A lightweight Rust library providing efficient event parsing and subscription capabilities for PumpFun, PumpSwap, Bonk, and Raydium protocols.

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Table of Contents

• 🚀 Project Features
• ⚡ Installation
• 🔄 Migration Guide
• ⚙️ Configuration System
• 📚 Usage Examples
• 🔧 Supported Protocols
• 🌐 Event Streaming Services
• 🏗️ Architecture Features
• 📁 Project Structure
• ⚡ Performance Considerations
• 📄 License
• 📞 Contact
• ⚠️ Important Notes

🚀 Project Features

Core Capabilities

• Real-time Event Streaming: Subscribe to live trading events from multiple Solana DEX protocols
• Yellowstone gRPC Support: High-performance event subscription using Yellowstone gRPC
• ShredStream Support: Alternative event streaming using ShredStream protocol
• Unified Event Interface: Consistent event handling across all supported protocols

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

Advanced Features

• Event Parsing System: Automatic parsing and categorization of protocol-specific events
• Account State Monitoring: Real-time monitoring of protocol account states and configuration changes
• Transaction & Account Event Filtering: Separate filtering for transaction events and account state changes
• Dynamic Subscription Management: Runtime filter updates without reconnection, enabling adaptive monitoring strategies
• Multi-Filter Support: Support for multiple transaction and account filters in a single subscription
• Advanced Account Filtering: Memcmp filters for precise account data matching and monitoring
• Token2022 Support: Enhanced support for SPL Token 2022 with extended state parsing

Performance & Optimization

• High Performance: Optimized for low-latency event processing
• Batch Processing Optimization: Batch processing events to reduce callback overhead
• Performance Monitoring: Built-in performance metrics monitoring, including event processing speed
• Memory Optimization: Object pooling and caching mechanisms to reduce memory allocations
• Flexible Configuration System: Support for custom batch sizes, backpressure strategies, channel sizes
• Preset Configurations: High-throughput and low-latency preset configurations optimized for different use cases
• Backpressure Handling: Supports blocking and dropping backpressure strategies
• Runtime Configuration Updates: Dynamic configuration parameter updates at runtime
• Graceful Shutdown: Support for programmatic stop() method for clean shutdown

⚡ Installation

Direct Clone

Clone this project to your project directory:

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

Add the dependency to your Cargo.toml:

# Add to your Cargo.toml
solana-streamer-sdk = { path = "./solana-streamer", version = "1.1.5" }

Use crates.io

# Add to your Cargo.toml
solana-streamer-sdk = "1.1.5"

🔄 Migration Guide

Migrating from v0.5.x to v1.x.x

Version 1.0.0 introduces a major architectural change from trait-based event handling to enum-based events. This provides better type safety, improved performance, and simpler code patterns.

Key Changes:

1. Event Type Changed - Box<dyn UnifiedEvent> → DexEvent enum
2. Callback Signature - Callbacks now receive concrete DexEvent instead of trait objects
3. Event Matching - Use standard Rust match instead of match_event! macro
4. Metadata Access - Event properties now accessed through .metadata() method

For detailed migration steps and code examples, see MIGRATION.md or MIGRATION_CN.md (Chinese version).

Quick Migration Example:

// Old (v0.5.x)
let callback = |event: Box<dyn UnifiedEvent>| {
    println!("Event: {:?}", event.event_type());
};

// New (v1.x.x)
let callback = |event: DexEvent| {
    println!("Event: {:?}", event.metadata().event_type);
};

⚙️ Configuration System

You can customize client configuration:

use solana_streamer_sdk::streaming::grpc::ClientConfig;

// Use default configuration
let grpc = YellowstoneGrpc::new(endpoint, token)?;

// Or create custom configuration
let mut config = ClientConfig::default();
config.enable_metrics = true;  // Enable performance monitoring
config.connection.connect_timeout = 30;  // 30 seconds
config.connection.request_timeout = 120;  // 120 seconds

let grpc = YellowstoneGrpc::new_with_config(endpoint, token, config)?;

Available Configuration Options:

• enable_metrics: Enable/disable performance monitoring (default: false)
• connection.connect_timeout: Connection timeout in seconds (default: 10)
• connection.request_timeout: Request timeout in seconds (default: 60)
• connection.max_decoding_message_size: Maximum message size in bytes (default: 10MB)

📚 Usage Examples

Usage Examples Summary Table

Event Filtering

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

Basic Filtering

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)

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)

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.

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

• DexEvent Enum: Type-safe enum containing all protocol events
• 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

⚡ 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

📄 License

MIT License

📞 Contact

• Website: https://fnzero.dev/
• Project Repository: https://github.com/0xfnzero/solana-streamer
• Telegram Group: https://t.me/fnzero_group
• Discord: https://discord.gg/vuazbGkqQE

⚠️ 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
4. Compliance: Ensure compliance with relevant laws and regulations

Language Versions

• English
• 中文