Transfer files from dropbox/drive to Google cloud storage

Question

We are planning to implement a feature to let customers browse their images in their own google drive or dropbox accounts (within our app), and select ones they wanna use in our

Answer 1

Well you could stream the files so at least you wouldn't have to save them to local disk, but other than that I think your solution is the way to go.

It depends on your language how streaming works exactly, but basically you download the file and upload it to GCS right away without ever writing any bytes to local disk.