Configuration of Mosquitto Server to receive message from javascript
Question
I have a general question about Mosquitto and MQTT. I managed to setup a Server running Ubuntu and Mosquitto 1.4.2 with websockets ( tutorial here ). And I want so send some data from a Javascript Application using the mqttws31.js. Both work fine when subscribing to test.mosquitto.org but when I try to to send the "Hello world" to my own server I get a timeout.
What I tried is this:
ubuntu@instanz6:~$ mosquitto -c /etc/mosquitto/mosquitto.conf
1440670543: mosquitto version 1.4.2 (build date 2015-08-27 11:26:53+0200) starting
1440670543: Config loaded from /etc/mosquitto/mosquitto.conf.
1440670543: Opening websockets listen socket on port 9001.
1440670543: Opening ipv4 listen socket on port 1883.
1440670543: Opening ipv6 listen socket on port 1883.
and then open the html file shown below. I guess that I'm making a general error / missed a concept but I don't know how to continue ...
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<script src="js/mqttws31.js" type="text/javascript"></script>
<script type="text/javascript">
var wsbroker = "11.111.11.111";
var wsport = 1883;
var client = new Paho.MQTT.Client(wsbroker, wsport,
"myclientid_" + parseInt(Math.random() * 100, 10));
client.onConnectionLost = function (responseObject) {
console.log("connection lost: " + responseObject.errorMessage);
};
client.onMessageArrived = function (message) {
console.log(message.destinationName, ' -- ', message.payloadString);
};
var options = {
timeout: 3,
onSuccess: function () {
console.log("mqtt connected");
// Connection succeeded; subscribe to our topic, you can add multile lines of these
//client.subscribe('/World', {qos: 1});
//use the below if you want to publish to a topic on connect
message = new Paho.MQTT.Message("Hello");
message.destinationName = "/World";
client.send(message);
},
onFailure: function (message) {
console.log("Connection failed: " + message.errorMessage);
}
};
function init() {
client.connect(options);
}
</script>
</head>
<body onload="init();">
</body>
</html>
1 answers
solution1
2 ACCPTED 2015-08-27 10:38:52
You have got the port wrong in your JavaScript, it needs to be port 9001 you have configured for Websockets not 1883
...
var wsbroker = "11.111.11.111";
var wsport = 1883;
var client = new Paho.MQTT.Client(wsbroker, wsport,
"myclientid_" + parseInt(Math.random() * 100, 10));
...
Should be
...
var wsbroker = "11.111.11.111";
var wsport = 9001;
var client = new Paho.MQTT.Client(wsbroker, wsport,
"myclientid_" + parseInt(Math.random() * 100, 10));
...
solution2
0 2019-10-16 10:03:10
I was even getting the same error Connection failed: AMQJSC0001E Connect timed out.
port is open and through mobile app everything is working fine
Through web app only it was a failure in connection
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