socket io in node js code example

Example 1: install socket.io

npm i socket.io

Example 2: create a web server node js w socket.io

var app = require('express')();
var http = require('http').createServer(app);
var io = require('socket.io')(http);

app.get('/', (req, res) => {
  // Ran when a GET request to path '/'
  res.sendFile(__dirname + '/index.html');
});

io.on('connection', (socket) => {
  // Ran when a socket connected
});

http.listen(3000, () => {
  // Ran when server is ready to take requestes
});

Example 3: socket..io

<script src="https://cdn.socket.io/socket.io-3.0.1.min.js"></script>

Example 4: socket io node js

npm install socket.io

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