {
                println!("RaydiumAmmV4Initialize2Event: {e:?}");
            },
            RaydiumAmmV4WithdrawEvent => |e: RaydiumAmmV4WithdrawEvent| {
                println!("RaydiumAmmV4WithdrawEvent: {e:?}");
            },
            RaydiumAmmV4WithdrawPnlEvent => |e: RaydiumAmmV4WithdrawPnlEvent| {
                println!("RaydiumAmmV4WithdrawPnlEvent: {e:?}");
            },
            // -------------------------- account -----------------------
            BonkPoolStateAccountEvent => |e: BonkPoolStateAccountEvent| {
                println!("BonkPoolStateAccountEvent: {e:?}");
            },
            BonkGlobalConfigAccountEvent => |e: BonkGlobalConfigAccountEvent| {
                println!("BonkGlobalConfigAccountEvent: {e:?}");
            },
            BonkPlatformConfigAccountEvent => |e: BonkPlatformConfigAccountEvent| {
                println!("BonkPlatformConfigAccountEvent: {e:?}");
            },
            PumpSwapGlobalConfigAccountEvent => |e: PumpSwapGlobalConfigAccountEvent| {
                println!("PumpSwapGlobalConfigAccountEvent: {e:?}");
            },
            PumpSwapPoolAccountEvent => |e: PumpSwapPoolAccountEvent| {
                println!("PumpSwapPoolAccountEvent: {e:?}");
            },
            PumpFunBondingCurveAccountEvent => |e: PumpFunBondingCurveAccountEvent| {
                println!("PumpFunBondingCurveAccountEvent: {e:?}");
            },
            PumpFunGlobalAccountEvent => |e: PumpFunGlobalAccountEvent| {
                println!("PumpFunGlobalAccountEvent: {e:?}");
            },
            RaydiumAmmV4AmmInfoAccountEvent => |e: RaydiumAmmV4AmmInfoAccountEvent| {
                println!("RaydiumAmmV4AmmInfoAccountEvent: {e:?}");
            },
            RaydiumClmmAmmConfigAccountEvent => |e: RaydiumClmmAmmConfigAccountEvent| {
                println!("RaydiumClmmAmmConfigAccountEvent: {e:?}");
            },
            RaydiumClmmPoolStateAccountEvent => |e: RaydiumClmmPoolStateAccountEvent| {
                println!("RaydiumClmmPoolStateAccountEvent: {e:?}");
            },
            RaydiumClmmTickArrayStateAccountEvent => |e: RaydiumClmmTickArrayStateAccountEvent| {
                println!("RaydiumClmmTickArrayStateAccountEvent: {e:?}");
            },
            RaydiumCpmmAmmConfigAccountEvent => |e: RaydiumCpmmAmmConfigAccountEvent| {
                println!("RaydiumCpmmAmmConfigAccountEvent: {e:?}");
            },
            RaydiumCpmmPoolStateAccountEvent => |e: RaydiumCpmmPoolStateAccountEvent| {
                println!("RaydiumCpmmPoolStateAccountEvent: {e:?}");
            },
        });
    }
}
```

### Event Filtering

The library supports flexible event filtering to reduce processing overhead and improve performance:

#### Basic Filtering

```rust
use solana_streamer_sdk::streaming::event_parser::common::{filter::EventTypeFilter, EventType};

// No filtering - receive all events
let event_type_filter = None;

// Filter specific event types - only receive PumpSwap buy/sell events
let event_type_filter = Some(EventTypeFilter { 
    include: vec![EventType::PumpSwapBuy, EventType::PumpSwapSell] 
});
```

#### Performance Impact

Event filtering can provide significant performance improvements:
- **60-80% reduction** in unnecessary event processing
- **Lower memory usage** by filtering out irrelevant events
- **Reduced network bandwidth** in distributed setups
- **Better focus** on events that matter to your application

#### Filtering Examples by Use Case

**Trading Bot (Focus on Trade Events)**
```rust
let event_type_filter = Some(EventTypeFilter { 
    include: vec![
        EventType::PumpSwapBuy,
        EventType::PumpSwapSell,
        EventType::PumpFunTrade,
        EventType::RaydiumCpmmSwap,
        EventType::RaydiumClmmSwap,
        EventType::RaydiumAmmV4Swap,
        ......
    ] 
});
```

**Pool Monitoring (Focus on Liquidity Events)**
```rust
let event_type_filter = Some(EventTypeFilter { 
    include: vec![
        EventType::PumpSwapCreatePool,
        EventType::PumpSwapDeposit,
        EventType::PumpSwapWithdraw,
        EventType::RaydiumCpmmInitialize,
        EventType::RaydiumCpmmDeposit,
        EventType::RaydiumCpmmWithdraw,
        EventType::RaydiumClmmCreatePool,
        ......
    ] 
});
```

## Dynamic Subscription Management

Update subscription filters at runtime without reconnecting to the stream.

