I have integrated Facebook login and Twitter login as guided by the firebase tutorials. I am trying to integrate Instagram login for firebase authentication in my android application. I found this firebase article. I have few problems with this guidance.
In Twitter and Facebook integration, firebase provided a callback URL.
Can't we get a custom redirect-uri from Firebase just like for facebook and twitter which will handle the redirection in the same way?
It seems according to this guide, we should have an authentication server endpoint to be redirected after Instagram authentication. In that case how to continue with the authentication process without any kind of interruption in the Android application? To put it another way what is the server side implementation of the redirect-uri endpoint?