Pi Network Compliance Documentation

# Pi Network Compliance Documentation

## Overview
This repository demonstrates Pi Network integration following best practices and compliance requirements.

## Compliance Checklist

### ✅ Authentication
- [x] Pi OAuth 2.0 implementation
- [x] Secure token storage
- [x] Session management
- [x] User consent logging

### ✅ Payments
- [x] Payment flow demonstration
- [x] Transaction verification
- [x] Error handling
- [x] Receipt generation

### ✅ Security
- [x] HTTPS enforcement
- [x] CORS configuration
- [x] Rate limiting
- [x] Input validation
- [x] XSS protection

### ✅ Testing
- [x] Unit tests (85% coverage)
- [x] Integration tests
- [x] Security audit
- [x] Performance testing

## Implementation Details

### Pi SDK Integration
```javascript
// Example: Secure Pi SDK initialization
import { PiNetwork } from '@pinodejs/sdk';

const pi = new PiNetwork({
  apiKey: process.env.PI_API_KEY,
  appId: process.env.PI_APP_ID,
  sandbox: process.env.NODE_ENV !== 'production'
});
```

### Payment Flow
1. User initiates payment
2. Create payment on Pi Network
3. User approves in Pi Browser
4. Server verifies and completes
5. Transaction recorded

## Security Best Practices

### Environment Variables
```bash
# Never commit these to repository
PI_API_KEY=your_api_key_here
PI_SECRET_KEY=your_secret_key_here
JWT_SECRET=your_jwt_secret_here
```

### Rate Limiting
- 100 requests/minute per IP
- 5 authentication attempts/minute
- 10 payment requests/minute

## Testing
Run compliance tests:
```bash
npm run test:compliance
npm run test:security
npm run test:integration
```

## Deployment
- Automatic deployment to Cloudflare Pages
- Environment-specific configurations
- Monitoring and logging enabled