Im having a bit of trouble figuring out how to get an OAuth access token for a Yahoo user who has created an account with Google or Facebook Sign-in. I've followed the OAuth flow described in the documentation, however this seems to only apply to users who have created a Yahoo account directly.
Has anyone else had trouble getting an access token for a user who has used Google or Facebook to sign into Yahoo?
I've looked at the OAuth + OpenID flow but I'm having trouble at the point where I should perform discovery. How would one receive an request_token for yahoo with a user who signs in via a Google OpenID?
Anyone else experienced this issue?