// Build an S3 Request. var GetObjectRequest := TS3GetObjectRequest.Create('my-bucket', 'my-object') as IS3GetObjectRequest; // Build the Presigner and Request var Presigner := TS3Presigner.Create as IS3Presigner; var PresignerRequest := TS3PresignerRequest.Create(GetObjectRequest) as IS3PresignerRequest; Specify any options such as ExpiresIn. PresignerRequest.ExpiresIn := 604800; // 1 Week // Presign the URL var PresignedUrl := Presigner.PresignedUrl(PresignerRequest);