Capturing background requests with Puppeteer

Puppeteer can be very handy for getting background requests. There could be several background requests sent by a website. Curl, wget or selenium can not get you all those requests. Using Puppeteer we can collect and filter all requests. Below is the code snippet to get cloudflare urls sent by flightrader24.com

const puppeteer = require('puppeteer')
try {
	(async () => {
		const browser = await puppeteer.launch();
		const page = await browser.newPage();
		var cloudflare_urls = [];
		page.on('request', request => {
			if(request.url().includes('cloudflare')) {
				cloudflare_urls.push(request.url());
			}
		});
		await page.goto('https://www.flightradar24.com/data/airlines/arz');
		await browser.close();
		console.log(cloudflare_urls);
	})()
} catch (err) {
	console.error(err);
}

In the above Puppeteer snippet we are visiting url ‘https://www.flightradar24.com/data/airlines/arz’ and collecting all urls sent to Cloudflare.

[
  'https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css',
  'https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css',
  'https://cdnjs.cloudflare.com/ajax/libs/toastr.js/2.1.4/toastr.min.css',
  'https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js',
  'https://cdnjs.cloudflare.com/ajax/libs/moment-duration-format/2.2.2/moment-duration-format.min.js',
  'https://cdnjs.cloudflare.com/ajax/libs/URI.js/1.19.1/URI.min.js',
  'https://cdnjs.cloudflare.com/ajax/libs/localforage/1.4.3/localforage.min.js',
  'https://cdnjs.cloudflare.com/ajax/libs/highcharts/4.1.10/highcharts.js',
  'https://cdnjs.cloudflare.com/ajax/libs/toastr.js/2.1.4/toastr.min.js',
  'https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0'
]

This could be very handy to know the ajax or any other background requests sent by a website.

Capturing background requests with Puppeteer

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