What exactly is Puppeteer? It's a Node.js library which provides a high-level API to control headless Chrome or Chromium or to interact with the DevTools protocol. Web development heavily relies on testing mechanisms for the quality checks before we push them into the production environment. A complex…
Web development heavily relies on testing mechanisms for the quality checks before we push them into the production environment. A complex website will require a complex structure of test suites before we deploy it anywhere. Headless browsers considerably reduce the testing time involved in web development as there is no overhead of any UI. These browsers allow us to crunch more web pages in lesser time.
In this blog, we will learn to scrape websites on these headless browsers using Puppeteer Js and asynchronous programming. Before we start with scraping websites, let us learn more about the Puppeteer Js.
Puppeteer is an API library with the DevTools protocol to control Chrome or Chromium. It is usually headless but can be set to operate Chrome or Chromium in its whole (non-headless). Furthermore, Puppeteer is a library of nodes that we can use to monitor a Chrome instance without heads (UI).
In this article, we will be using puppeteer to scrape the product listing from a website. Puppeteer will use the headless chrome browser to open the web page and query back all the results. Before we start actually implementing puppeteer for web scraping, we will look into its setup and installation.
After that, we will implement a simple use case where we will go to an e-commerce website and search for a product and scrape all the results. All the above tasks will be programmatically handled by using the puppeteer library. Furthermore, we will use the node js language to accomplish the above-defined task.
Download the Node js from the official site and install it.
You can use the below command to install the puppeteer package
npm install — save puppeteer
Since we have all the dependencies installed now, we can start implementing our scraping use case using puppeteer. We will be controlling actions on the website using our node JS program powered by the puppeteer package.
Step1: Visiting the page and searching for a product
In this section, we will initialize a puppeteer object first. This object has access to all the utility functions available in the puppeteer package. In this section, our program visits the website, then it searches for the product search bar on the website. Upon finding the search elements, it types the product name in the search bar and loads the result. We gave the product name to the program using the command line arguments
ere is a beginner friendly introduction for Web Scraping with Puppeteer and Nodejs. We are doing a small project that scrapes very easily details off the IMDB Movie Website.
This article includes five puppeteer tricks (with code examples), which I believe help you better scrape the web and avoid detection. Puppeteer probably is the best free web scraping tool on the internet. It has so many options and is very easy to use once you get the hang of it. The problem with it is that it is too complicated and the average developer might be overwhelmed by the vast options it offers.
Ultimate guide to web scraping using Node.js and Puppeteer.
In this video I'm going to be scraping aqicn.org using Puppeteer 🔴 Subscribe for more https://www.youtube.com/channel/UCMA8gVyu_IkVIixXd2p18NQ?sub_confirmati...