Glossary term
What is presigned URL? Meaning for developers
In DevOps
A time-limited link, signed with your credentials, that lets a browser upload or download one specific S3 object directly.
Learn it properly · DevOpsLesson 11: S3 and CloudFront: Static Assets and CDNUploads, images and built assets in S3, served from edge locations near your users.In Practical Design Problems
A web address with a time limit, signed with your credentials. Whoever holds it can upload or download one file directly to storage.
Learn it properly · Practical Design ProblemsLesson 4: Design File Upload (Including Large Files)Multipart uploads vs presigned URLs, chunked and resumable uploads, a progress bar, checking files, and why the API server should not pass gigabytes through itself.