⚡ Sol Parser SDK

Ultra-low latency Solana DEX event parser with SIMD optimization

High-performance Rust library for parsing Solana DEX events with microsecond-level latency

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☕ Support This Project

This SDK is completely free and open source. However, maintaining and continuously updating it requires significant AI computing resources and token consumption. If this SDK helps with your development, consider making a monthly SOL donation — any amount is appreciated and helps keep this project alive!

Donation Wallet: 6oW7AXz1yRb57pYSxysuXnMs2aR1ha5rzGzReZ1MjPV8

---

📦 SDK Versions

This SDK is available in multiple languages:

Language	Repository	Description
Rust	sol-parser-sdk	Ultra-low latency with SIMD optimization
Node.js	sol-parser-sdk-nodejs	TypeScript/JavaScript for Node.js
Python	sol-parser-sdk-python	Async/await native support
Go	sol-parser-sdk-golang	Concurrent-safe with goroutine support

---

📊 Performance Highlights

⚡ Ultra-Low Latency

• 10-20μs parsing latency in release mode
• Zero-copy parsing with stack-allocated buffers
• SIMD-accelerated pattern matching (memchr)
• Lock-free ArrayQueue for event delivery

🎚️ Flexible Order Modes

Mode	Latency	Description
Unordered	10-20μs	Immediate output, ultra-low latency
MicroBatch	50-200μs	Micro-batch ordering with time window
StreamingOrdered	0.1-5ms	Stream ordering with continuous sequence release
Ordered	1-50ms	Full slot ordering, wait for complete slot

🚀 Optimization Highlights

• ✅ Zero heap allocation for hot paths
• ✅ SIMD pattern matching for all protocol detection
• ✅ Static pre-compiled finders for string search
• ✅ Inline functions with aggressive optimization
• ✅ Event type filtering for targeted parsing
• ✅ Conditional Create detection (only when needed)
• ✅ Multiple order modes for latency vs ordering trade-off

---

🔥 Quick Start

Installation

Clone the repository:

cd your_project_dir
git clone https://github.com/0xfnzero/sol-parser-sdk

Add to your Cargo.toml:

[dependencies]
# Default: Borsh parser
sol-parser-sdk = { path = "../sol-parser-sdk" }

# Or: Zero-copy parser (maximum performance)
sol-parser-sdk = { path = "../sol-parser-sdk", default-features = false, features = ["parse-zero-copy"] }

Use crates.io

# Add to your Cargo.toml
sol-parser-sdk = "0.4.4"

Or with the zero-copy parser (maximum performance):

sol-parser-sdk = { version = "0.4.4", default-features = false, features = ["parse-zero-copy"] }

Performance Testing

Test parsing latency with the optimized examples:

# PumpFun with detailed metrics (per-event + 10s stats)
cargo run --example pumpfun_with_metrics --release

# PumpSwap with detailed metrics (per-event + 10s stats)
cargo run --example pumpswap_with_metrics --release

# PumpSwap ultra-low latency test
cargo run --example pumpswap_low_latency --release

# PumpSwap with MicroBatch ordering
cargo run --example pumpswap_ordered --release

# Expected output:
# gRPC receive time: 1234567890 μs
# Event receive time: 1234567900 μs
# Latency: 10 μs  <-- Ultra-low latency!

