How to integrate Ruby on Rails application with Microsoft AD FS Single Sign On

Microsoft AD FS (Active Directory Federation Services) is quite a popular solution used by many big institutions for authentication and authorization. It may happen that your application will have to be integrated with AD FS service hosted by an external company.

Unfortunately, it is not always an easy task, for multiple reasons, including:

• External company does not provide test environment, or access is restricted
• Limited or no support from external company to help with the integration

In such situation, setting your own AD FS instance may be needed. Own instance will help to execute initial integration, but it is also useful later - ex. for troubleshooting and testing.

If you need to configure AD FS instance on Azure and pair it with your Ruby on Rails application using Devise and OmniAuth gems, you can find a detailed guide here: