# SkyArtShop Backend

Production-ready Node.js + Express + TypeScript backend for Sky Art Shop.

## 🚀 Quick Start

```bash
# Install dependencies
npm install

# Set up database
npx prisma generate
npx prisma migrate dev

# Run development server
npm run dev

# Build for production
npm run build

# Run production server
npm start
```

## 📁 Project Structure

```
backend/
├── prisma/
│   └── schema.prisma    # Database schema
├── src/
│   ├── @types/          # TypeScript definitions
│   ├── config/          # Configuration files
│   ├── controllers/     # Request handlers
│   ├── services/        # Business logic
│   ├── models/          # Data access layer
│   ├── routes/          # API route definitions
│   ├── middlewares/     # Express middleware
│   ├── validators/      # Request validation
│   ├── helpers/         # Utility functions
│   └── server.ts        # Entry point
├── .env
├── tsconfig.json
└── package.json
```

## 🛠️ Tech Stack

- **Node.js** - Runtime
- **Express** - Web framework
- **TypeScript** - Type safety
- **Prisma** - ORM
- **PostgreSQL** - Database
- **JWT** - Authentication
- **Zod** - Validation

## 🔑 Environment Variables

Create a `.env` file:

```
PORT=3000
NODE_ENV=development
DATABASE_URL="postgresql://user:password@localhost:5432/skyartshop"
JWT_SECRET=your-secret-key
CORS_ORIGIN=http://localhost:5173
```

## 📝 Development Guidelines

### Folder Responsibilities

- **controllers/**: Handle HTTP requests and responses
- **services/**: Business logic and orchestration
- **models/**: Database queries (Prisma models)
- **routes/**: Define endpoints and apply middleware
- **middlewares/**: Authentication, validation, logging
- **validators/**: Zod schemas for request validation
- **helpers/**: Pure utility functions

### Adding a New Feature

1. Create model in `prisma/schema.prisma`
2. Run `npx prisma migrate dev`
3. Create service in `src/services/`
4. Create controller in `src/controllers/`
5. Add routes in `src/routes/`
6. Add validators in `src/validators/`

## 🔒 Security

- JWT authentication on protected routes
- Input validation with Zod
- Helmet for security headers
- CORS configured
- Rate limiting ready

## 📊 Database

```bash
# Generate Prisma Client
npx prisma generate

# Create migration
npx prisma migrate dev --name description

# Open Prisma Studio
npx prisma studio
```