nosync

An efficient, decoupled Hyperliquid wallet position monitor and Notion database logger.

1. Introduction

nosync is a real-time wallet position monitoring and analysis tool built with Rust. It subscribes to a specified Hyperliquid wallet address via WebSockets, captures position-opening trades in real-time, aggregates multi-tick partial fills of a single order (using a 500ms debounce aggregation mechanism), and automatically synchronizes the formatted trade data to a Notion database.

2. Key Features

• Real-time Wallet Subscription: Uses hyperliquid-rust-sdk to establish a persistent WebSocket connection to the wallet's UserEvents, sensing position changes at millisecond latency.
• Aggregated Fills via oid: Aggregates multi-tick partial fills belonging to the same order (oid) within a 500ms window into a single unified row, preventing split trades from generating duplicate database entries.
• Opening Event Capture: Identifies position opening actions by validating if the starting position (start_position) is zero. Currently captures only opening positions (ignores closes to prevent tick-splitting complexity).
• Order Type Detection: Auto-detects order execution types (MARKET for taker fills with crossed == true, LIMIT for maker fills with crossed == false).
• Robust Reconnection: Implements a robust connection loop that automatically reconnects after network glitches or WebSocket drops.
• Notion Integration: Integrates notion-client API to write structured rows (Symbol, Quantity, Filled Price, Direction, Exchange, DataTime, Order ID, Order Type, Check) directly to a target Notion database.

3. Architecture & Modules

The directory structure and modules are as follows:

nosync/
├── src/
│   ├── lib.rs          # Unified module exports
│   ├── structs.rs      # Data models and event definitions (e.g., NotionRowData)
│   ├── hyperliquid.rs  # Hyperliquid WebSocket monitor implementation
│   └── notion.rs       # Notion Database writer implementation
├── examples/           # Development examples
│   ├── demo.rs         # Real-time wallet monitoring demo
│   └── fetch_notion_db.rs # Dev script to fetch Notion Database schema properties
├── tests/              # Integration and unit tests
│   └── monitor_test.rs # Monitor connectivity and reconnection loop tests
├── references/         # Local reference submodules
├── .env                # Local environment variables configuration (ignored by git)
├── .env.example        # Environment configuration template
├── Cargo.toml          # Cargo package file with remote Git dependencies
└── CHANGELOG.md        # Change log

• HyperliquidMonitor (src/hyperliquid.rs): Long-running service maintaining the WebSocket connection to the Hyperliquid API and emitting aggregated trade events.
• NotionWriter (src/notion.rs): Formats and writes the captured row data to the Notion database.
• structs (src/structs.rs): Defines data models like PositionTradeEvent and NotionRowData.

4. Requirements

• Rust: 1.85.0 or higher (supports the 2024 edition)
• OS: Linux, macOS, Windows

5. Getting Started

# Clone the repository
git clone https://github.com/cathiefish/nosync.git
cd nosync

# Copy and configure environment variables
cp .env.example .env
# Edit the .env file with your WALLET_ADDRESS, Notion integration token, and database ID

# Build the project
cargo build --release

# Run the monitoring sync service
cargo run

# Run the local monitor demo
cargo run --example demo

6. Code Example

A minimal running example for the monitor is located at examples/demo.rs:

use alloy::primitives::address;
use nosync::HyperliquidMonitor;
use tokio::sync::mpsc;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let wallet = address!("0xc64cc00b46101bd40aa1c3121195e85c0b0918d8");
    let monitor = HyperliquidMonitor::new(wallet, true); // true for Testnet

    let (tx, mut rx) = mpsc::unbounded_channel();
    tokio::spawn(async move {
        let _ = monitor.run(tx).await;
    });

    while let Some(event) = rx.recv().await {
        println!("Captured Position Opening Event: {:?}", event);
    }
    Ok(())
}

7. Environment Variables

Variable	Description	Required	Default / Example Value
WALLET_ADDRESS	The Ethereum/Hyperliquid wallet address to monitor	Yes	0xc64cc00b46101bd40aa1c3121195e85c0b0918d8
IS_TESTNET	Connect to Hyperliquid Testnet (true/false)	No	true
NOTION_API_KEY	Notion integration token (internal secret)	Yes	secret_xxxxxx...
NOTION_DATABASE_ID	Notion Database ID	Yes	2b08f81ac37083389c5c01242f3c1557
RUST_LOG	Logging verbosity level (error, warn, info, debug)	No	info

8. Development & Testing

Git Branching Strategy

• dev: Active development branch. New features and fixes are merged here first.
• main: Stable production-ready branch.

Local Quality Checks

Before submitting pull requests, you must run:

# Auto-format codebase
cargo fmt --all

# Run lint checks
cargo clippy --all-targets --all-features -- -D warnings

# Execute test suite
cargo test

9. Changelog

For a detailed log of project updates, please refer to CHANGELOG.md.