# Data Server

A Node.js server to handle file I/O operations for the ASSCO admin panel.

## Setup

1. Install dependencies:
```bash
cd data-server
npm install
```

2. Copy environment variables:
```bash
cp .env.example .env
```

3. Update the `.env` file with your settings:
- `ADMIN_PASSWORD`: Same password used in your main app
- `PORT`: Port to run the server on (default: 3001)
- `ALLOWED_ORIGINS`: Comma-separated list of allowed origins for CORS

## Running

### Development
```bash
npm run dev
```

### Production
```bash
npm start
```

## API Endpoints

All endpoints except `/health` and GET requests require authentication via `Authorization: Bearer <admin_password>` header.

### Health Check
- `GET /health` - Server health status

### Discount Codes
- `GET /api/discount-codes` - Get all discount codes
- `POST /api/discount-codes` - Add new discount code
- `DELETE /api/discount-codes/:code` - Delete discount code

### Products
- `GET /api/products` - Get all products
- `PUT /api/products/:productId` - Update product price

### Cache Management
- `GET /api/cache-status` - View cache status
- `POST /api/clear-cache` - Clear all cache (requires auth)

## Caching

The server implements in-memory caching:
- GET requests serve from cache if available
- Non-GET requests clear the cache to ensure fresh data
- Cache includes timestamps for debugging

## File Structure

```
data-server/
├── data/
│   ├── discountCodes.json
│   └── products.js
├── server.js
├── package.json
├── .env.example
└── README.md
```