Examples

Description	Run Command	Source Code
PumpFun
PumpFun event parsing with metrics	cargo run --example pumpfun_with_metrics --release	examples/pumpfun_with_metrics.rs
PumpFun trade type filtering	cargo run --example pumpfun_trade_filter --release	examples/pumpfun_trade_filter.rs
PumpFun trade with ordered mode	cargo run --example pumpfun_trade_filter_ordered --release	examples/pumpfun_trade_filter_ordered.rs
Quick PumpFun connection test	cargo run --example pumpfun_quick_test --release	examples/pumpfun_quick_test.rs
Parse PumpFun tx by signature	TX_SIGNATURE=<sig> cargo run --example parse_pump_tx --release	examples/parse_pump_tx.rs
Debug PumpFun transaction	cargo run --example debug_pump_tx --release	examples/debug_pump_tx.rs
PumpSwap
PumpSwap events with metrics	cargo run --example pumpswap_with_metrics --release	examples/pumpswap_with_metrics.rs
PumpSwap ultra-low latency	cargo run --example pumpswap_low_latency --release	examples/pumpswap_low_latency.rs
PumpSwap with MicroBatch ordering	cargo run --example pumpswap_ordered --release	examples/pumpswap_ordered.rs
Parse PumpSwap tx by signature	TX_SIGNATURE=<sig> cargo run --example parse_pumpswap_tx --release	examples/parse_pumpswap_tx.rs
Debug PumpSwap transaction	cargo run --example debug_pumpswap_tx --release	examples/debug_pumpswap_tx.rs
Meteora DAMM
Meteora DAMM V2 events	cargo run --example meteora_damm_grpc --release	examples/meteora_damm_grpc.rs
Parse Meteora DAMM tx by signature	TX_SIGNATURE=<sig> cargo run --example parse_meteora_damm_tx --release	examples/parse_meteora_damm_tx.rs
Account subscription
Token account balance updates	TOKEN_ACCOUNT=<pubkey> cargo run --example token_balance_listen --release	examples/token_balance_listen.rs
Nonce account state changes	NONCE_ACCOUNT=<pubkey> cargo run --example nonce_listen --release	examples/nonce_listen.rs
Mint account info	MINT_ACCOUNT=<pubkey> cargo run --example token_decimals_listen --release	examples/token_decimals_listen.rs
PumpSwap pool accounts via memcmp	cargo run --example pumpswap_pool_account_listen --release	examples/pumpswap_pool_account_listen.rs
All ATAs for mints	cargo run --example mint_all_ata_account_listen --release	examples/mint_all_ata_account_listen.rs
ShredStream
Jito ShredStream subscription	cargo run --example shredstream_example --release	examples/shredstream_example.rs
Utility
Dynamic subscription filters	cargo run --example dynamic_subscription --release	examples/dynamic_subscription.rs
Debug PumpSwap account filling	cargo run --example test_account_filling --release	examples/test_account_filling.rs

Basic Usage

use sol_parser_sdk::grpc::{YellowstoneGrpc, ClientConfig, OrderMode, EventTypeFilter, EventType};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Create gRPC client with default config (Unordered mode)
    let grpc = YellowstoneGrpc::new(
        "https://solana-yellowstone-grpc.publicnode.com:443".to_string(),
        None,
    )?;
    
    // Or with custom config for ordered events
    let config = ClientConfig {
        order_mode: OrderMode::MicroBatch,  // Low latency + ordering
        micro_batch_us: 100,                // 100μs batch window
        ..ClientConfig::default()
    };
    let grpc = YellowstoneGrpc::new_with_config(
        "https://solana-yellowstone-grpc.publicnode.com:443".to_string(),
        None,
        config,
    )?;

    // Filter for PumpFun Trade events only (ultra-fast path)
    let event_filter = EventTypeFilter::include_only(vec![
        EventType::PumpFunTrade
    ]);

    // Subscribe and get lock-free queue
    let queue = grpc.subscribe_dex_events(
        vec![transaction_filter],
        vec![account_filter],
        Some(event_filter),
    ).await?;

    // Consume events with minimal latency
    tokio::spawn(async move {
        let mut spin_count = 0;
        loop {
            if let Some(event) = queue.pop() {
                spin_count = 0;
                // Process event (10-20μs latency!)
                println!("{:?}", event);
            } else {
                // Hybrid spin-wait strategy
                spin_count += 1;
                if spin_count < 1000 {
                    std::hint::spin_loop();
                } else {
                    tokio::task::yield_now().await;
                    spin_count = 0;
                }
            }
        }
    });

    Ok(())
}

ShredStream Usage (Jito)

ShredStream provides ultra-low latency (~50-100ms faster than gRPC) by directly subscribing to Jito's ShredStream service:

use sol_parser_sdk::shredstream::{ShredStreamClient, ShredStreamConfig};
use sol_parser_sdk::DexEvent;
use std::sync::Arc;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Create ShredStream client
    let client = ShredStreamClient::new("http://127.0.0.1:10800").await?;

    // Or with custom config
    let config = ShredStreamConfig {
        connection_timeout_ms: 5000,
        request_timeout_ms: 30000,
        max_decoding_message_size: 1024 * 1024 * 1024,
        reconnect_delay_ms: 1000,
        max_reconnect_attempts: 0, // 0 = infinite reconnect
    };
    let client = ShredStreamClient::new_with_config("http://127.0.0.1:10800", config).await?;

    // Subscribe and get lock-free queue
    let queue = client.subscribe().await?;

    // Consume events
    loop {
        if let Some(event) = queue.pop() {
            match &event {
                DexEvent::PumpFunTrade(e) => {
                    println!("PumpFun Trade: mint={}, is_buy={}", e.mint, e.is_buy);
                }
                DexEvent::PumpSwapBuy(e) => {
                    println!("PumpSwap Buy: pool={}", e.pool);
                }
                _ => {}
            }
        } else {
            std::hint::spin_loop();
        }
    }
}

