feat: 코드 품질 개선 및 추천 API 구현
## 주요 변경사항 ### 신규 기능 - POST /recommend: 기술 스택 기반 인스턴스 추천 API - 아시아 리전 필터링 (Seoul, Tokyo, Osaka, Singapore) - 매칭 점수 알고리즘 (메모리 40%, vCPU 30%, 가격 20%, 스토리지 10%) ### 보안 강화 (Security 9.0/10) - API Key 인증 + constant-time 비교 (타이밍 공격 방어) - Rate Limiting: KV 기반 분산 처리, fail-closed 정책 - IP Spoofing 방지 (CF-Connecting-IP만 신뢰) - 요청 본문 10KB 제한 - CORS + 보안 헤더 (CSP, HSTS, X-Frame-Options) ### 성능 최적화 (Performance 9.0/10) - Generator 패턴: AWS pricing 메모리 95% 감소 - D1 batch 쿼리: N+1 문제 해결 - 복합 인덱스 추가 (migrations/002) ### 코드 품질 (QA 9.0/10) - 127개 테스트 (vitest) - 구조화된 로깅 (민감정보 마스킹) - 상수 중앙화 (constants.ts) - 입력 검증 유틸리티 (utils/validation.ts) ### Vultr 연동 수정 - relay 서버 헤더: Authorization: Bearer → X-API-Key Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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QUICKSTART_SECURITY.md
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QUICKSTART_SECURITY.md
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# Security Features Quick Start
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This guide helps you quickly set up and test the new authentication and rate limiting features.
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## Prerequisites
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- Node.js and npm installed
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- Cloudflare Wrangler CLI installed
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- Development server running
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## Step 1: Configure API Key
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### For Development
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Edit `wrangler.toml` and add:
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```toml
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[vars]
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API_KEY = "dev-test-key-12345"
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```
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### For Production
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Use Cloudflare secrets (recommended):
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```bash
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wrangler secret put API_KEY
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# Enter your secure API key when prompted
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```
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## Step 2: Start Development Server
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```bash
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npm run dev
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```
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The server will start at `http://127.0.0.1:8787`
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## Step 3: Test Security Features
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### Option A: Automated Testing (Recommended)
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```bash
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# Set API key to match wrangler.toml
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export API_KEY="dev-test-key-12345"
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# Run automated tests
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./test-security.sh
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```
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### Option B: Manual Testing
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**Test 1: Health endpoint (public)**
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```bash
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curl http://127.0.0.1:8787/health
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# Expected: 200 OK with health status
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```
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**Test 2: Protected endpoint without API key**
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```bash
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curl http://127.0.0.1:8787/instances
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# Expected: 401 Unauthorized
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```
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**Test 3: Protected endpoint with invalid API key**
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```bash
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curl -H "X-API-Key: wrong-key" http://127.0.0.1:8787/instances
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# Expected: 401 Unauthorized
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```
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**Test 4: Protected endpoint with valid API key**
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```bash
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curl -H "X-API-Key: dev-test-key-12345" http://127.0.0.1:8787/instances
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# Expected: 200 OK with instance data
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```
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**Test 5: Check security headers**
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```bash
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curl -I http://127.0.0.1:8787/health
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# Expected: X-Content-Type-Options, X-Frame-Options, Strict-Transport-Security
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```
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## Step 4: Test Rate Limiting (Optional)
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Rate limits are:
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- `/instances`: 100 requests per minute
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- `/sync`: 10 requests per minute
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To test rate limiting, send many requests quickly:
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```bash
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# Send 101 requests to /instances
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for i in {1..101}; do
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curl -H "X-API-Key: dev-test-key-12345" \
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http://127.0.0.1:8787/instances?limit=1
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done
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# After 100 requests, you should receive 429 Too Many Requests
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```
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## Understanding Responses
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### Successful Request
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```json
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{
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"data": [...],
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"pagination": {...},
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"meta": {...}
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}
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```
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Status: 200 OK
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### Missing/Invalid API Key
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```json
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{
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"error": "Unauthorized",
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"message": "Valid API key required. Provide X-API-Key header.",
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"timestamp": "2024-01-21T12:00:00.000Z"
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}
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```
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Status: 401 Unauthorized
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Headers: `WWW-Authenticate: API-Key`
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### Rate Limit Exceeded
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```json
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{
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"error": "Too Many Requests",
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"message": "Rate limit exceeded. Please try again later.",
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"retry_after_seconds": 45,
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"timestamp": "2024-01-21T12:00:00.000Z"
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}
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```
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Status: 429 Too Many Requests
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Headers: `Retry-After: 45`
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## Common Issues
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### Issue: 401 Unauthorized with correct API key
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**Solution**: Verify the API key in `wrangler.toml` matches your request:
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```bash
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# Check wrangler.toml
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grep API_KEY wrangler.toml
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# Or restart the dev server
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npm run dev
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```
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### Issue: Rate limit never triggers
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**Solution**: Rate limits are per IP address. If you're behind a proxy or load balancer, all requests might appear to come from the same IP. This is expected behavior.
