Real Time Features

This gives you working patterns for WebSocket, SSE, and long polling implementations when you need live updates between client and server. It covers the usual suspects: chat apps, collaborative editing, live dashboards, real time notifications. The reference guides include a Node.js WebSocket server, React client setup, SSE streaming, and a production Socket.IO configuration. The best practices section is solid on the basics like reconnection logic, heartbeats, and connection limits. If you're building anything that needs instant bidirectional communication instead of polling every few seconds, this gets you started with the right patterns and helps you avoid the common mistakes around connection management and scaling.