🛍️ Trendora - Modern E-Commerce Web Application

Trendora is a fully-featured modern e-commerce web application built using ASP.NET Core (.NET 8) and Entity Framework Core. It follows clean architecture principles, promoting scalability, maintainability, and modular design.

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📑 Table of Contents

• 🎯 Purpose
• 🏗️ High-Level Architecture
• 🛠️ Core Technology Stack
• 🔐 Authentication & Authorization
• 📦 Main Features
• 🧩 Data Model Overview
• ⚙️ Application Configuration
• 📁 Project Structure

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🎯 Purpose

Trendora aims to deliver a complete and scalable e-commerce platform with essential features such as:

• User authentication and role-based authorization
• Product catalog management
• Shopping cart system
• Order lifecycle management
• Wishlist and product reviews

It is built with a layered architecture and utilizes well-known design patterns to ensure clean code and extensibility.

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🏗️ High-Level Architecture

Trendora is structured into several layers:

• Client Applications – (e.g., Web front-end or Postman)
• API Layer – Handles HTTP requests and routes them to appropriate services
• Business Logic Layer – Contains application logic and use cases
• Data Access Layer – Implements repositories and Unit of Work
• Database Layer – SQL Server with EF Core and Identity integration

📊 Architecture Diagram
Client App ↓ API Controllers ↓ Services / Managers (Business Logic) ↓ Repositories / Unit of Work (Data Access) ↓ EF Core / DbContext ↓ SQL Server

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🛠️ Core Technology Stack

Component	Technology
Framework	ASP.NET Core (.NET 8.0)
Database	SQL Server
ORM	Entity Framework Core
Authentication	JWT
Identity Management	ASP.NET Core Identity
API Docs	Swagger / OpenAPI
Object Mapping	DTOs
Data Patterns	Repository + Unit of Work

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🔐 Authentication & Authorization

Trendora uses JWT-based authentication with ASP.NET Core Identity. It supports role-based access for:

• Admin
• User
• Trader

🔁 Authentication Flow:

1. User registers or logs in with credentials.
2. Credentials are validated using Identity.
3. JWT token is generated and returned.
4. Token is used for authenticated API access.

🔐 DTOs:

• RegisterDTO.cs
• LoginDTO.cs

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📦 Main Features

• 🛍️ Product Catalog – Browse, search, and manage products and categories.
• 🛒 Shopping Cart – Add/update/remove items and manage session cart.
• 📦 Order Management – Checkout flow, order items, and order history.
• 💖 Wishlist System – Save products for later.
• 🌟 Product Reviews – Users can review and rate products.

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🧩 Data Model Overview

Key entities include:

• ApplicationUser
• Product, Category
• Cart, CartItem
• Order, OrderItem
• Wishlist, WishlistItem
• Address, ProductReview

📘 Defined in:

• Models/
• Data/TrendOraDbContext.cs

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⚙️ Application Configuration

Trendora's configuration is managed through standard ASP.NET Core mechanisms:

Connection Strings: Database connection is configured in appsettings.json JWT Settings: JWT token issuer, audience, and security key are defined in configuration Dependency Injection: Services are registered in the Program.cs startup code Middleware Pipeline: HTTP request processing pipeline is configured with standard middleware

📁 Project Structure

Trendora/
│
├── Controllers/          # API Controllers
├── DTOs/                 # Data Transfer Objects
├── Models/               # Entity Models
├── Data/                 # DbContext & EF Configuration
├── GenericRepositories/  # IRepository, UnitOfWork, GenericRepo
├── Services/             # Business Logic
├── Program.cs            # App Startup
├── appsettings.json      # Configuration
└── Trendora.csproj       # Project File

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