Building a Real-Time Video Conferencing Web App with WebRTC, Node.js, and Socket.IO

Introduction Video conferencing has become essential in today's digital world. In this tutorial, we'll build a fully functional video conferencing application using WebRTC for peer-to-peer video streaming, Node.js for the backend, and Socket.IO for real-time signaling. Prerequisites Basic knowledge of JavaScript, Node.js, and HTML/CSS Node.js installed on your machine Understanding of client-server architecture What We'll Build A video conferencing app with: Multiple participant video streams Audio/video controls Room-based meetings Real-time participant management Project Structure video-conferencing/ ├── server/ │ ├── package.json │ ├── server.js │ └── public/ │ ├── index.html │ ├── style.css │ └── client.js Step 1: Setting Up the Backend First, let's create our Node.js server with Express and Socket.IO: mkdir server && cd server npm init -y npm install express socket.io server.js: const express = require ( ' express ' ); const http = require ( ' http ' ); const socketIo = require (