If you want users to log in to your Joomla site using their Google Apps credentials, you can simply do it using our Joomla Google Apps OAuth plugin. Once you configure the Google Apps with the Joomla OAuth plugin, you can allow Google Apps users to SSO into your Joomla site using Google Apps. Similarly, you can map your Joomla roles based on your Google Apps attributes/groups. To know more about other features we provide in Joomla OAuth plugin, you can download it by click here.
Congratulations, you have successfully completed your Google App OAuth Server side configurations.
Select your OAuth Provider from the Select Application dropdown. In case your OAuth Provider is not listed in the drop down, please select Custom OAuth Provider to continue.
You would find appropriate URL in Instructions to configure in the bellow section of Attribute Mapping (After completing test configuration please choose URL and Add a button on your site login page).