lzyd-map-h/node_modules/mqtt/examples/tls client/mqttclient.js

'use strict'

/** ************************** IMPORTANT NOTE ***********************************

  The certificate used on this example has been generated for a host named stark.
  So as host we SHOULD use stark if we want the server to be authorized.
  For testing this we should add on the computer running this example a line on
  the hosts file:
  /etc/hosts [UNIX]
  OR
  \System32\drivers\etc\hosts [Windows]

  The line to add on the file should be as follows:
  <the ip address of the server> stark
 *******************************************************************************/

var mqtt = require('mqtt')
var fs = require('fs')
var path = require('path')
var KEY = fs.readFileSync(path.join(__dirname, '/tls-key.pem'))
var CERT = fs.readFileSync(path.join(__dirname, '/tls-cert.pem'))
var TRUSTED_CA_LIST = fs.readFileSync(path.join(__dirname, '/crt.ca.cg.pem'))

var PORT = 1883
var HOST = 'stark'

var options = {
  port: PORT,
  host: HOST,
  key: KEY,
  cert: CERT,
  rejectUnauthorized: true,
  // The CA list will be used to determine if server is authorized
  ca: TRUSTED_CA_LIST,
  protocol: 'mqtts'
}

var client = mqtt.connect(options)

client.subscribe('messages')
client.publish('messages', 'Current time is: ' + new Date())
client.on('message', function (topic, message) {
  console.log(message)
})

client.on('connect', function () {
  console.log('Connected')
})