Firebase Auth: Requests from this Android client application com.xxx are blocked

Question

I\'m implementing the standard tutorial for Firebase AuthUI in my android app. However, when testing I try to sign-in using Google sign-in from within the app and get the follow

Answer 1

In my case:

If you are using Google Play App Signing, just login into Firebase go into "project settings"->"integration" and press a button to link Google Play with firebase, SHA-1 will be added automatically. Download and change your new google-services.json

If you keep having problems, go to Google Cloud API, click on the hamburger icon on the top left -> APIs and Services -> Credentials. Choose the API Key that you're using. Under restrictions, select "None".