Login With Google Bad_authentication Issue

E/Auth: [GoogleAccountDataServiceImpl] getToken() -> BAD_AUTHENTICATION. Account: , App: com.google.android.apps.maps, Service: oauth2:https://www.googl

Solution 1:

It seems like you have a configuration issue with Firebase, Google API console and google-services.json file.

You would be aware of that release APK and debug APK have different SHA1 and different API keys for Google Services. So you need to add both of them on Firebase inside Project Setting. After doing this you need to download google-services.json file and put it in your project. Create a fresh release build with your keystore and publish you app on Google Play store.

Hope it helps.

Solution 2:

By enrolling Your application (“app”) in Google Play App Signing (GPAS) service,You consent to be bound by these terms,

1. Key Generation and Storage

   1.1. GPAS is an optional service that provides a secure means of handling Your app signing key.

   1.2. By enrolling Your existing app in GPAS, You agree to give Your existing app’s signing key to Google and to secure or delete Your copy(ies) of the key. For new apps, Google will generate a new app signing key for Your app.

   1.3. You will have the ability to download and review any APKs you publish that are signed by Google.

You need to add SHA-1 fingerprint from App signing certificate to your fire base console also, this is the new update from google effective as of May 17th 2017.