How to Build a Real-Time Trading Dashboard with Socket.io and trade-data-generator Building a trading UI is exciting — until you realize you need live market data to test it. Real data feeds cost thousands per month. Free APIs have rate limits. Hardcoded data looks broken on charts. In this tutorial we'll build a fully working real-time trading dashboard in under 30 minutes using trade-data-generator and Socket.io — no API keys, no rate limits, no cost. Here's what we're building: Live candlestick chart updating in real-time Order book depth with bids and asks Price ticker with 24h stats Multi-symbol support (crypto, equity, forex) Prerequisites Node.js 14+ Basic knowledge of Express and Socket.io Setup Create a new project: mkdir trading-dashboard cd trading-dashboard npm init -y npm install trade-data-generator socket.io express Enter fullscreen mode Exit fullscreen mode Project structure trading-dashboard/ server.js public/ index.html Enter fullscreen mode Exit fullscreen mode Step 1 — Set up the server…