Chat App Using Socket.io

<h2>Introduction</h2>
<p>This tutorial will guide you to build a real-time chat application using Node.js backend and Socket.io for real-time communication.</p>

<h3>Tech Stack</h3>
<ul>
  <li>Node.js & Express – Backend server</li>
  <li>Socket.io – Real-time WebSocket communication</li>
  <li>React – Frontend UI</li>
</ul>

<h3>Features</h3>
<ul>
  <li>Real-time messaging between multiple users</li>
  <li>Chat rooms support</li>
  <li>User join/leave notifications</li>
  <li>Responsive and interactive UI</li>
</ul>

<h3>Code Example</h3>
<pre><code>{`// Socket.io server setup

const io = require('socket.io')(server);

io.on('connection', (socket) => { console.log('New user connected');

socket.on('chat message', (msg) => { io.emit('chat message', msg); });

socket.on('disconnect', () => { console.log('User disconnected'); }); });`}</code></pre>