Authentication systems

Google

To get Google Auth working:

** go to https://console.developers.google.com

** create an application

** set up oauth2 credentials as a web application, with your origin, e.g. https://myhelios.example.com, and your auth callback, which, based on our example, is https://myhelios.example.com/auth/after/

** still in the developer console, enable the Google+ API.

** set the GOOGLE_CLIENT_ID and GOOGLE_CLIENT_SECRET configuration variables accordingly.