I’ve gotten Google sign-in working on a sample Android app so wanted to get it to work for a web app as well. For this, I am using core-PHP, without Laravel, CI or any other framework. As per the documentation, the Google Sign-in Library is deprecated and I should be using FedCM API’s.
I have read the migration guide and blogs on FedCM, but as yet haven’t been able to find any tutorial on how to implement FedCM. Can someone kindly point me towards one?