How can I integrate Socket.IO into my web application?

How can I integrate Socket.IO into my web application?

To integrate Socket.IO, first, install it using npm: npm install socket.io. Then, set up a server and client.

What are the basic steps to set up the server?

You need to create an HTTP server and attach Socket.IO to it. Here's a simple example:

const http = require('http');
const socketIo = require('socket.io');

const server = http.createServer();
const io = socketIo(server);

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

server.listen(3000, () => {
    console.log('Server is running on port 3000');
});

How do I connect the client to the server?

On the client side, include the Socket.IO client library and connect to the server like this:

<script src="https://cdn.socket.io/4.0.0/socket.io.min.js"></script>
<script>
    const socket = io('http://localhost:3000');
</script>