NestJS · Senior · Question 44 of 75

How do you safely handle file uploads at scale in Nest?

✓Correct answer: Limit size and type, avoid buffering big files in memory, stream to object storage or use presigned URLs so clients upload directly
2Accept any file type and size
3Store every upload in memory as a Buffer

Explanation

Presigned uploads move heavy traffic away from the API; the API only records metadata and verifies the result.

Further reading

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