file-storage

File upload and storage for NestJS and Prisma backends - S3-compatible object storage behind an interface with local disk for dev, presigned URL uploads versus API-proxied uploads, size and type limits with content sniffing, virus scanning hooks, safe key naming, file metadata in Prisma, private-by-default access with short-lived signed download URLs, thumbnails via jobs, streaming, multipart and resumable uploads, lifecycle and orphan cleanup, backups, CDN caching, and testing with a fake store. Load when accepting uploads, serving user files, adding image processing, or designing object storage and file metadata.