📚 Library Management System

A simple Library Management System built with Spring Boot 3, Spring Security 6, and JWT authentication.
It allows admins and librarians to manage books, members, and system users securely.

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✨ Features

• 🔐 JWT auth with role-based access: ADMIN, LIBRARIAN, STAFF
• 👥 Manage members, 📖 books, 🗂 categories
• 📊 Track copy status: AVAILABLE, LOANED, LOST, DAMAGED
• 📝 Auditing fields: createdAt, updatedAt, createdBy
• 🌐 Swagger UI for easy API testing

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🧱 Tech Stack

• Java 17+, Spring Boot 3.5.x
• Spring Security 6, Spring Data JPA
• MySQL 8+
• JWT (jjwt), Lombok
• Swagger / springdoc-openapi
• Build tool: Maven

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⚡ Quick Start

1) Prerequisites

• JDK 17+
• Maven 3.9+
• MySQL 8+ (or Docker)

2) Configure environment

Create src/main/resources/application.yml (or use application.properties) with your DB creds:

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/library_db?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC
    username: root
    password: root
    driver-class-name: com.mysql.cj.jdbc.Driver

  jpa:
    hibernate:
      ddl-auto: update   # for dev only
    show-sql: true
    properties:
      hibernate:
        format_sql: true
        dialect: org.hibernate.dialect.MySQL8Dialect

server:
  port: 8080