[keycloak-user] Social login Issue

Hi, I'm currently part of a team implementing a single sign on solution using Open ID Connect and Keycloak. We have a number of services which all interact with a central Json Rest API. The API is secured according to the second Open ID Connect use case as described in the Keycloak docs <https://keycloak.gitbooks.io/securing-client-applications-guide/content/v...;. That is to say, all API clients must obtain a digitally signed access token from Keycloak and then pass it over on every request (in our case, within the Authorization header). One of the services is a native mobile application. This application already has social login/registration implemented and the team would prefer not to redirect to Keycloak as per the standard authorization code flow. Instead, they would like to obtain a Keycloak access token using the previously obtained social login credentials. This seems to pose a problem as the direct grant flow doesn't support social login. Is there any way to achieve this? Kind Regards, Tom Pearson