// Modern Backend Developer Course Syllabus – 2025
✅ Module 1: Introduction (Theory + Motivation)
- What is Backend? Real-world examples
- What is Node.js? Why use it?
- How Node.js works (V8, non-blocking I/O)
- Series overview: What you will build
- Mini Task: Install Node.js & run a Hello Backend script
✅ Module 2: File System & Core Modules
- Create files & folders using fs and fs/promises
- Difference between writeFile vs writeFileSync
- Read files (JSON, text)
- Mini Task: CLI tool to create folder & write file
✅ Module 3: HTTP & Simple Server
- Create raw HTTP server with http module
- Serve basic text/JSON response
- Understand request & response objects
- Mini Task: Server that responds with name & age in JSON
✅ Module 4: path, os & events Modules
- Use path module for safe file paths
- Use os module to get system info
- Simple logger with events module
- Mini Task: Build a logger module using events
✅ Module 5: Intro to Express.js
- Why use Express.js over HTTP module
- Setup Express server
- Make basic GET & POST routes
- Mini Task: Express app that returns a welcome message
✅ Module 6: CRUD with Express & Dummy Data
- Create, Read, Update, Delete endpoints
- Test routes using Postman/Thunder Client
- Mini Task: In-memory notes API
✅ Module 7: Folder Structure & Middleware
- Best folder structure for Express projects
- What are middlewares? How they work
- Add logging middleware
- Mini Task: Custom middleware to show request time
✅ Module 8: MongoDB & Mongoose
- Setup MongoDB Atlas & connect
- Create Mongoose schema & model
- CRUD operations with MongoDB
- Mini Task: Save notes to MongoDB
✅ Module 9: Input Validation & Security
- Add input validation with Zod/Joi
- Protect APIs with Helmet & CORS
- Mini Task: Add validation to notes API
✅ Module 10: Authentication (JWT + bcrypt)
- Register user & hash password with bcrypt
- Login user & generate JWT
- Protect routes with JWT auth
- Mini Task: Secure notes API with JWT
✅ Module 11: Real-time (Optional)
- Setup socket.io with Express
- Broadcast messages in real-time
- Mini Task: Add live updates for notes
✅ Module 12: Deployment & Final Project
- Use dotenv for env variables
- Deploy backend on Render/Railway/Vercel
- Tips for production & GitHub best practices
- Mini Task: Deploy your final Task Manager API live