This isn't viable for large files. First uploading to your server, then through to S3. It will take a long time. Have your api return the upload url and then wh

This isn't viable for large files. First uploading to your server, then through to S3. It will take a long time. Have your api return the upload url and then when you switch providers, instead use their signed url? AWS and Google you just PUT to the url, shouldn't change anything. Then hit your own api after it finishes