MQTT+Mosquitto+Javascript in windows

Question

I am new in MQTT so can someone help me for connecting MQTT with Mosquitto using javascript i am using this code but it give error...

Connection failed: AMQJS0007E Socket error:undefined.

My Code is :

<script type='text/javascript' src='jquery-1.10.1.js'></script>

<script type='text/javascript' src="mqttws31.js"></script>


    var client = new Messaging.Client("ns.testingindia.tld", 1883, "myclientid_" + parseInt(Math.random() * 100, 10));

     //Gets  called if the websocket/mqtt connection gets disconnected for any reason
     client.onConnectionLost = function (responseObject) {
         //Depending on your scenario you could implement a reconnect logic here
         alert("connection lost: " + responseObject.errorMessage);
     };

     //Gets called whenever you receive a message for your subscriptions
     client.onMessageArrived = function (message) {
         //Do something with the push message you received
         $('#messages').append('Topic: ' + message.destinationName + '  | ' + message.payloadString + '
');
     };

     //Connect Options
     var options = {
         timeout: 3,
         //Gets Called if the connection has sucessfully been established
         onSuccess: function () {
             alert("Connected");
         },
         //Gets Called if the connection could not be established
         onFailure: function (message) {

            document.write("Connection failed: " + message.errorMessage);
             alert("Connection failed: " + message.errorMessage);
         }
     };

     //Creates a new Messaging.Message Object and sends it to the HiveMQ MQTT Broker
     var publish = function (payload, topic, qos) {
         //Send your message (also possible to serialize it as JSON or protobuf or just use a string, no limitations)
         var message = new Messaging.Message(payload);
         message.destinationName = topic;
         message.qos = qos;
         client.send(message);
     }
    //]]>

jpmens jpmens · Accepted Answer · 2014-08-20T13:49:24

You are connecting to port 1883 which is the default MQTT port. I assume you mean to use Websockets, and that would typically be configured on a different port number. If the broker you're using has Websocket support, ensure you connect to the correct port with Messaging.Client().

If you're using the Mosquitto broker, you'll need version 1.4 from its bitbucket repository for Websocket support, but note that Mosquitto 1.4 hasn't yet been released.

MQTT+Mosquitto+Javascript in windows

3 Answers