Don't know if this is what you are looking for but I've successfully been using https://code.google.com/p/gae-simpleauth/ for OAuth2 authentication in combination with Users API. With some minor changes my users can link their manually registered accounts to Facebook and authenticate with either as well as use only Facebook. Also, not sure how to answer most of your answers but scopes are service dependent, i.e. they'd be different for Facebook/Google and working with Users API shouldn't be any different after OAuth2 and there shouldn't be any conflicts.
On Thursday, July 17, 2014 9:58:57 PM UTC-5, John Del Rosario wrote: > > (x-post from SO and reddit, for maximum visibility) > > We're trying to put our app on Google Marketplace, and one of the > requirements was to use OAuth2 for authentication. Unfortunately (and > strangely), AppEngine doesn't have an option for this. > > Right now, we are using OpenID for authentication. I've been trying to > find resources online, but have failed in finding a definitive guide on how > to do this properly. > > My concerns are: > > 1. What scope should I use? > 2. How should sessions be managed? (the [Users]( > https://developers.google.com/appengine/docs/python/users/) service > handled this very well) > 3. What would the local development process be like? Would I need to have > an internet connection to be able to use `dev_appserver.py`? > 4. We rely heavily on the [`user_id`]( > https://developers.google.com/appengine/docs/python/users/userclass#User_user_id) > > property provided by the Users service. Can I rely on it having the same > value when switching to OAuth2? > 5. Any possible conflicts in other AppEngine services (ones that rely on > Users service)? > 6. Would the `login: required` flag in `app.yaml` still work as expected > after migrating? > 7. Are there plans on supporting proper OAuth2 authentication as a default > option in AppEngine projects? > > Also, the AppEngine docs seem to be out of date with regards to > integrating with Marketplace. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/d/optout.
