Build a Custom JSON Database from Scratch with Node.js fs & Express! || Part 1
🚀 Don't want to set up a heavy database like MongoDB or SQL for your next small project? In this video, we build a lightweight, fully functional JSON file-based database from scratch using the Node.js File System (fs) module and Express.js!
You will learn how to handle asynchronous file operations to read and write data safely, structure your Express API routes (GET, POST, PUT, DELETE), and manage data persistence like a pro.
📌 What You Will Learn:
00:00 - Introduction & Project Demo
01:45 - Setting up Express.js & JSON File Structure
03:30 - Deep Dive: fs.readFile vs fs.promises for Data Fetching
06:15 - Implementing the GET Route (Reading Data)
08:45 - Implementing the POST Route (Parsing & Writing Data with fs.writeFile)
12:10 - Updating & Deleting Records (PUT & DELETE Routes)
15:30 - Edge Cases: Handling Race Conditions & Empty JSON Files
18:00 - Summary & When to Use File Storage vs Real Databases
Full source code is explained step-by-step. If you enjoy this hands-to-the-keyboard tutorial, leave a 👍 LIKE and 🔔 SUBSCRIBE for more backend guides!
#NodeJS #ExpressJS #BackendDevelopment #WebDevelopment #JavaScript #CodingProject #RESTAPI