Design File Storage System
Design the file storage system with:
- Company level access control
- Upload/Update file
- Download file
- Search file by name or categories
This is a scoped storage-system design: define core entities (Company/User/File/Category), permissions at company scope, and APIs for upload/update/download/search. Interviewers expect discussion on metadata indexing for search, storage layout (object store), versioning for updates, and access checks on every operation. Optional: audit logs, quotas, and multi-tenant isolation.
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