CODEWITHSUNDEEP
javascriptnode.jswebsocketsocket.io
Jarosław Osmólski
Jarosław Osmólski

Reputation: 250

Node.js socket.io with websocket

I'm begginer in Node.js or websocket. I have problem:

My HTML code:

<!DOCTYPE html>
<html>
    <head>
        <title>test</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    </head>
    <body>
        <script>
            "use strict";
            var gniazdo = new WebSocket('ws://localhost:3000');
            gniazdo.onopen = function(){ 
                 console.log('Połączono');
            };
            gniazdo.onmessage = function(m){ 
                console.log(m.data); 
            };
        </script>
    </body>
</html>

My Node.js code:

var io = require('socket.io')(3000);
io.on('connection', function(socket){
    console.log('a user connected');
});

I have error in console:

WebSocket connection to 'ws://localhost:3000/' failed: Connection closed before receiving a handshake response

Help plz :)

Upvotes: 5

Views: 3411

Answers (1)

ldmat
ldmat

Reputation: 1041

Your client is using WebSockets, but Socket.IO has its own protocol (that may be transported over WebSockets, but it can also be transported over other protocols). Change your client to use Socket.IO's own client:

<script src="https://cdn.socket.io/socket.io-1.1.0.js"></script>

<script>

    'use strict';

    var gniazdo = io('ws://localhost:3000');

    gniazdo.on('connect', function () {

        console.log('Połączono');

        gniazdo.on('message', function (m) {
            console.log(m.data);
        });

    });

</script>

Upvotes: 7

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