Automate Push notification with Node acs

 function index(req, res) {
	res.render('index', {
		title : 'Our Test Automation App to send Push Notification'
	});
}

var schedule = require('node-schedule');
var request = require('request');
var moment = require('moment');
var storage = require('node-persist');
var ACS = require('acs-node');
var sdk = ACS.init('xxxxxxxxxxxxxxxxxxx');//add this with production/development app key of acs push notification cloud services
var then = "2013-12-11T16:12:21.636Z";

storage.initSync();
storage.setItem('then', then);

schedule.scheduleJob('*/10 * * * *', function() {
	request('http://mywebsiteurl/newsFeedLastUpdate.json', function(error, response, body) {
		if (!error && response.statusCode == 200) {
			var json = JSON.parse(body);
			var now = json.lastUpdated;
			var diff = moment(now).diff(storage.getItem('then'), "m");
			
			if (diff > 0) {
				console.log("difference in timestamp: " + diff);
				storage.setItem('then', now);

				var data = {
					login : "credential of the user you created for this app in acs panel", // App Admin User credentials
					password : "Its password"
				};

				sdk.rest('users/login.json', 'POST', data, function(data) {
					if (data && data.meta) {
						if (data.meta.status == 'ok') {
							console.log("Successful to login.");
							sendPushNotification(data.meta.session_id);
						} else {
							console.log("Error to login: " + data.meta.message);
						}
					} else {
						console.log("Error to login, try again later.");
					}
				});
			} else {
				console.log("No difference found in timestamp, nothing sent with push notification.");
			}
		}
	});
});


function sendPushNotification(session_id) {
	var data = {
		"_session_id":session_id,
		"to_ids":"everyone",
		"channel" : "mychannel",
		"payload" : {
			"alert" : "There are new articles in the Countdown Library"
		}
	};
	
	sdk.rest("push_notification/notify.json", 'POST', data, function(data) {
		if (data && data.meta) {
			if (data.meta.status == 'ok') {
				console.log(JSON.stringify(data.response.push_notification));
			}else{
				console.log("Error in sending push notification: " + data.meta.message);
			}
		} else {
			console.log("Error to login, try again later.");
		}
	});
}