sample connect to sniot mqtt

index.js

//index.js
var pwd = 'replace with password'
var opt = {username: "subscribe",port: 8883 ,password: pwd, rejectUnauthorized: false}
var mqtt = require('mqtt')
var client  = mqtt.connect('mqtts://broker.iotdemo2-dev.sniot.net', opt)

client.on('connect', function () {
    client.subscribe('sniothub/rules/message', function (err) {
        if (!err) {
            console.log("successfully connected")
        }
    })
})

client.on('message', function (topic, message) {
    // message is Buffer
    console.log(message.toString())
    client.end()
})