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When would you use a presigned URL?
When would you use a presigned URL? When a file should stay private but a browser needs short-term access, like playing one video. S3 makes a link that works for, say, 15 minutes (Example data), then expires on its own. “Presigned URLs give short, private access. I never put long-lived keys in a mob
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What this card says
Short answer
When a file should stay private but a browser needs short-term access, like playing one video.
Example
S3 makes a link that works for, say, 15 minutes (Example data), then expires on its own.
Say it in the interview
“Presigned URLs give short, private access. I never put long-lived keys in a mobile app.”
Why it matters
It lets you share one file without making the whole bucket public.
Learn more in the lesson: 46.5 Domains, S3, RDS and Live-Project Security Questions