🛒 Ecommerce API (.NET 9)

A robust, scalable, and production-ready Backend REST API built with .NET 9, following Clean Architecture principles.

This project manages users, products, shopping carts, and orders, with a strong focus on data integrity, maintainability, and real-world backend practices.

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🚀 Key Features

👤 User Management

• Full CRUD operations (Create, Read, Update, Delete)
• Secure registration and profile updates
• DTO-based architecture for safe and controlled data transfer

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📦 Product & Category Catalog

• Dynamic product and category management
• Products are linked to categories for better organization
• Easily extendable filtering and searching capabilities

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🛒 Shopping Cart System

• Persistent cart stored in the database
• Real-time updates (add/remove/update quantity)
• Seamless user-cart relationship

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💳 Order Management

• One-click checkout process
• Automatic stock deduction after order placement
• Full order history tracking per user
• Ensures transactional consistency

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🛠 Tech Stack & Highlights

• Framework: ASP.NET Core Web API (.NET 9)
• Database: SQL Server
• ORM: Entity Framework Core
• Mapping: AutoMapper (with null safety handling)
• Validation: FluentValidation
• Logging: Serilog (Console & File logging)

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🧠 Architecture & Design

This project follows Clean Architecture, ensuring separation of concerns and scalability.

🏗 Layers

• 📂 Domain
  Core business logic and entities (User, Product, Cart, Order)

• 📂 Application
  DTOs, Interfaces, Validators, and Mapping Profiles

• 📂 Infrastructure
  Database access (DbContext), Repository & Service implementations

• 📂 API
  Controllers, Middleware, and global exception handling

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