feat(phase-2): implement enhanced redirect tracking with database persistence
🚀 Core Features:
- Complete database-persisted redirect tracking system
- Enhanced hop analysis with timing, headers, and metadata
- Intelligent redirect type detection (301, 302, 307, 308, meta, JS, final)
- Automatic redirect loop detection and prevention
- Comprehensive status tracking (OK, ERROR, TIMEOUT, LOOP)
- Real-time latency measurement per hop
🔧 Technical Implementation:
- Production-grade RedirectTrackerService with Prisma integration
- Type-safe request/response handling with Zod validation
- Advanced rate limiting (200/hour authenticated, 50/hour anonymous)
- Flexible authentication (optional auth for broader access)
- Robust error handling and structured logging
- Comprehensive input validation and sanitization
🌐 API Endpoints:
- POST /api/v2/track - Enhanced tracking with database persistence
- GET /api/v2/track/:checkId - Retrieve specific check with full hop details
- GET /api/v2/projects/:projectId/checks - List project checks with pagination
- GET /api/v2/checks/recent - Recent checks for authenticated users
- POST /api/v2/track/bulk - Placeholder for Phase 6 bulk processing
📊 Enhanced Data Model:
- Persistent check records with complete metadata
- Detailed hop tracking with response headers and timing
- SSL scheme detection and protocol analysis
- Content-Type extraction and analysis
- Comprehensive redirect chain preservation
🔒 Security & Performance:
- User-based rate limiting for authenticated requests
- IP-based rate limiting for anonymous requests
- Configurable timeouts and hop limits (1-20 hops, 1-30s timeout)
- Request validation prevents malicious input
- Structured error responses for API consistency
🔄 Backward Compatibility:
- All existing endpoints preserved and functional
- Legacy response formats maintained exactly
- Zero breaking changes to existing integrations
- Enhanced features available only in v2 endpoints
📋 Database Schema:
- Checks table for persistent tracking records
- Hops table for detailed redirect chain analysis
- Foreign key relationships for data integrity
- Optimized indexes for performance queries
🧪 Quality Assurance:
- Comprehensive test suite for all endpoints
- Authentication flow testing
- Rate limiting verification
- Error handling validation
- Legacy compatibility verification
Ready for Phase 3: SSL/SEO/Security analysis integration
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