Library Management API

A simple Spring Boot backend application that lets users manage books using CRUD operations.

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🚀 Description

This is a backend project built using Spring Boot.
It allows users to manage books by performing Create, Read, Update, and Delete (CRUD) operations via REST APIs.

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🧠 Features

• Add a new book
• Get all books
• Get book by ID
• Update book details
• Delete a book

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🛠 Tech Stack

• Java
• Spring Boot
• Spring Data JPA
• H2 Database (in‑memory)
• Postman (for testing the APIs)

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🔄 API Endpoints

Action	Method	Endpoint
Add Book	POST	/books
Get All Books	GET	/books
Get Book by ID	GET	/books/{id}
Update Book	PUT	/books/{id}
Delete Book	DELETE	/books/{id}

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⚙️ How to Run

1. Clone the project

   git clone https://github.com/AminaHasanaath/library-management-api.git

2. Open the project in IntelliJ IDEA
3. Run the main Spring Boot class (@SpringBootApplication)
4. Use Postman or any API client to test the endpoints

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💡 What I Learned

• Backend flow: Controller → Service → Repository → Database
• Building RESTful APIs using Spring Boot and Spring Data JPA
• Common annotations like @RestController, @Entity, @Repository
• How JSON ↔ Java object mapping works via Jackson

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📌 Author

Amina Hasanaath
🌱 Aspiring AI Backend Engineer building scalable systems with Java and Spring Boot