Library Management System

A Spring Boot REST API project for managing a library system. It provides full CRUD functionality for books, global exception handling, validation, and interactive API documentation using Swagger.

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Features

• Add, update, delete, and retrieve books
• Fetch book by ID
• Global exception handling (@ControllerAdvice)
• Input validation with meaningful error messages
• RESTful API design
• Swagger API documentation
• Layered architecture (Controller, Service, Repository)

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Tech Stack

• Java 17+
• Spring Boot
• Spring Web
• Spring Data JPA
• Hibernate
• Maven
• H2 / MySQL (based on configuration)
• Swagger / OpenAPI

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Project Structure

Library-Management-System/
│
├── src/
│   ├── main/
│   │   ├── java/
│   │   │   └── com/library/demo/
│   │   │       ├── controller/
│   │   │       ├── service/
│   │   │       ├── repository/
│   │   │       ├── model/
│   │   │       ├── exception/
│   │   │       └── config/
│   │   └── resources/
│   │       ├── application.properties
│
├── pom.xml
├── mvnw
├── mvnw.cmd
└── README.md

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Getting Started

1️ Clone the Repository

git clone https://github.com/your-username/Library-Management-System.git
cd Library-Management-System

2️ Build the Project

mvn clean install

3️ Run the Application

mvn spring-boot:run

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API Endpoints

Book APIs:

Method	Endpoint	Description
GET	/api/books	Get all books
GET	/api/books/{id}	Get book by ID
POST	/api/books	Add a new book
PUT	/api/books/{id}	Update book
DELETE	/api/books/{id}	Delete book

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Swagger Documentation

Once the application is running, access API docs:

http://localhost:8080/swagger-ui/index.html

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Exception Handling

This project includes robust error handling for:

• Resource Not Found,
• Validation Errors,
• Generic Server Errors

All errors return structured and meaningful JSON responses.

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Author:

Arpan Adhikari

• Washburn University
• Computer Information Science & Business Data Analytics