NODE.JS BASIC SETUP – (BEGINNER)

1️⃣ Node.js & npm Installation Check

Command Prompt / Terminal:

Expected Output:

👉 Agar version aa raha hai → Node & npm installed ✅

2️⃣ Project Folder Location

Node project kahin bhi ho sakta hai (htdocs zaroori nahi)

Example:

Node ko folder location se koi farak nahi padta.

3️⃣ Project Open in VS Code

VS Code → File → Open Folder
Select:

Terminal open:

Ctrl +


Terminal path check:






PS E:\node-project\node-shop>




4️⃣ Node Project Initialize






npm init -y



👉 Ye package.json banata hai
(CI4 ke composer.json jaisa)

5️⃣ Required Packages Install






npm install express mysql2 dotenv cors

npm install -D nodemon



Packages use:


express → framework


mysql2 → MySQL connection


dotenv → env config


cors → API access


nodemon → auto server restart (dev)



6️⃣ Folder Structure (CI4 style)






node-shop/

 ├─ src/

 │  ├─ controllers/   → Logic (CI4 Controllers)

 │  ├─ routes/        → Routes (CI4 Routes.php)

 │  ├─ db/            → Database config

 │  └─ app.js         → Entry point

 ├─ .env

 ├─ package.json

 └─ node_modules/




7️⃣ app.js (First Node Server)
📄 src/app.js

const express = require('express');

const app = express();
app.use(express.json());
app.get('/', (req, res) => {

  res.send('Node server chal raha hai bhai 😎');

});

const PORT = 3000; app.listen(PORT, () => { console.log(Server running on http://localhost:${PORT}`); });

8️⃣ package.json Scripts Setup

📄 package.json me scripts section:

👉 npm run dev = development mode
👉 npm start = normal mode

9️⃣ Server Run Command

Expected Terminal Output:

🔟 Browser Test

Open browser:

Output:

👉 Matlab:

Node working ✅
Express working ✅
Setup complete ✅

🧠 CI4 → Node Mindset Mapping (Quick)

CI4	Node
Apache + index.php	Node server + app.js
Routes.php	routes/*.js
Controllers	controllers/*.js
php spark serve	npm run dev

🎯 Current Status

✔ Node installed
✔ npm working
✔ Project setup
✔ Express server running

🔜 NEXT TOPIC (Future Notes)

MySQL connection (XAMPP)
CRUD (GET / POST / PUT / DELETE)
Admin panel + User website
JWT login
E-commerce flow

1️⃣ Node.js & npm Installation Check

Command Prompt / Terminal:

Expected Output:

2️⃣ Project Folder Location

3️⃣ Project Open in VS Code

4️⃣ Node Project Initialize

5️⃣ Required Packages Install

Packages use:

6️⃣ Folder Structure (CI4 style)

7️⃣ app.js (First Node Server)