MERN Stack — React JS, Node JS, MongoDB, Express JS

What You’ll Learn
The MERN Stack is the most popular web development combination in the industry today. Build beautiful UIs with React, powerful APIs with Node.js + Express, and scalable databases with MongoDB — all together. With JWT authentication, Redux Toolkit, and AWS deployment, you will become a complete full-stack developer.
Benefits
- React JS — Hooks, Redux Toolkit, React Router
- Node.js — Event Loop, Streams, Modules
- Express JS — REST APIs, Middleware
- MongoDB — Aggregation, Mongoose ORM
- JWT Authentication & Security
- Socket.io — Real-time Features
- AWS/Vercel Deployment
- 5+ Complete MERN Projects
Curriculum
⚛️ Module 1 — React JS
- React Basics: JSX, Components, Props, State, Event Handling
- Hooks: useState, useEffect, useRef, useContext, useMemo, useCallback
- Custom Hooks, Higher-Order Components, Render Props
- React Router v6: Routes, Nested Routes, Protected Routes, useNavigate
- Redux Toolkit: createSlice, createAsyncThunk, RTK Query
- React Query: Data Fetching, Caching, Mutations
- Performance: React.memo, Lazy Loading, Code Splitting
- Forms: React Hook Form, Yup Validation
🖥️ Module 2 — Node.js & Express
- Node.js: Event Loop, Non-blocking I/O, Module System (CJS & ESM)
- npm Ecosystem, Package Management, Scripts
- Express: Routing, Middleware, Error Handling, Static Files
- REST API Best Practices: Versioning, Status Codes, Pagination
- Authentication: JWT, Refresh Tokens, bcrypt Password Hashing
- Role-Based Access Control (RBAC)
- File Uploads: Multer, Cloudinary Integration
- Email: Nodemailer, Sendgrid for OTP & Notifications
- API Security: Rate Limiting, Helmet, CORS, Input Sanitization
🍃 Module 3 — MongoDB & Mongoose
- MongoDB Basics: Collections, Documents, CRUD Operations
- Mongoose: Schema, Model, Validators, Middleware (Pre/Post hooks)
- Relationships: Populate, Embedded vs Referenced documents
- Aggregation Pipeline: $match, $group, $lookup, $project, $sort
- Indexes: Single, Compound, Text Search, TTL Indexes
- MongoDB Atlas: Cloud Setup, Connection, Monitoring
🚀 Module 4 — Advanced Features & Deployment
- Socket.io: Real-time Chat Application, Notifications
- Payment Integration: Razorpay / Stripe Checkout
- Testing: Jest, Supertest for API testing
- Docker: Containerizing MERN application
- Deployment: AWS EC2, S3 for Media, Vercel for React, PM2 Process Manager
- CI/CD: GitHub Actions for automated deployment
- Projects: Full E-Commerce Platform, Social Media App, Project Management Tool

