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Single Sign-On using Devise and Omniauth ==

We wanted to solve these problems:

  • A single User Manager application (which will authenticate ALL users with different roles)

  • Different internal applications which talk to User Manager for authentication

  • User should be able to login/sign-up via Social Networks like Twitter and Facebook.

  • Single Sign On between all applications.

The Custom Provider

This custom provider acts as an omniauth client (to connect to Twitter & Facebook) AND also acts as a omniauth provider (via auth_controller) to authenticate internal applications.


Clone this repository and do a bundle install. NOTE: We are using devise master HEAD because it has the latest omniauth integration code.

git clone git://
bundle install
rake db:create
rake db:migrate

Create your Twitter App and Facebook App. Create the initializer file with the following omniauth configuration:( eg. I use config/initializers/omniauth.rb )

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :twitter, 'twitter-appid', 'twitter-app-secret'
  provider :facebook, 'facebook-appid', 'facebook-app-secret'

That's it! Your on your way:

rails server

In your browser, go for it:



Please feel free to enhance this demo. For any doubts, please send an email to

I am eager to write some rspec for this setup. If you do, please send me a pull request!


This is released under the MIT license.

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