Express Server Setup — Full Explanation | MERN Task Manager #2

In this video, we start building the backend of our MERN Task Manager app from scratch. We will set up our Express server, understand ES Modules, configure dotenv, and add cors middleware. By the end of this video — our server will be running and ready for the next steps. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📌 WHAT YOU WILL LEARN - Initialize a Node.js project with npm init - What is type module and ES imports - Install and set up Express - What is cors and why we need it - What is dotenv and how to use .env file - Add scripts — start and dev with nodemon - Run the server and test it in browser ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🗂️ COMPLETE SERIES PLAYLIST https://www.youtube.com/playlist?list=PLKIziyQytJbv0yXO5jVj58HAvquZdGjFz ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📌 ALL VIDEOS IN THIS SERIES #1 - Project Intro + Demo #2 - Backend Setup — Express + dotenv + cors (This Video) #3 - MongoDB Connection + Mongoose #4 - Task Model + Schema #5 - CRUD Controllers #6 - Routes + Postman Testing #7 - Frontend Setup — Vite + React + Tailwind CSS #8 - Fetch + Display Tasks #9 - Add + Delete Tasks #10 - Complete Task + Full Project Review ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ TOOLS USED - Node.js — nodejs.org - VS Code — code.visualstudio.com ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📦 PACKAGES INSTALLED IN THIS VIDEO - express - cors - dotenv - nodemon (dev dependency) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📁 FILES CREATED IN THIS VIDEO server/ ├── src/ │ └── index.js ├── .env ├── .gitignore └── package.json ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ If this helped you, please like and subscribe to jdcodebase. It really helps the channel grow. #mern #mernstack #nodejs #expressjs #backendsetup #webdevelopment #beginners #javascript #jdcodebase