Website content changes monitor

website_monitor.js

// Required libraries. In OSX you may also need terminal-notifier (sudo gem install terminal-notifier)
var opener = require('opener');
var request = require('request');
var cheerio = require('cheerio');
var notifier = require('node-notifier');

// Settings
var url = 'http://www.beachhousebaltimore.com/';
var town = "Barcelona";
var timeIntervalInSeconds = 60;

// Start tracking at time intervals
setInterval( function(){
    // Get the website
    request(url, function(err, resp, body) {
        if (err)
            throw err;
        // find the element we want
        $ = cheerio.load(body);
        var ticketLink = $( 'li:contains("'+ town +'")' )[0].children[2].attribs.href;

        // Get the current time
        var now = new Date();
        var timestamp = now.getHours()+":"+now.getMinutes()+":"+now.getSeconds();

        // Is there a link available?
        if( ticketLink != "#" )
        {
            // Yeah! notify!
            console.log( "Tickets link found for "+town+"! ["+timestamp+"]: " + ticketLink );
            notifier.notify({
              title: 'Beach House watcher',
              message: "Hey bro, Beach House Tickets are now AVAILABLE!!! " + ticketLink,
              wait: true // wait with callback until user action is taken on notification
            }, function (err, response) {} );
            
            // Capture notification click (when notification clicked, open website)
            notifier.on('click', function ( notifierObject, options) {
                console.log( "Notification clicked, let's go!" );
                opener(ticketLink);
            });
        }else{
            // Grrr.... keep waiting..
            console.log( "Tickets link NOT found, keep waitting... ["+timestamp+"]" );
        }
    });
}, timeIntervalInSeconds*1000 );