Web scraping is the process of programmatically extracting data from web pages, and it has various applications such as research, data archiving, and training AI models. This tutorial focuses on using Cheerio, an HTML parsing library, alongside Node.js to create a scraper capable of capturing data from web pages and saving it in JSON format. The guide outlines setting up a Node.js environment, installing necessary dependencies like Axios and Express.js, and building a web scraper specifically targeting Amazon.com to extract product details such as title, price, and link. It also emphasizes the importance of adhering to legal and ethical guidelines while scraping. The tutorial includes instructions on setting up an automated testing pipeline using Jest and Supertest, and configuring a continuous integration process with CircleCI to ensure code reliability and facilitate ongoing development. The project is a practical exercise in building automated web scraping and testing workflows, demonstrating the integration of web scraping with modern development practices.