Design a File Upload Service

Design a file upload service for avatars, PDFs, and documents. A user uploads a file, the system validates it, stores it, and returns a URL for subsequent access.

3,000 RPS

500,000 DAU

<500ms for obtaining upload URL

SLA 99.9%

Components

Edge type

Hint

Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.

Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.

ArchCase

System Design