Real-time Trading Backend
A high-performance Node.js backend system designed for real-time cryptocurrency trading. Built with scalability and reliability in mind, supporting thousands of concurrent connections and microsecond-level order processing. Key Features Real-time Data Processing: WebSocket connections for live market data Order Management System: Advanced order matching and execution Risk Management: Real-time risk assessment and position monitoring Multi-Exchange Support: Connect to multiple cryptocurrency exchanges High Availability: Fault-tolerant architecture with automated failover Technical Stack Node.js & TypeScript Redis for caching and pub/sub PostgreSQL for persistent data WebSocket for real-time communication Docker & Kubernetes for deployment Prometheus & Grafana for monitoring Impact 99.99% uptime achieved in production Sub-millisecond order processing latency Handles 10,000+ concurrent WebSocket connections Processed over $1M in trading volume daily Architecture ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │ Client Apps │ │ Load Balancer │ │ API Gateway │ └─────────────────┘ └─────────────────┘ └─────────────────┘ │ │ │ └───────────────────────┼───────────────────────┘ │ ┌─────────────────────────────────────────────────────────┐ │ Trading Engine │ │ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │ │ │ Order Book │ │Risk Manager │ │ Position │ │ │ │ Engine │ │ │ │ Manager │ │ │ └─────────────┘ └─────────────┘ └─────────────┘ │ └─────────────────────────────────────────────────────────┘ │ ┌─────────────────────────────────────────────────────────┐ │ Data Layer │ │ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │ │ │ PostgreSQL │ │ Redis │ │ Time Series│ │ │ │ │ │ Cache │ │ Database │ │ │ └─────────────┘ └─────────────┘ └─────────────┘ │ └─────────────────────────────────────────────────────────┘ Code Example import { TradingEngine } from "./engine/TradingEngine"; import { OrderBook } from "./orderbook/OrderBook"; import { WebSocketServer } from "./websocket/WebSocketServer"; const engine = new TradingEngine({ redis: { host: "localhost", port: 6379 }, database: { host: "localhost", port: 5432 }, exchanges: ["binance", "coinbase", "kraken"], }); const orderBook = new OrderBook("BTC/USD"); const wsServer = new WebSocketServer({ port: 8080 }); // Real-time order processing wsServer.on("order", async (order) => { const result = await engine.processOrder(order); wsServer.broadcast("orderUpdate", result); }); // Start the trading engine await engine.start(); Performance Metrics Latency: < 1ms order processing Throughput: 100,000+ orders per second Concurrency: 10,000+ WebSocket connections Uptime: 99.99% availability Memory Usage: < 512MB under normal load Getting Started Clone the repository: git clone https://github.com/utkarshjosh/trading-backend.git cd trading-backend Install dependencies: npm install Configure environment: cp .env.example .env # Edit .env with your configuration Start the development server: npm run dev Documentation For detailed API documentation and deployment guides, visit our GitHub repository. ...