RESTful API backend for the IBM/Coursera Developing Back-End Apps with Node.js and Express final project. Supports book discovery, review retrieval, user registration, session + JWT authentication, and protected review management.

• Book APIs (all books, ISBN, author, title, reviews)
• User registration and login
• Session authentication (express-session)
• JWT authentication (jsonwebtoken)
• Protected add, modify, and delete review routes
• Async operations with Axios, Promises, and async/await
• Non-blocking Express handlers for concurrent access
• Postman collection included

• Node.js
• Express.js
• Express Session
• JSON Web Tokens (JWT)
• Axios
• REST API architecture

final_project/
├── index.js
├── booksdb.js
├── package.json
├── README.md
├── CURL_COMMANDS.md
├── Online-Book-Review.postman_collection.json
├── Online-Book-Review.postman_environment.json
└── router/
    ├── general.js
    └── auth_users.js

cd final_project
npm install
npm start

Server runs at: http://localhost:5000

Protected routes require an active session created via login. JWT is stored in:

req.session.authorization = {
  accessToken: '...',
  username: 'john'
}

Middleware verifyToken validates the JWT and returns 401 with { "message": "Unauthorized" } when invalid.

See CURL_COMMANDS.md for full commands and expected outputs.

Quick examples:

curl http://localhost:5000/books
curl http://localhost:5000/books/isbn/1
curl http://localhost:5000/books/author/Chinua%20Achebe
curl http://localhost:5000/books/title/Fall
curl http://localhost:5000/books/review/1

1. Import Online-Book-Review.postman_collection.json
2. Import Online-Book-Review.postman_environment.json
3. Run Register then Login (cookies stored automatically)
4. Run review endpoints

• index.js with Express, session, JWT middleware
• router/general.js — book routes + async Axios functions
• router/auth_users.js — register, login, review CRUD
• booksdb.js — in-memory book database
• Session + JWT authentication
• verifyToken middleware
• Postman collection (10 requests)
• cURL documentation
• README with API docs

Apache-2.0 (IBM Coursera educational project)