I require oAuth validation for access to my Google Endpoint API backend. However, part of the oAuth flow requires the user to have a Google Account for authorization.
This would seem ridiculous to a user who created an account for my app and then had to authenticate it with a separate Google account. In fact, the authorization popup says something along the lines of (paraphrasing here): This application requires your Google account to access data...
How can I set up the oAuth authorization flow with my own users authenticating with their own app-specific accounts instead of a Google account?
EDIT:
Seems as though Google Cloud Endpoints doesn't allow for authorization without a google account: Google Cloud Endpoints limitations... any proposed solutions?