Product & Sales Management System

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Full-stack application for managing products, clients, and sales with secure JWT authentication.

🚀 Technologies

Backend

• .NET 9.0 (Latest)
• C#
• SQL Server
• Entity Framework Core (Code-First)
• JWT Authentication (JSON Web Tokens)
• BCrypt for secure password hashing

Frontend

• Vue.js 3 (Composition API)
• Axios (HTTP Client)
• Vue Router
• Bootstrap / Tailwind (Visual Framework)

✨ Features

• 🔐 Secure Authentication: JWT-based login and registration.
• 📦 Product Management: Complete CRUD with stock control.
• 👥 Client Management: Database of clients.
• 💰 Sales Processing: Transactional sales recording.
• 📱 Responsive Design: Optimized for mobile and desktop.
• 🔌 RESTful API: Clean and standard API architecture.

🏛️ Architecture & Patterns

This project follows industry best practices for scalability and maintainability:

• Layered Architecture: Strict separation of concerns (Controllers → Services → Data Layer).
• Service Layer Pattern: Encapsulates business logic and keeps Controllers clean.
• SOLID Principles: Extensive use of Dependency Injection and Interface Segregation.
• Unit Testing: Integrated testing suite for backend logic.

⚙️ Setup Instructions

Backend (API)

1. Update the connection string in appsettings.json:

"ConnectionStrings": {
  "DefaultConnection": "Server=localhost;Database=ProductSalesDB;Trusted_Connection=True;TrustServerCertificate=True"
}

2. Run migrations:

dotnet ef database update

3. Start the API:

dotnet run

Frontend (Client)

1. Navigate to frontend folder:

cd product-sales-frontend

2. Install dependencies:

npm install

3. Start development server:

npm run dev

📡 API Endpoints

Authentication

• POST /api/auth/register - Register new user
• POST /api/auth/login - Login and get JWT token

Products (Protected 🔒)

• GET /api/products - Get all products
• POST /api/products - Create product
• GET /api/products/{id} - Get by ID
• PUT /api/products/{id} - Update
• DELETE /api/products/{id} - Delete

Sales (Protected 🔒)

• GET /api/sales - Get all sales
• POST /api/sales - Create sale

👤 Author

Harold Toribio