File & Image Upload System
Status: ✅ Complete (Core Features)
Last Updated: 2026-01-14
Overview
Complete file and image upload system with storage adapter pattern, image processing, and comprehensive security.
Implementation Details
Core Infrastructure
- ✅ Database schema (File model with userId, fileName, fileType, mimeType, size, storageKey, storageAdapter, isImage, metadata; ImageVariant model for resized versions)
- ✅ Storage adapter interface (IFileStorageAdapter) following email service pattern
- ✅ DiskStorageAdapter implementation (stores files in server/uploads/{userId}/{fileId}/)
- ✅ FileService (upload, download, delete, list, user ownership verification)
- ✅ ImageProcessingService (resize images to thumbnail, small, medium, large, original - max 4 sizes + original)
- ✅ FileUploadService (orchestrator coordinating FileService + ImageProcessingService)
API & Security
- ✅ API routes (POST /api/files/upload, GET /api/files/:id, GET /api/files/:id/download, GET /api/files/:id/url, DELETE /api/files/:id, GET /api/files)
- ✅ Security (user isolation, file type validation, size limits, path sanitization)
- ✅ Backend tests (comprehensive coverage - 40+ tests passing, core functionality fully tested)
Frontend Components
- ✅ Frontend FileUpload component (drag-and-drop, preview, progress)
- ✅ Frontend ImageDisplay component (displays appropriate variant based on context)
Integrations
- ✅ Update Person.pictureUrl to use File.id instead of URL string (schema, backend service, frontend updated)
- ✅ Update Book.coverUrl to use File.id (schema, backend service, frontend updated)
- ✅ Update Recipe.imageUrl to use File.id (schema, backend service, frontend updated)
API Endpoints
/api/files/upload- Upload file/api/files/:id- Get file metadata/api/files/:id/download- Download file/api/files/:id/url- Get file URL (for images, returns appropriate variant URL)/api/files/:id- Delete file/api/files- List user's files