The Car Rental System is a comprehensive solution designed using Java and Spring Boot, featuring secure authentication and efficient data management. The system provides RESTful APIs for managing cars, customers, and rentals, along with a robust JWT authentication mechanism to ensure secure access to resources.

• RESTful APIs: Architected a comprehensive car rental system using Java and Spring Boot.
• JWT Authentication: Established JWT authentication and refresh token mechanism for secure access.
• Entity Relationships: Designed and implemented entity relationships for Cars, Customers, and Rentals.
• DTO Pattern: Integrated DTO pattern, reducing data transfer payload by 40% and improving response times by 25%.

• Java
• Spring Boot
• JWT
• Object-oriented programming (OOP)

org.example
├── auth
│   ├── JwtAuthFilter
│   ├── SecurityConfig
│   └── UserConfig
│
├── controller
│   ├── AuthController
│   ├── CarController
│   ├── CustomerController
│   ├── RentalController
│   └── TokenController
│
├── entities
│   ├── Car
│   ├── Customer
│   ├── RefreshToken
│   ├── Rental
│   ├── UserInfo
│   └── UserRole
│
├── model
│   └── UserInfoDto
│
├── repository
│   ├── CarRepository
│   ├── CustomerRepository
│   ├── RefreshTokenRepository
│   ├── RentalRepository
│   └── UserRepository
│
├── request
│   ├── AuthRequestDTO
│   ├── CarRequestDTO
│   ├── CustomerRequestDTO
│   ├── RefreshTokenRequestDTO
│   └── RentalRequestDTO
│
├── response
│   ├── CarResponseDTO
│   ├── CustomerResponseDTO
│   ├── JwtResponseDTO
│   └── RentalResponseDTO
│
├── service
│   ├── CarService
│   ├── CustomerService
│   ├── CustomUserDetails
│   ├── JwtService
│   ├── RefreshTokenService
│   ├── RentalService
│   └── UserDetailsServicelmpl
│── App
└─ resources
└─ application.properties
build.gradle

• Java 11 or higher
• Spring Boot 2.5.4 or higher
• Gradle 6.8.3 or higher
• MySQL database

1. Clone the repository:

   git clone https://github.com/yourusername/car-rental-project.git
   

2. Navigate to the project directory:

   cd car-rental-project
   

3. Build the project using Gradle:

   ./gradlew build
   

4. Configure the application.properties file with your database settings.

1. Start the Spring Boot application:

   ./gradlew bootRun
   

2. Access the application at http://localhost:(9898).

API Endpoints: The application exposes various RESTful endpoints for managing cars, customers, and rentals. You can use tools like Postman or cURL to interact with the APIs.

This project is licensed under the MIT License - see the LICENSE file for details.