You are developing an application that will allow clients to download a file from your...

Configure the application to send the file to the client as an email attachment.

Generate and assign a Cloud Storage-signed URL for the file. Make the URL available for the client to download.

Create a temporary Cloud Storage bucket with time expiration specified, and give download permissions to the bucket. Copy the file, and send it to the client.

Generate the HTTP cookies with time expiration specified. If the time is valid, copy the file from the Cloud Storage bucket, and make the file available for the client to download.