Tools from Google for building app infrastructure, improving app quality, and growing your business
Login to the Firebase console https://console.firebase.google.com/u/0/
Create a project for the application.
Just like in google play, you can also grant access to firebase to other google accounts. To do this, go to the project settings and select Users and permissions
Select add member
Specify email and role: Owner or Editor
An invitation to join will be sent to the entered email address.
Add a new app to the project. Select Android.
Specify a Package Name (usually the reverse domain + app, e.g. com.mydating.app)
Register, download the google-services.json file, and give it to the developer
Setting up authorization via Google account
Open the Authentication menu. Select Google
Specify an email address and activate it. Copy the Web Client ID and give it to the developer.
Setting up authorization via Facebook
Copy the App ID in the app settings and give it to the developer
Specify Site URL
Click Add Platform and select Android.
Select Google Play in the Google Play store.
Get key hashes from the developer and specify in the field
Create a new release
In Production or Testing > Internal testing on the Releases tab, create and upload a new release (you need to get a build before you do this).
After downloading the build, you need to go to Store > App integrity and copy the SHA-1 certificate fingerprint value
This value should be added to the app's settings in Firebase
After that, the production version of the application can be sent for validation