I’m making an app with expo and I want to authenticate in the app using email/password or using google.

I added email and password authentication using this code:

// this is the function for initiating firebase
function init_firebase(){
  const firebaseConfig = {
    apiKey: ' AIzaSyCs-qNMrjikN5VqKdY737K22QSsT9MmtGI ',
    authDomain: 'tiod-app.firebaseapp.com',
    databaseURL: 'https://tiod-app-default-rtdb.europe-west1.firebasedatabase.app/',
    projectId: 'tiod-app',
    appId: '1:659850692368:android:bf812065131d214dfb0795',
  };
  const app = initializeApp(firebaseConfig);
  const auth = initializeAuth(app, {
    persistence: getReactNativePersistence(ReactNativeAsyncStorage)
  });
  return {app, auth};
}
export const firebase = init_firebase();

and

// the function for signing up
async function Signup_email(navigation: NavigationProp<ParamListBase>, email: string, password: string){
    const login = await createUserWithEmailAndPassword(firebase.auth, email, password).catch((e) => {
      console.log(e);
    });
    if (login){return;}
    navigation.navigate('Main', {email});
}
// the function for logging in
async function Login_email(navigation: NavigationProp<ParamListBase>, email: string, password: string,
){
  const app = firebase;
  if (!app){return;}
  const login = await signInWithEmailAndPassword(app.auth, email, password).catch((e) => {console.log(e)});
  if (!login){return;}
  navigation.navigate('Loading', login.user.toJSON());
}

and it worked well, but for authentication with google, I realized that the function that is used for redirecting to sign in (which is signInWithRedirect) is undefined since it affects the DOM.

so I used @react-native-google-signin/google-signin to attempt to do the same thing. I managed to
use google to sign in using this code:

async function Login_google(navigation: NavigationProp<ParamListBase>){
  const result = await GoogleSignin.signIn().catch((e) => {console.log(e)});
  if (!result){return;}
  navigation.navigate('Loading', result.user);
}

also, I configured google signin in main

    GoogleSignin.configure({webClientId: "659850692368-bf2itlqkbbroq5cd3e8lq969qtk8ks5i.apps.googleusercontent.com",
        googleServicePlistPath: "../GoogleService-Info.plist",
    })

but for some reason, after logging in with google the user dashboard in firebase is still empty