Why Should You Use Node.JS for Web Scraping?
In recent years, Node.js proved its worth as the lightweight and strong tool for data harvesting. Popularity of the platform is related to multitasking and ability to operate a number of different tasks for scraping with Node js simultaneously.
There would be even more problems in tasks that require collecting information from different pages. Troubles of this kind can be solved with the AJAX approach. Plus, you should remember that you can’t combine data collection from pages that are located in different domains.
Most of the Node.js data harvesting projects can be improved and powered up by several popular libraries that we will discuss further. First, you can try scraping with Node js and Puppeteer library and get the needed API for headless control in Chromium. Web scraping with Node js and Puppeteer can be useful for any projects that involve testing, web crawling and even rendering.
Alternatively, you can look at the web scraping with Node js and Cheerio option for comfortable and fast work with the server side of the project. Or look at the extension called JSDOM, that can provide you with a DOM environment for Node.js This way you can create your own DOM programs and further organize them with API that you already have.
Another useful library that can help you perform web scraping with Node js and requests to HTTP, called Axios. With this extension, you can work with HTTP clients both in browser and in Node.js. Alternatively, you can bring your attention to Selenium. This library provides support for multiple languages at the same time, which can help in case of automated testing. Data harvesting tasks in this library can be solved with help of headless browser utilization. Also, you can consider using static residential proxies to get fast access to any needed site.
The last library that we will look at is called Playwright. This extension has support for scripts for running tests and other useful features. For example, you can start using the browser as the tool with a prescribed set of actions. In a headless browser option, Playwright can be used as the instrument for web scraping in Node js with dynamic website.
Building a Web Scraper in Node.js
To start a project for data collection in Node.js, you should create an environment for further work. Install Node.js and add all the packages that might be needed for your scraping tasks. Almost all the extensions that we discussed before can be installed through the npm install commands.
Now you can begin with opening a new directory for your program. After this, locate the prompt and create a new file there for your harvesting code. Then, you can start processing HTTP calls for data that you are interested in. Node.js has ready-made solutions for these tasks, so you better use Axios or requests approach to start data collection. DevTools option of your browser can help to look at the page code more attentively and decide what tools and extensions are better to use for parsing. You can find it through the “Inspect” menu of your browser.
Frequently Asked Questions
Please read our Documentation if you have questions that are not listed below.
What proxies are the best for web scraping with Node.js?
Choice of proxies totally depends on your use case. For example, you can utilize residential proxies, for overcoming any access block and restriction you may face in scraping.
What benefits does Node.js have in case of web scraping tasks?
With Node.js for scraping, you can use the full potential of your system to increase speed and quality of all the processes. Plus, you can work with different pages at the same time.
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