🎯 Sniper Bot System

A comprehensive MEV solution that transforms token sniping from creator exploitation into a profitable auction system. Token creators can now monetize sniping activity through competitive bidding, while snipers compete transparently for early access.

📋 Project Overview

Instead of losing value to front-running bots, this system enables:

• 📈 Monetized Sniping: Token creators receive direct bribes from competing snipers
• 🏆 Fair Competition: Transparent bidding system with highest bribes winning
• ⚡ Atomic Execution: Smart contracts ensure bribes are paid before snipes execute
• 🔒 Secure Infrastructure: End-to-end security from wallet generation to transaction execution

🏗️ System Architecture

graph TB
    subgraph "Snipers"
        TG[📱 Telegram Bot]
        W[👛 Wallets]
    end
    
    subgraph "Backend Services"
        BS[🤖 Bot Service]
        RPC[🔗 RPC Proxy]
        DB[(🗄️ MySQL)]
    end
    
    subgraph "Smart Contracts"
        SC[⚡ Sniper Contract]
        DEX[🔄 DEX Router]
    end
    
    subgraph "Token Creators"
        TC[👨‍💻 Creator]
        MM[🦊 MetaMask/Rabby]
    end
    
    TG --> BS
    BS --> DB
    BS --> SC
    SC --> DEX
    TC --> MM
    MM --> RPC
    
    RPC -.->|Bundle Creation| BS
    SC -.->|Bribe Transfer| TC

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🗂️ Project Structure

/backend - Go Backend Services

Tech Stack: Go, MySQL, Telegram Bot API, Ethereum JSON-RPC

• 🤖 Telegram Bot: User registration, wallet management, bid submission
• 🔗 RPC Proxy: Transaction interception and bundle construction
• 💾 Database: Secure wallet storage and bid management
• 📦 Bundle Manager: MEV transaction ordering and submission

📖 Backend Documentation →

/contracts - Smart Contracts

Tech Stack: Solidity, Foundry, Uniswap V2

• ⚡ Sniper Contract: Atomic snipe execution with bribe transfers
• 🧪 Test Suite: Comprehensive contract testing
• 🚀 Deployment Scripts: Automated deployment tools

📖 Contracts Documentation →

🚀 Quick Start

Prerequisites

• Go 1.21+
• Foundry (latest)
• MySQL 8.0+
• Telegram Bot Token
• Base Network RPC

🛠️ Setup Instructions

1. Clone Repository:

git clone <repository-url>
cd sniper-bot

2. Backend Setup:

cd backend
cp .env.example .env
# Edit .env with your configuration
make setup

3. Contracts Setup:

cd contracts
forge install
forge build

4. Database Setup:

# Start MySQL container
docker run --name sniper-mysql \
  -e MYSQL_ROOT_PASSWORD=root_password \
  -e MYSQL_DATABASE=sniper_bot \
  -p 3306:3306 -d mysql:8.0

# Initialize database
cd backend && make db-migrate

5. Deploy Contracts:

cd contracts
forge script script/Sniper.s.sol:SniperScript \
  --rpc-url $BASE_RPC_URL \
  --private-key $PRIVATE_KEY \
  --broadcast

6. Start Services:

cd backend
make dev  # Starts both bot and RPC services

🐳 Docker Deployment

# Production deployment
docker-compose up -d

# View logs
docker-compose logs -f

💡 How It Works

For Snipers

1. Register via Telegram bot (/register)
2. Submit bids for upcoming tokens (/snipe <token> <bribe>)
3. Win based on highest bribe when LP is added
4. Profit from early token access

For Token Creators

1. Configure MetaMask to use custom RPC endpoint
2. Deploy token contract normally
3. Add liquidity through standard DEX interface
4. Receive automatic bribe payments from successful snipers

System Process

sequenceDiagram
    participant S as Sniper
    participant B as Bot Service
    participant R as RPC Proxy
    participant C as Smart Contract
    participant T as Token Creator
    
