RentCarProject
Enterprise-Level Car Rental System Backend
Overview
RentCarProject is a car rental system backend built on an N-Tier architecture with clean separation across Entities, DataAccess, Business, and WebAPI layers. It manages the complete rental workflow, from vehicle inventory and customer records to booking operations and secure user access. Cross-cutting concerns such as validation, caching, and security are handled elegantly through Aspect-Oriented Programming rather than being scattered through business code.
What It Does
The platform exposes a secure RESTful API covering the full car rental domain: vehicle inventory management, customer registration, rental and booking operations, and vehicle image handling. Every request is authenticated with JWT and authorized by role, then validated and cached transparently via AOP aspects before reaching the business layer. A generic Result pattern gives all endpoints a consistent, predictable response envelope.
Tech Stack
Key Features
JWT-based authentication with role-based authorization (admin and user roles)
Comprehensive RESTful API covering the full car rental workflow
Vehicle inventory management with image handling
Customer registration and management
Rental and booking operations
Secure password hashing with salted HMAC-based verification
Server-side input validation with FluentValidation
AOP-driven caching for performance optimization
Generic Result pattern for consistent, uniform API responses
Technical Highlights
Key Achievements
Implemented a complete N-Tier architecture with disciplined separation of concerns
Built a reusable AOP system that centralizes validation, caching, and security
Delivered secure JWT authentication with role- and endpoint-based authorization
Developed a generic repository pattern for clean, efficient data access
Standardized API responses through a generic Result pattern with consistent error handling
Established a maintainable, testable backend foundation ready for future extension
Impact & Results
RentCarProject demonstrates enterprise-level backend development capabilities with modern .NET technologies. The implementation of N-Tier architecture ensures maintainability and scalability, while the Aspect Oriented Programming approach elegantly handles cross-cutting concerns like validation, caching, and security. The project showcases proficiency in building secure, production-ready RESTful APIs with comprehensive authentication, authorization, and data validation. The clean architecture and design patterns employed make the system easily testable and maintainable for future enhancements.