How to build a URL shortener with Node.js

The article provides a comprehensive guide on building a URL shortener service using Node.js and MongoDB, offering an alternative to popular services like Bitly and Cuttly. It highlights the advantages of creating a custom URL shortener, such as cost savings, data privacy, and the ability to use custom domains and track analytics. The process involves setting up a Node.js application with Express, connecting to a MongoDB database, and using Mongoose for schema creation. The guide explains how to generate and store shortened URLs, manage HTTP requests, and implement click tracking functionality. Additionally, it discusses the differences between URL shorteners and short link generators, emphasizing the benefits of a personalized approach for internal organizational use. The article includes practical steps for initializing the app, installing necessary dependencies, and coding the core functionality, with the complete source code available on GitHub for reference.