I have developed an application using Cloud ML Engine that recognizes images from uploaded images. I want to test the application and allow specific people to upload images for the next 24 hours. Not all users have a Google Account. How should you have users upload images?
Have users upload the images to Cloud Storage. Protect the bucket with a password that expires after 24 hours
OR
Have users upload the images to Cloud Storage using a signed URL that expires after 24 hours.