Facebook login in react-native & firebase 3.1

Question

Recently firebase team have released their new version 3.1 of firebase which is compatible with react-native. I'm trying to use the new firebase api with facebook.

Since firebase doesn't support popup or redirect in react-native, i'm using react-native-fbsdk to get the access token but when I'm trying to use auth.signInWithCredential, the sign in fail on

code: "auth/app-not-authorized",
message: "This app, identified by the domain where it's hosted, is not authorized to use Firebase Authentication with the provided API key. Review your key configuration in the Google API console."

This is my code. any help would be very much appreciated.

import { LoginManager, AccessToken} from 'react-native-fbsdk';
import firebase from '../Services/firebase';

const auth = firebase.auth();
const provider = firebase.auth.FacebookAuthProvider;

LoginManager.logInWithReadPermissions(['public_profile'])
.then(loginResult => {
    if (loginResult.isCancelled) {
        console.log('user canceled');
        return;
    }
    AccessToken.getCurrentAccessToken()
    .then(accessTokenData => {
        const credential = provider.credential(accessTokenData.accessToken);
        return auth.signInWithCredential(credential);
    })
    .then(credData => {
        console.log(credData);
    })
    .catch(err => {
        console.log(err);
    });
});

Answer 1

We managed to find the problem. It seems that the credentials firebase gave us were obsolete for some reason.
From google console we found out, a new apiKey was somehow generated (maybe during the upgrade to firebase 3?) and the firebase key was marked as Previous key.
Once we updated the new apiKey in our application, everything started working.