Configuration file looks totally different

[Nyankoo]

My configuration file looks like this:

{"web":{"client_id":"56219440xxxxx-xxxxxx.apps.googleusercontent.com","project_id":"xxxxxx","auth_uri":"https://accounts.google.com/o/oauth2/auth","token_uri":"https://accounts.google.com/o/oauth2/token","auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs","client_secret":"xxxxx"}}

This is completely different than the one in the documentation. Do I miss something here?

[foritari]

You also need to get "google-services.json" file from the firebase console, from the project that connected with your google console project, and from this file take "client_id".
So you will have two files, one from google console another one from firebase console.
This works for me, for the sample project.