问题
There is a lot of information about using OmniAuth and Devise to be able to login to a webapp using facebook and twitter. However, I am trying to write my own OAuth provider and not use fb/twitter etc. (and failing to find examples).
I basically want to have two apps - a UserManager which has a table of users, and WebApp1 (and possible more in the future). I want a user to be able to go to WebApp1 and be redirected to the UserMAnager to be able to login, and then be redirected back to WebApp1. I don't want WebApp1 to have a table of users.
Can I have some pointers? At this stage I believe I need Devise in both apps, and OmniAuth in WebApp1, although I'm not 100% certain.
回答1:
Not sure if you still have this as a question.
There is a nice writeup that sounds very similar to your use case.
http://blog.joshsoftware.com/2010/12/16/multiple-applications-with-devise-omniauth-and-single-sign-on/
Best of luck
来源：https://stackoverflow.com/questions/7937634/single-sign-on-with-devise-and-omniauth