ShredStream Limitations:

• Only static_account_keys() - transactions using ALT may have incorrect accounts
• No Inner Instructions - cannot parse CPI calls
• No block_time - always 0
• tx_index is entry-level, not slot-level

---

🏗️ Supported Protocols

DEX Protocols

• ✅ PumpFun - Meme coin trading (ultra-fast zero-copy path, incl. v2 instructions)
• ✅ PumpSwap - PumpFun swap protocol
• ✅ Raydium AMM V4 - Automated Market Maker
• ✅ Raydium CLMM - Concentrated Liquidity
• ✅ Raydium CPMM - Concentrated Pool
• ✅ Orca Whirlpool - Concentrated liquidity AMM
• ✅ Meteora AMM - Dynamic AMM
• ✅ Meteora DAMM - Dynamic AMM V2
• ✅ Meteora DLMM - Dynamic Liquidity Market Maker
• ✅ Bonk Launchpad - Token launch platform

Event Types

Each protocol supports:

• 📈 Trade/Swap Events - Buy/sell transactions
• 💧 Liquidity Events - Deposits/withdrawals
• 🏊 Pool Events - Pool creation/initialization
• 🎯 Position Events - Open/close positions (CLMM)

---

⚡ Performance Features

Zero-Copy Parsing

// Stack-allocated 512-byte buffer for PumpFun Trade
const MAX_DECODE_SIZE: usize = 512;
let mut decode_buf: [u8; MAX_DECODE_SIZE] = [0u8; MAX_DECODE_SIZE];

// Decode directly to stack, no heap allocation
general_purpose::STANDARD
    .decode_slice(data_part.as_bytes(), &mut decode_buf)
    .ok()?;

SIMD Pattern Matching

// Pre-compiled SIMD finders (initialized once)
static PUMPFUN_FINDER: Lazy<memmem::Finder> =
    Lazy::new(|| memmem::Finder::new(b"6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"));

// 3-10x faster than .contains()
if PUMPFUN_FINDER.find(log_bytes).is_some() {
    return LogType::PumpFun;
}

Event Type Filtering

// Ultra-fast path for single event type
if include_only.len() == 1 && include_only[0] == EventType::PumpFunTrade {
    if log_type == LogType::PumpFun {
        return parse_pumpfun_trade(  // Zero-copy path
            log, signature, slot, block_time, grpc_recv_us, is_created_buy
        );
    }
}

Lock-Free Queue

// ArrayQueue with 100,000 capacity
let queue = Arc::new(ArrayQueue::<DexEvent>::new(100_000));

// Non-blocking push/pop (no mutex overhead)
let _ = queue.push(event);
if let Some(event) = queue.pop() {
    // Process event
}

---

🎯 Event Filtering

Reduce processing overhead by filtering specific events:

Example: Trading Bot

let event_filter = EventTypeFilter::include_only(vec![
    EventType::PumpFunTrade,
    EventType::RaydiumAmmV4Swap,
    EventType::RaydiumClmmSwap,
    EventType::OrcaWhirlpoolSwap,
]);

Example: Pool Monitor

let event_filter = EventTypeFilter::include_only(vec![
    EventType::PumpFunCreate,
    EventType::RaydiumClmmCreatePool,
    EventType::OrcaWhirlpoolInitialize,
]);

Performance Impact:

• 60-80% reduction in processing
• Lower memory usage
• Reduced network bandwidth

---

🔧 Advanced Features

Create+Buy Detection

Automatically detects when a token is created and immediately bought in the same transaction:

// Detects "Program data: GB7IKAUcB3c..." pattern
let has_create = detect_pumpfun_create(logs);

// Sets is_created_buy flag on Trade events
if has_create {
    trade_event.is_created_buy = true;
}

Pump.fun Bonding Curve v2 (buy_v2 / sell_v2 / buy_exact_quote_in_v2)

The SDK recognizes Pump.fun's new v2 trading instructions introduced in the Bonding Curve upgrade. Event logs from buy_v2, sell_v2, and buy_exact_quote_in_v2 are parsed with the same zero-copy path and mapped to the existing event types:

ix_name in TradeEvent	DexEvent Variant
"buy" / "buy_v2"	DexEvent::PumpFunBuy
"sell" / "sell_v2"	DexEvent::PumpFunSell
"buy_exact_sol_in" / "buy_exact_quote_in_v2"	DexEvent::PumpFunBuyExactSolIn

No changes are required in your event handling code — v2 events arrive through the same PumpFunTradeEvent struct with the correct ix_name field populated. Instruction discriminators for buy_v2 ([184, 23, 238, 97, 103, 197, 211, 61]), sell_v2 ([93, 246, 130, 60, 231, 233, 64, 178]), and buy_exact_quote_in_v2 ([194, 171, 28, 70, 104, 77, 91, 47]) are recognized at the instruction parser level.

