Apply getResource operation to each element of an array

My goal: make a gallery of images which are stored in AWS S3. Only S3 paths are given.
Issue: given an array of s3 paths (within the bucket), it 's not possible to use them directly in an image gallery, and there's no apparent way to make an array of presigned URLs or download each element of that array. Only single-object s3 operations exist. Not possible to call resource query for each element of an array form transformer, too.