As we continue to make com_api the platform of choice to add REST API support to Joomla, we added an interesting feature that makes it very easy to add Social Login to Mobile Apps based on Joomla.
JFBConnect from SourceCoast is one of the easiest to use social login tools. When a recent project called for a seamless social login across web and mobile we had to enhance com_api to natively allow JFBConnect as one of the ways to perform the login.
You will still need to write the social login code in the app using any good library, however, the Joomla side plumbing is provided by the JFBConnect Authentication mechanism. You just use it by setting the ‘X-AUTH’ header to ‘JFBConnect’.