telegram.js

var jobName_telegram = "sendStatus";
var kue = require('kue-scheduler');
var Queue = kue.createQueue();

function checkStatus(job, done){
  Parse.Cloud.httpRequest({
    method: 'POST',
    url: 'https://api.telegram.org/botYOUR_API_BOT/sendMessage?chat_id=YOUR_CHAT_ID',
    params: {
      text : 'Server is running.'
    },
    headers: {
      'Content-Type': 'application/json;charset=utf-8'
    }
  }).then(function(httpResponse) {
      done();
  }, function(httpResponse) {
      done(new Error(httpResponse.status));
  });
}

function initCheckStatus(){
  Queue.clear(function(error, response) {
      var job = Queue
                  .createJob(jobName_telegram)
                  .priority('normal')
                  .removeOnComplete(true);
      Queue.every('3 hours', job);
      Queue.process(jobName_telegram, checkStatus);
  });
}

exports.initCheckStatus = initCheckStatus;