Uncaught Error: Module "MQTT" not found

[espruino-discuss]

Posted at 2017-11-20 by Alexander

Did not see the MQTT module. More can that where to disable that would work MQTT.

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>var server = "m14.cloudmqtt.com";
="m14.cloudmqtt.com"
={
  "client_id": "random",
  "keep_alive": 60, "port": 15577, "clean_session": true,
  "username": "",
  "password": "",
  "protocol_name": "MQTT",
  "protocol_level": 4 }
>var mqtt = require("MQTT").create(server, options);
Uncaught Error: Module "MQTT" not found
 at line 1 col 26
var mqtt = require("MQTT").create(server, options);
                         ^

[espruino-discuss]

Posted at 2017-11-20 by Wilberforce

You need to upload the code in the right side of the ide, it appears you are entering the code on the left.

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Posted at 2017-11-20 by Alexander

Can't connect to https://api.cloudmqtt.com. What's wrong? Is this even possible?

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Posted at 2017-11-20 by Alexander

This is my code:

var server = "m14.cloudmqtt.com";
 var options = {
    client_id : "random",
    keep_alive: 60,
    port: 35577,
    clean_session: true,
    username: "ciugi**",
    password: "eYV1i*****",
    protocol_name: "MQTT",
    protocol_level: 4,
  };
  var mqtt = require("MQTT").create(server, options);
  mqtt.on('connected', function() {
    mqtt.subscribe("test");
  });
  mqtt.on('publish', function (pub) {
    console.log("topic: "+pub.topic);
    console.log("message: "+pub.message);
  });
var wifi = require("Wifi");
function onInit() {
   wifi.stopAP();
   wifi.connect("INGRIFAB", {password: "B73vFeX6se2"}, function(err) {
        if(err)console.log(err);else console.log("connected!");
        console.log(wifi.getIP().ip);
        });
}
var server = "m14.cloudmqtt.com";
 var options = {
    client_id : "random",
    keep_alive: 60,
    port: 35577,
    clean_session: true,
    username: "ciugi**",
    password: "eYV1i*****",
    protocol_name: "MQTT",
    protocol_level: 4,
  };
  var mqtt = require("MQTT").create(server, options);
  mqtt.on('connected', function() {
    mqtt.subscribe("test");
  });
  mqtt.on('publish', function (pub) {
    console.log("topic: "+pub.topic);
    console.log("message: "+pub.message);
  });
var wifi = require("Wifi");
function onInit() {
   wifi.stopAP();
   wifi.connect("INGRIFAB", {password: "B73vFeX6se2"}, function(err) {
        if(err)console.log(err);else console.log("connected!");
        console.log(wifi.getIP().ip);
        });
}
wifi.save();
save();

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Posted at 2017-11-20 by @gfwilliams

Maybe try and connect with an MQTT client on a local computer first to check it works?

It's also worth noting that Espruino on ESP8266 won't do TLS (needed for secure MQTT), which I guess could be causing you problems?

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Posted at 2017-11-20 by Alexander

Understood! It works!!! Just the ports were closed

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Posted at 2017-11-20 by Alexander

Here is the working code! Whom it is necessary.

 var server = "m14.cloudmqtt.com";
 var options = {
 keep_alive: 60,
  port: 15577,
username: "ciug****",
password: "eYV1ivU****",
protocol_name: "MQTT",
protocol_level: 4
};
var mqtt = require("MQTT").create(server, options);
var wifi = require("Wifi");
function onInit() {
 wifi.stopAP();  
      wifi.connect("AndroidAP", {password: "tssu7350"}, function(err) { 
        if(err)console.log(err);else console.log("connected!");
        console.log(wifi.getIP().ip);
      wifi.getStatus(function(ap) {
         if(ap.station === 'connected'){
    print("START...");
    mqtt.on('connected', function() {
     print("connect!!!");
    mqtt.subscribe("test");
    });
    mqtt.on('publish', function (pub) {
      console.log("topic: "+pub.topic);
      console.log("message: "+pub.message);
    });
    mqtt.on('disconnected', function() {
      print("disconnected!!!");
     console.log("MQTT disconnected... reconnecting.");
     setTimeout(function() {
      mqtt.connect();
      print("mqtt connect");
     }, 2000);
     });
mqtt.connect();
      }
    });
  });
}
wifi.save();
save();

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Posted at 2017-11-20 by Alexander

Are only outgoing messages. Why? The function mqtt.on('publish', mqttMessage); - not working

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Posted at 2017-11-20 by @gfwilliams

Have you subscribed to what you are interested in? Usually topics start with a /, so you might need mqtt.subscribe("/test");

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Posted at 2017-11-20 by @allObjects

PS... on a side note: @alexander, when you include code in posts, place it between two line that have only three (3) 'back-ticks' at the beginning and make sure there is an empty line before and after the lines with the back-ticks. This way all your code is furnished with line numbers, shows in one block, and is much more legible.

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Posted at 2017-11-20 by Alexander

Is that better? :)

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Posted at 2017-11-21 by @allObjects

Perfect! ;-)

Btw, now I noticed, that save() is part of your code you upload... is it?

I'm not sure if it is bad, but it kind of tickles my guts the wrong way... @gfwilliams will for sure know. I keep the save() out of upload business, and even the direct onInit() or any other heavy activity in level 0...

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Posted at 2017-11-21 by @gfwilliams

Yes, as @allObjects says I'd avoid using save() right at the end of code you upload, and would do it manually.

If you want to save immediately when you send, you're probably better off using save on send in the IDE options.

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Posted at 2017-11-22 by Alexander

Thank you! Very useful tips.