help with firebase on android app

for notifications to work with my firebase in the android app, I just need to put my google-services.json in the app folder ??? because I noticed that the settings that firebase asks for are already added in the build.gradle files

Yes, you have to add it.

just this? After adding google-services.json, will the notifications work?

Assuming you did everything else correctly - yes.

I created a project in Firebase, then I went to Add Firebase to your Android app, then I downloaded the json that generated and placed it in the app folder in Android Studio. just this

Which flavor are you building?

It worked, thank you, I just needed a clean project

I thought I celebrated too early, it didn't work :(

precisa de mais alguma configuração ?

What IAM role permissions are required in Google Cloud to enable sending notifications using Firebase?

Não sei o que quer dizer