    S->>B: /snipe <token> 0.1 ETH
    B->>B: Store bid in database
    T->>R: Add liquidity transaction
    R->>R: Detect LP_ADD
    R->>B: Request snipe bundle
    B->>B: Sort bids by amount
    B->>R: Return ordered transactions
    R->>C: Execute snipe bundle
    C->>T: Transfer bribe (0.1 ETH)
    C->>S: Transfer tokens
    C->>B: Emit SnipeExecuted event

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📊 Key Features

🔐 Security Features

• Encrypted Wallet Storage: AES-256-GCM encryption for private keys
• Atomic Transactions: Smart contracts ensure bribe payment before token transfer
• Access Control: User isolation and permission management
• Input Validation: Comprehensive validation across all interfaces

⚡ Performance Features

• Connection Pooling: Efficient database connection management
• Indexed Queries: Optimized database performance
• Parallel Processing: Concurrent bid processing and bundle construction
• Gas Optimization: Efficient smart contract design

🛡️ Economic Security

• Slippage Protection: Minimum output validation in smart contracts
• Gas Price Ordering: Proper transaction ordering in bundles
• Deadline Enforcement: Time-limited transaction execution
• Emergency Controls: Owner-only recovery mechanisms

🔧 Configuration

Environment Variables

Component	Variables	Description
Backend	TELEGRAM_BOT_TOKEN	Bot authentication
	BASE_RPC_URL	Base network endpoint
	DATABASE_URL	MySQL connection
	ADMIN_PRIVATE_KEY	Admin wallet key
Contracts	PRIVATE_KEY	Deployment key
	UNISWAP_V2_ROUTER	DEX router address

📈 Monitoring

Health Checks

# Backend services
curl http://localhost:8080/health  # Bot service
curl http://localhost:8545/health  # RPC service

# Database connectivity
cd backend && make test-mysql

Key Metrics

• Snipe Success Rate: Percentage of successful executions
• Bundle Construction Time: Time to build transaction bundles
• Database Performance: Query execution times
• Gas Usage: Contract execution costs

🧪 Testing

Backend Tests

cd backend
make test              # Run all tests
make test-coverage     # With coverage report

Contract Tests

cd contracts
forge test             # Run all tests
forge test --gas-report  # With gas analysis

🤝 Contributing

1. Fork the repository
2. Create feature branch: git checkout -b feature/amazing-feature
3. Implement changes with tests
4. Test thoroughly: make test (backend) + forge test (contracts)
5. Submit pull request

Development Guidelines

• Comprehensive Testing: Maintain high test coverage
• Security First: Follow smart contract security best practices
• Documentation: Update docs for any interface changes
• Gas Optimization: Profile and optimize contract gas usage

🎯 Use Cases

DeFi Protocol Launches

• Token Creators: Maximize launch revenue through sniper bribes
• Snipers: Compete fairly for early access with transparent bidding
• Community: Reduced MEV extraction creates more equitable launches

MEV Infrastructure

• Searchers: Access structured MEV opportunities
• Builders: Integrate auction mechanisms into block building
• Validators: Capture value from structured MEV flows

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

⚠️ Legal Disclaimer

This software is provided for educational and research purposes only. Users are solely responsible for compliance with applicable laws and regulations. The authors disclaim all liability for any financial losses, legal issues, or other damages arising from the use of this software.

🆘 Support & Community

• 🐛 Issues: GitHub Issues
• 📚 Documentation: Check component-specific READMEs
• 💬 Community: Join our Discord server
• 🔒 Security Issues: Report privately to security@example.com

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🗂️ Repository Structure

sniper-bot/
├── 📁 backend/           # Go backend services
│   ├── 📁 pkg/          # Core packages
│   ├── 📁 services/     # Service implementations  
│   ├── 📁 scripts/      # Setup and utility scripts
│   ├── 📄 README.md     # Backend documentation
│   └── 📄 ARCHITECTURE.md
├── 📁 contracts/        # Smart contracts
│   ├── 📁 src/         # Solidity source code
│   ├── 📁 script/      # Deployment scripts
│   ├── 📁 test/        # Contract tests
│   └── 📄 README.md    # Contracts documentation
├── 📄 README.md        # This file
├── 📄 docker-compose.yml
└── 📄 LICENSE

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🚀 Built with ❤️ for the DeFi community - Transforming MEV from exploitation to fair competition