firebase.messaging().getToken()
  .then(fcmToken => {
    if (fcmToken) {
      console.log("fcm token", fcmToken);
    } else {
      console.log("fcm token", "null");
    }
  });

compile(project(':react-native-firebase')) {
    transitive = false
}

implementation "com.google.android.gms:play-services-base:15.0.1"
implementation "com.google.firebase:firebase-core:16.0.1"
implementation 'com.google.firebase:firebase-auth:16.0.2'
implementation "com.google.firebase:firebase-messaging:17.1.0"

new RNGoogleSigninPackage(),
new RNFirebasePackage(),
new RNFirebaseMessagingPackage(),
new RNFirebaseAuthPackage()