Node.JS Android Play Store

Scraper.js

var request = require('request');
var cheerio = require('cheerio');

exports.getAppInfo = function(req, res) {
	url = 'https://play.google.com/store/apps/details?id=' + req.param('appId') + '&&hl=en';
	console.log('URL %s', url);
	var json = {
		app_name:"",
		package_name: req.param('appId'),
		icon: "",
		category: "",
		price:"",
		developer_name:"",
		rating: null,
		installs: ""
	};
	request(url, function(error, response, html) {
		if (!error) {
			var $ = cheerio.load(html);
			var title, release, rating;
			$('.cover-image').filter(function() {
				var data = $(this);
				json.icon = data.attr('src');
			})
			$('.document-subtitle').filter(function() {
				var data = $(this);
				json.category = data.children('span').text();
			})
			$('.content[itemprop="numDownloads"]').filter(function() {
				var data = $(this).filter(function(i, el) {
					// this === el
					return $(this).attr('itemprop') === 'numDownloads';
				});
				json.installs = data.text().trim();
			})
			
			$('meta[itemprop="price"]').filter(function() {
				var data = $(this).filter(function(i, el) {
					// this === el
					return $(this).attr('itemprop') === 'price';
				});
				json.price = data.attr('content');
			})

			
			$('.current-rating').filter(function() {
				var data = $(this);
				if(!json.rating)
					json.rating = Number(data.attr('style').replace(/[^0-9\.]+/g,""));
			})
			
			$('.document-title[itemprop="name"]').filter(function() {
				var data = $(this);
					json.app_name = data.text().trim();
			})
			
			$('span[itemprop="name"]').filter(function() {
				var data = $(this);
					json.developer_name = data.text().trim();
			})

			
		}
		res.json(json);
	})
}

Provides basic information about the app when method is called url/:appId for example com.example.app.