What is a pre-signed URL?

A pre-signed URL is special S3 compliant URL in order to share an object for a specific duration for everyone who has the URL. Thus the URL contains some more query parameters holding that specific information. 

How do I create a pre-signed URL?

The easiest way is to use a tool as creating such pre-signed URLs requires coding skills. E.g. using Cyberduck makes that task very easy.

• Navigate to a file of your choice
• Select Edit > Copy URL and choose one of the pre-signed URLs which are matching your duration
• You can alternatively right-click  and select either Copy URL or Open URL

You can see an example of a support pre-signed URL here:

https://<region>.contabostorage.com/<bucketname>/path/to/file?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=<credential>&X-Amz-Date=<datetime>&X-Amz-Expires=<duration>X-Amz-SignedHeaders=host&X-Amz-Signature=<signature>