Overview

In this codelab, you’ll learn to build a CRUD API for a to-do app using Express.js and MongoDB. Starting from project setup, we'll cover the implementation of key features like creating, reading, updating, and deleting tasks. You’ll also explore how to structure your data with Mongoose schemas and make your API more dynamic with filtering and validation. To help you understand the code thoroughly, we break down each section into "What it does" and "Why", ensuring clarity on both functionality and purpose. By the end, you’ll have a working backend for task management and a solid grasp of building CRUD APIs, ready to be extended with features like authentication or a frontend interface.