index.js

var express = require('express');
var socket = require('socket.io');

var application = express();
var server = application.listen(5000, function () {
	console.log('Your Server Is runing at http:/localhost:5000');
});

application.use(express.static('public_html'));

var sio = socket(server);

sio.on('connection', function (visitor) {
	console.log('we have a new visitor as id=>', visitor.id);

	visitor.on('message', function (data) {
		sio.sockets.emit('new_msg', data);
	});
	visitor.on('fileMessage', function (data) {
		sio.sockets.emit('fileMessage', data);
	});
	visitor.on('deletemessageid', function (data) {
		sio.sockets.emit('new_deletemessageid', data);
	});

	visitor.on('borad', function (data) {
		visitor.broadcast.emit('new_borad', data);
	});

	visitor.on('sharingId', function (data) {
		visitor.broadcast.emit('sharingId', data);
	});

	visitor.on('sharingIdForimage', function (data) {
		visitor.sockets.emit('sharingIdForimage', data);
	});
});