
Web Scraping, Web Harvesting, or Web Data Extraction means gathering selective data or information across the web. Nowadays, startups and freelancing businesses who want to start domain-specific projects target data collecting. Suppose you want to buy a product; the first thing you will do is find the product’s price on an eCommerce website. It looks easy, but what when you need to do this exercise for thousands of products across various eCommerce websites? Here comes the web scraping role. Let’s dive deeper and learn this amazing technique from scratch.
Before You Begin
Planning your track is crucial before you start with the process. The process is divided into two parts, these are:- Fetching data using a headless browser and request libraries.
- Extracting the required data from the available data source through Parsing.
- Node.js (preferably the latest LTS version) NPM node running on your machine
- NPM modules installed and running
- . A basic understanding of Web Scraping, CSS selectors, or Xpath will be helpful.
Steps to Web Scraping using Javascript and NodeJs
Ensure your NodeJs are successfully installed. In this process, you will use cheerio and node-fetch packages for web scraping using JavaScript. To work with any third-party package, you must set up the project with the npm first.Here’s how to complete the setup:- First, create a “web_scraping” directory and then navigate to it.
- After directory creation, run the “npm init” command for project initialization.
- As per your preference, answer the question asked during creation.
- Lastly, use the “npm install node-fetch cheerio” command to install the packages.
node-fetch
cheerio
Advantages Of Web Scraping Solutions
Web Scraping plays a pivotal role in achieving success and developing the business, mostly when you are starting from scratch. Here are some Web scraping advantages and processes :Save Cost
Result Accuracy
Time To Market Advantage
High Quality
Conclusion
That’s about how to scrape web pages with Node.js and JavaScript to render meaningful HTML. Well, there’s a smart way to make this process simple and quick. You can refer to Relu Consultancy to perform data scraping in no time. At Relu Consultancy, a team of engineers and data scientists will build the best and most accurate data-scraping solution as per your need to help your business grow exponentially. Furthermore, with Relu Consultancy, you will also get-- Efficient data scraping services with cutting-edge technology,
- Flexible scraping process to serve with scalable,
- Secure and outcome-driven solutions.
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