How to Generate a Presigned S3 URL via AWS CLI

Wildcards are now supported.

E.g. aws s3 presign s3://mybucket/*

Did you try aws s3 presign?

Generate a pre-signed URL for an Amazon S3 object. This allows anyone who receives the pre-signed URL to retrieve the S3 object with an HTTP GET request. For sigv4 requests the region needs to be configured explicitly.

This will generate a URL that will expire in 3600 seconds (default)

aws s3 presign s3://mybucket/myobject

This will generate a URL that will expire in 300 seconds

aws s3 presign s3://mybucket/myobject  --expires-in 300

Output

https://mybucket.s3.amazonaws.com/myobject?AWSAccessKeyId=AKIAJXXXXXXXXXXXXXXX&Expires=1503602631&Signature=ibOGfAovnhIF13DALdAgsdtg2s%3D