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20 posts tagged with "javascript"

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· 4 min read
Oleg Kulyk

How to use rotating proxies with Puppeteer?

Puppeteer is a high-level API to control headless Chrome. Most things that you can do manually in the browser can be done using Puppeteer, so it quickly became one of the most popular web scraping tool in Node.js and Python. Many developers use it for a single page applications (SPA) data extraction as it allows executing client-side Javascript. In this article, we are going to show how to set up a proxy in Puppeteer and how to spin up your own rotating proxy server.

· 4 min read
Oleg Kulyk

How to use Microsoft Edge with Playwright

Web scraping a website with the actually supported or other browsers has a real benefit in ensuring that the scraper will not be banned by the fingerprint or the behavioral pattern. Playwright already provides full support for Chromium, Firefox, and WebKit out of the box without installing the browsers manually, but since most of the users out there use Google Chrome or Microsoft Edge instead of the open-source Chromium variant, in some scenarios, it's safer to use them to emulate a more realistic browser environment.

· 5 min read
Oleg Kulyk

HTML Parsing Libraries - JavaScript

HTML is a simple structured markup language and everyone who is going to write the web scraper should deal with HTML parsing. The goal of this article is to help you to find the right tool for HTML processing. We are not going to present libraries for more specific tasks, such as article extractors, product extractors, or web scrapers.

· 4 min read
Oleg Kulyk

Top 5 Popular Javascript Libraries for Web Scraping in 2020

We’d like to continue the sequence of our posts about Top 5 Popular Libraries for Web Scraping in 2020 with a new programming language - JavaScript.

JS is a quite well-known language with a great spread and community support. It can be used for both client and server web scraping scripting that makes it pretty suitable for writing your scrapers and crawlers.

Most of these libraries' advantages can be received by web scraping API and some of these libraries can be used in stack with it.

So let’s check them out.

· 4 min read
Oleg Kulyk

Amazon product scraping

In the current article, I’d like to share my experience with Amazon products scraping. The well-known Amazon marketplace offers the best deals for thousands of product types and from thousands of sellers. The potential amount of data to scrape is quite insane and can be used for:

  • Market price comparison
  • Price change tracking
  • Analyzing product reviews
  • Copyright check
  • Finding the best products for selling or dropshipping
  • A lot of data science and machine learning stuff