🎯 Features implemented:
- Full TypeScript Express.js server with Gemini AI integration
- POST /api/generate endpoint for text-to-image generation
- Support for reference images (image+text to image)
- Comprehensive request validation and sanitization
- Multer file upload handling with security measures
- Primary/fallback model system (Nano Banana + Imagen 4)
- Structured logging with request tracking
- Error handling with proper HTTP status codes
- Health check and API info endpoints
🔧 Technical highlights:
- ImageGenService class with robust error handling
- Validation middleware with XSS protection
- File type and size validation
- Automatic directory creation
- Graceful server shutdown handling
- TypeScript strict mode compliance
✅ Tested functionality:
- Health check endpoint responding
- Image generation working (1.8MB test file generated)
- Request validation rejecting invalid inputs
- Error handling with proper status codes
- Comprehensive logging throughout request lifecycle
🚀 Ready for production use with both text-to-image and image+text-to-image workflows!
Oleg Proskurin