FB login - Firebase.Auth() Error: The supplied auth credential is malformed or has expired

Question

I\'m using react-native-fbsdk: 0.8.0, react-native-firebase: ^5.2.2, react-native: ^0.57.4 and Facebook Test User account.

This happened so suddenly. On

Answer 1

It is probably not helpful for OP as question is old but today I had exactly the same issue when implementing 3rd party login with Firebase and this question popped up as top result on the Google.

I had the same error message during implementation of GitHub login. The issue was on my side as I wrongly copied API and secret API keys.

Double check your keys and make sure you didn't copy anything extra like I did (it had extra space + extra word).