node-red-contrib-barco-sources-bing/mqttUtils.js

utility to get map information using bing

"use strict";
let _client = null;
module.exports = {	
	publishEvent: function(basePath, callback){		
		const mqtt = require('mqtt');
		let url = `mqtt://${process.env.MQTT_BROKER}:${process.env.MQTT_PORT}`; 
		//dev purposes
		//let url = 'mqtt://10.51.49.122:10101';
		
	    let options = {
	      clientId: 'notification_' + ( 1+ Math.random()*4294967295).toString(16),
	      username: 'barco',
	      password: 'b4rc0,BCD',
	      keepalive: 6,
	      reconnectPeriod: 1000,
	      clean: true
	    };
	  
		_client  = mqtt.connect(url,options);		 
		_client.on('connect', function () {
		 //_client.subscribe('/com/barco/analytics/map/bing');
		 _client.publish('/com/barco/analytics/map/bing', basePath+'/incidents/bing');		
		  callback();
		});
		 _client.on('message', function (topic, message) {
	      console.log("Received message from " + topic+ ":: message: "+message);
	    });
		_client.on('error', function (err) {
			console.log("Error is connecting : "+url, err);
			callback(err);
		});
	},
	closeConnection: function(callback){
		if(_client!=null){
			_close.end();
			_client = null;
		}
	}

}