apache node js socket.io error connection refused

Question

There is a php-file on apache:

<script src="/../node_modules/socket.io/client-dist/socket.io.js"></script>

let socket = io.connect( 'http://localhost:3000' );

socket.on('update', function updateData(sounds) {
    console.log(sounds);
});

and node js in same directory

let http = require('http');
let express = require('express');
let path = require('path');
let socketIO = require('socket.io');
let app = express();
let server = http.Server(app);
let io = socketIO(server);

app.set('port', 3000);

server.listen(3000, function() {
   console.log('listening on *:3000');
});

io.on('connection', function(socket) {
   console.log('A user connected');
  
   socket.on('disconnect', function() {
      console.log('A user disconnected');
   });
   
});

browser throws an error: GET http://192.168.100.31/socket.io/?EIO=4&transport=polling&t=NxOsf3z 404 (Not Found)

if replace let socket = io.connect( 'http://localhost:3000' ) on let socket = io.connect( 'http://192.168.100.31:3000' ); browser will give another error: Access to XMLHttpRequest at 'http://192.168.100.31:3000/socket.io/?EIO=4&transport=polling&t=NxOt0X0' from origin 'http://192.168.100.31' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Matt · Accepted Answer · 2022-02-09 19:28:24Z

2

Just had to replace

let socket = io.connect( 'http://localhost:3000' );

with

let socket = io.connect( 'http://192.168.100.31:3000/' );

edited Feb 9, 2022 at 19:28

Matt

7309 silver badges27 bronze badges

answered Feb 8, 2022 at 11:53

young_protokaa42

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