1
Generate URLs server-side
Create each URL on your server with a short expiry matched to the task (minutes, not days, for sensitive objects).
S3 Pre-Signed URLs for Secure Temporary Access
Pre-signed URLs grant temporary, scoped access to a single object operation. They are the recommended way to share downloads or accept uploads from browsers and mobile apps.
📋 Prerequisites
- Provisioned S3 credentials available server-side
- An S3-compatible SDK (for example Boto3)
Step-by-Step Instructions
2
Hand the URL to the client
Clients use the URL over HTTPS like a normal link. No Access Key or Secret Key is exposed.
3
Validate before production
Confirm pre-signed URL behavior against your provisioned endpoint during testing, since S3-compatible platforms may differ in edge cases.
📌 Important Notes
- Short expiries limit the impact of leaked links. Revoking the underlying credentials invalidates outstanding URLs.