expressJS and socket.io listening to different ports and socket.io client connect

Question

So I have a nodejs application which uses socket.io and expressjs

I use port '3000' for the express app and port '8080' for the socket app

Is it possible to use the same port for both these services?(express and socket.io)
When i want to connect to a socket from the client, I use the following code:

var socket = io('http://localhost:8080')

whats the right way of connecting to it( I see various ways in tutorials across the internet) and have no clue.

I don't if it can help but you might wanna check this similar issue with answer stackoverflow.com/questions/48198835/socket-io-404-error/… — Marlon Buendia
– Marlon Buendia, Commented Jan 15, 2018 at 2:29

RIYAJ KHAN · Accepted Answer · 2017-01-19 09:35:38Z

Is it possible to use the same port for both these services?(express and socket.io)

yes

var app = require('express')(); var server = require('http').createServer(app); var io = require('socket.io')(server); server.listen(8080); //or 3000

When i want to connect to a socket from the client, I use the following code:

At the front end :

include socket.io lib

<script src="/socket.io/socket.io.js"></script> <script> var socket = io.connect('http://localhost:8080'); //or 3000 </script>

EDIT : without express

var app = require('express').createServer(); var io = require('socket.io')(app); app.listen(8080);

For more info socket.io

Do I need to use the http module for socket.io or can I use express?
For socket you need install socket.io and for express you need it express
var server = require('http').createServer(app); var io = require('socket.io')(server);. I meant that. Do I need to require the http module ? It can I use 'var up=require ('socket.io').(app)

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