Node.js WebSockets Skill

Master real-time bidirectional communication for building chat apps, live notifications, collaborative tools, and real-time dashboards.

Quick Start

WebSocket server in 3 steps:

1. Setup Server - Socket.io or ws library
2. Handle Connections - Manage client lifecycle
3. Emit Events - Send/receive messages

Core Concepts

Socket.io Server Setup

const express = require('express');
const { createServer } = require('http');
const { Server } = require('socket.io');