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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 :)

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 :)

  • javascript
  • node.js
  • websocket
  • socket.io
Share Improve this question asked Oct 16, 2014 at 19:46 Jarosław OsmólskiJarosław Osmólski 2503 silver badges14 bronze badges 1
  • Socket.io first tests the connection with long-polling and upgrades to websockets if they are supported. You need to use the socket.io client library. – Ben Fortune Commented Oct 16, 2014 at 20:30
Add a ment  | 

1 Answer 1

Reset to default 7

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>

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