Dynamic Subscription

Update filters without reconnecting:

grpc.update_subscription(
    vec![new_transaction_filter],
    vec![new_account_filter],
).await?;

Order Modes

Choose the right balance between latency and ordering:

use sol_parser_sdk::grpc::{ClientConfig, OrderMode};

// Ultra-low latency (no ordering guarantee)
let config = ClientConfig {
    order_mode: OrderMode::Unordered,
    ..ClientConfig::default()
};

// Low latency with micro-batch ordering (50-200μs)
let config = ClientConfig {
    order_mode: OrderMode::MicroBatch,
    micro_batch_us: 100,  // 100μs batch window
    ..ClientConfig::default()
};

// Stream ordering with continuous sequence release (0.1-5ms)
let config = ClientConfig {
    order_mode: OrderMode::StreamingOrdered,
    order_timeout_ms: 50,  // Timeout for incomplete sequences
    ..ClientConfig::default()
};

// Full slot ordering (1-50ms, wait for complete slot)
let config = ClientConfig {
    order_mode: OrderMode::Ordered,
    order_timeout_ms: 100,
    ..ClientConfig::default()
};

Performance Metrics

let config = ClientConfig {
    enable_metrics: true,
    ..ClientConfig::default()
};

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

---

📁 Project Structure

src/
├── core/
│   └── events.rs          # Event definitions
├── grpc/
│   ├── client.rs          # Yellowstone gRPC client
│   ├── buffers.rs         # SlotBuffer & MicroBatchBuffer
│   └── types.rs           # OrderMode, ClientConfig, filters
├── shredstream/
│   ├── client.rs          # Jito ShredStream client
│   ├── config.rs          # ShredStreamConfig
│   └── proto/             # Protobuf definitions
├── logs/
│   ├── optimized_matcher.rs  # SIMD log detection
│   ├── zero_copy_parser.rs   # Zero-copy parsing
│   ├── pumpfun.rs         # PumpFun parser
│   ├── raydium_*.rs       # Raydium parsers
│   ├── orca_*.rs          # Orca parsers
│   └── meteora_*.rs       # Meteora parsers
├── instr/
│   └── *.rs               # Instruction parsers
├── warmup/
│   └── mod.rs             # Parser warmup (auto-called)
└── lib.rs

---

🚀 Optimization Techniques

1. SIMD String Matching

• Replaced all .contains() with memmem::Finder
• 3-10x performance improvement
• Pre-compiled static finders

2. Zero-Copy Parsing

• Stack-allocated buffers (512 bytes)
• No heap allocation in hot path
• Inline helper functions

3. Event Type Filtering

• Early filtering at protocol level
• Conditional Create detection
• Single-type ultra-fast path

4. Lock-Free Queue

• ArrayQueue (100K capacity)
• Spin-wait hybrid strategy
• No mutex overhead

5. Aggressive Inlining

#[inline(always)]
fn read_u64_le_inline(data: &[u8], offset: usize) -> Option<u64> {
    if offset + 8 <= data.len() {
        let mut bytes = [0u8; 8];
        bytes.copy_from_slice(&data[offset..offset + 8]);
        Some(u64::from_le_bytes(bytes))
    } else {
        None
    }
}

---

📊 Benchmarks

Parsing Latency (Release Mode)

Protocol	Avg Latency	Min	Max
PumpFun Trade (zero-copy)	10-15μs	8μs	20μs
Raydium AMM V4 Swap	15-20μs	12μs	25μs
Orca Whirlpool Swap	15-20μs	12μs	25μs

SIMD Pattern Matching

Operation	Before (contains)	After (SIMD)	Speedup
Protocol detection	50-100ns	10-20ns	3-10x
Create event detection	150ns	30ns	5x

---

📄 License

MIT License

📞 Contact

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

---

⚠️ Performance Tips

1. Use Event Filtering - Filter at the source for 60-80% performance gain
2. Run in Release Mode - cargo build --release for full optimization
3. Test with sudo - sudo cargo run --example basic --release for accurate timing
4. Monitor Latency - Check grpc_recv_us and queue latency in production
5. Tune Queue Size - Adjust ArrayQueue capacity based on your throughput
6. Spin-Wait Strategy - Tune spin count (default: 1000) for your use case

🔬 Development

# Run tests
cargo test

# Build release binary
cargo build --release

# Generate docs
cargo doc --open