How to Build a REST API with Node.js and Express from Scratch (opens in new tab)

Have you ever wondered how mobile apps and websites get their data? The answer is usually an API. In this tutorial, you will build a working REST API from scratch using Node.js and Express. By the end, you will have an API that can create, read, update, and delete data — the four core operations of any real-world application. No prior API experience needed. If you know basic JavaScript, you are ready. What You Will Build A simple Books API that lets you: Get a list of all books Get a single b...