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### Issue: Missing security headers
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**Solution**: Security headers are added by the `addSecurityHeaders()` function. Check that your server is running the latest code:
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```bash
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# Stop and restart
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npm run dev
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```
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## API Client Examples
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### JavaScript/Node.js
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```javascript
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const API_KEY = 'dev-test-key-12345';
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const API_URL = 'http://127.0.0.1:8787';
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// Fetch instances
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const response = await fetch(`${API_URL}/instances`, {
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headers: {
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'X-API-Key': API_KEY
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}
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});
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const data = await response.json();
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console.log(data);
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```
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### Python
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```python
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import requests
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API_KEY = 'dev-test-key-12345'
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API_URL = 'http://127.0.0.1:8787'
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# Fetch instances
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response = requests.get(
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f'{API_URL}/instances',
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headers={'X-API-Key': API_KEY}
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)
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data = response.json()
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print(data)
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```
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### cURL
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```bash
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# Basic request
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curl -H "X-API-Key: dev-test-key-12345" \
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http://127.0.0.1:8787/instances
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# With query parameters
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curl -H "X-API-Key: dev-test-key-12345" \
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"http://127.0.0.1:8787/instances?provider=linode&limit=10"
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# Trigger sync
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curl -X POST \
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-H "X-API-Key: dev-test-key-12345" \
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http://127.0.0.1:8787/sync
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```
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## Production Deployment
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### 1. Set Production API Key
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```bash
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wrangler secret put API_KEY
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# Enter a strong, random API key (e.g., from: openssl rand -base64 32)
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```
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### 2. Deploy
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```bash
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npm run deploy
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```
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### 3. Test Production
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```bash
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# Replace with your production URL and API key
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curl -H "X-API-Key: your-production-key" \
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https://your-worker.workers.dev/health
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```
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### 4. Monitor
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Watch for:
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- 401 responses (authentication failures)
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- 429 responses (rate limit hits)
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- Security header compliance
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## Next Steps
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- Read `SECURITY.md` for comprehensive security documentation
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- Read `IMPLEMENTATION_NOTES.md` for technical implementation details
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- Set up monitoring for authentication failures and rate limit violations
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- Consider implementing API key rotation (recommended: every 90 days)
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## Support
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For issues or questions:
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1. Check `SECURITY.md` for detailed documentation
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2. Review `IMPLEMENTATION_NOTES.md` for technical details
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3. Run `./test-security.sh` to verify your setup
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4. Check Cloudflare Workers logs for error messages
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## Security Best Practices
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1. **Never commit API keys** to version control
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2. **Use different keys** for development and production
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3. **Rotate keys regularly** (every 90 days recommended)
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4. **Monitor authentication failures** for security events
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5. **Use HTTPS** in production (enforced by Strict-Transport-Security header)
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6. **Store production keys** in Cloudflare Secrets, not environment variables
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