How do I establish a Socket.IO connection?

How do I establish a Socket.IO connection?

To establish a Socket.IO connection, you need to include the Socket.IO client library in your project and connect to the server using the io() function.

What do I need on the server side?

On the server side, you need to set up a Node.js server and include the Socket.IO library. Then, you can create a Socket.IO instance and listen for connections.

Can you show me a simple example?

Sure! Here's a basic example:

// Server-side code: const io = require('socket.io')(3000); io.on('connection', socket => { console.log('New user connected'); });

// Client-side code: const socket = io('http://localhost:3000');

This will log a message when a new user connects.

What if I want to send messages between the client and server?

You can use the emit method to send messages. For example, on the client side, you can do socket.emit('message', 'Hello Server!'); and on the server side, listen for it using socket.on('message', (msg) => { console.log(msg); });.