عرض عملي: رفع صورة منتج وتنزيلها بالبث

خطوة بخطوة

1. Add configuration for the storage directory and size limits.
2. Implement POST /products/{id}/images: check type and size, generate a UUID name, save to the storage directory, and return 201 with Location.
3. Implement GET /products/{id}/images (list) and GET /images/{imageId} (stream with the right Content-Type).
4. Planned mistake: the first version saves the file using file.getOriginalFilename(); a name with ../ writes outside the folder. Fix: generate the name and keep the original only as metadata.
5. Upload a 20 MB file and a fake .png and show both rejected.