It would be immensely helpful to support access_token as a query parameter for Cloud Drive API requests, as outlined in section 2.3 of the OAuth 2.0 Bearer Token Usage. See
http://tools.ietf.org/html/draft-ietf-oauth-v2-bearer-23#section-2.3. In my application I'm using a caching library which accepts only URLs as entries. I don't have an opportunity to set an Authorization header for the requests.
Thank you for your post. We currently we don’t support providing access_token through a url parameter. Customer feedback like yours helps us continue to improve our products and provide better service to our customers. I’ve passed this suggestion to our Cloud Drive API team for consideration.
I was just checking to see if any progress was made on this point. Our application passes off the content url's to be downloaded by another process. There currently isn't any way to pass access token information. All our other supported OAuth2 image source providers support passing the access token as a query parameter so it would make integration of your service much easier if yours did as well.