```rust
// Update filters on existing subscription
grpc.update_subscription(
    TransactionFilter {
        account_include: vec!["new_program_id".to_string()],
        account_exclude: vec![],
        account_required: vec![],
    },
    AccountFilter {
        account: vec![],
        owner: vec![],
    },
).await?;
```

- **No Reconnection**: Filter changes apply immediately without closing the stream
- **Atomic Updates**: Both transaction and account filters updated together
- **Single Subscription**: One active subscription per client instance
- **Compatible**: Works with both immediate and advanced subscription methods

Note: Multiple subscription attempts on the same client return an error.

## Supported Protocols

- **PumpFun**: Primary meme coin trading platform
- **PumpSwap**: PumpFun's swap protocol
- **Bonk**: Token launch platform (letsbonk.fun)
- **Raydium CPMM**: Raydium's Concentrated Pool Market Maker protocol
- **Raydium CLMM**: Raydium's Concentrated Liquidity Market Maker protocol
- **Raydium AMM V4**: Raydium's Automated Market Maker V4 protocol

## Event Streaming Services

- **Yellowstone gRPC**: High-performance Solana event streaming
- **ShredStream**: Alternative event streaming protocol

## Architecture Features

### Unified Event Interface

- **UnifiedEvent Trait**: All protocol events implement a common interface
- **Protocol Enum**: Easy identification of event sources
- **Event Factory**: Automatic event parsing and categorization

### Event Parsing System

- **Protocol-specific Parsers**: Dedicated parsers for each supported protocol
- **Event Factory**: Centralized event creation and parsing
- **Extensible Design**: Easy to add new protocols and event types

### Streaming Infrastructure

- **Yellowstone gRPC Client**: Optimized for Solana event streaming
- **ShredStream Client**: Alternative streaming implementation
- **Async Processing**: Non-blocking event handling

## Project Structure

```
src/
├── common/           # Common functionality and types
├── protos/           # Protocol buffer definitions
├── streaming/        # Event streaming system
│   ├── event_parser/ # Event parsing system
│   │   ├── common/   # Common event parsing tools
│   │   ├── core/     # Core parsing traits and interfaces
│   │   ├── protocols/# Protocol-specific parsers
│   │   │   ├── bonk/ # Bonk event parsing
│   │   │   ├── pumpfun/ # PumpFun event parsing
│   │   │   ├── pumpswap/ # PumpSwap event parsing
│   │   │   ├── raydium_amm_v4/ # Raydium AMM V4 event parsing
│   │   │   ├── raydium_cpmm/ # Raydium CPMM event parsing
│   │   │   └── raydium_clmm/ # Raydium CLMM event parsing
│   │   └── factory.rs # Parser factory
│   ├── shred_stream.rs # ShredStream client
│   ├── yellowstone_grpc.rs # Yellowstone gRPC client
│   └── yellowstone_sub_system.rs # Yellowstone subsystem
├── lib.rs            # Main library file
└── main.rs           # Example program
```

## License

MIT License

## Contact

- Project Repository: https://github.com/0xfnzero/solana-streamer
- Telegram Group: https://t.me/fnzero_group

## Performance Considerations

1. **Connection Management**: Properly handle connection lifecycle and reconnection
2. **Event Filtering**: Use protocol filtering to reduce unnecessary event processing
3. **Memory Management**: Implement appropriate cleanup for long-running streams
4. **Error Handling**: Robust error handling for network issues and service interruptions
5. **Batch Processing Optimization**: Use batch processing to reduce callback overhead and improve throughput
6. **Performance Monitoring**: Enable performance monitoring to identify bottlenecks and optimization opportunities
7. **Graceful Shutdown**: Use the stop() method for clean shutdown and implement signal handlers for proper resource cleanup

## Important Notes

1. **Network Stability**: Ensure stable network connection for continuous event streaming
2. **Rate Limiting**: Be aware of rate limits on public gRPC endpoints
3. **Error Recovery**: Implement proper error handling and reconnection logic
5. **Compliance**: Ensure compliance with relevant laws and regulations

## Language Versions

- [English](README.md)
- [中文](README_CN.md)