📚 Book Management Store – Spring Boot Application

A secure and user-friendly Book Management System built with Spring Boot, featuring JWT-based authentication, full CRUD operations for books and users, and the ability to assign books to users. Designed with modular architecture and clean REST APIs.

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🧩 Features

• 🔐 JWT Authentication

  • Secure user login and signup
  • Token-based access control for APIs

• 📚 Book Management

  • Add, update, delete, and view books
  • Assign books to registered users

• 👤 User Management

  • Register new users
  • Login to receive JWT
  • View user details and assigned books

• 🧪 Unit & Integration Testing

  • Written using JUnit & Mockito

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🛠️ Tech Stack

• Spring Boot 3.x
• Spring Security + JWT
• Spring Data JPA + Hibernate
• PostgreSQL (or H2 for testing)
• Lombok
• JUnit + Mockito
• ModelMapper or MapStruct

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🔐 Authentication Flow

1. User signs up (/api/auth/signup)
2. User logs in (/api/auth/login) → receives JWT
3. JWT is passed in Authorization: Bearer <token> for secure endpoints

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📦 Available Endpoints

Auth:

• POST /api/auth/signup – Register new user
• POST /api/auth/login – Login and receive JWT

Books:

• GET /api/books – List all books
• POST /api/books – Add new book
• PUT /api/books/{id} – Update book
• DELETE /api/books/{id} – Delete book
• POST /api/books/assign?userId=1&bookId=2 – Assign a book to a user

Users:

• GET /api/users/{id} – Get user details and assigned books

🛡️ All routes (except signup/login) are protected and require a valid JWT token.

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📥 Setup Instructions

1. Clone the repo

git clone https://github.com/your-username/book-management-store.git
cd book-management-store