Lobby - Logging in.js

const login = user => {
    AsyncStorage.setItem(savedUserKey, JSON.stringify(user))
      .then(async () => {
        try {
          setCurrentUser(user);
          const authorizationStatus = await messaging().requestPermission();
          if (
            authorizationStatus === messaging.AuthorizationStatus.AUTHORIZED ||
            authorizationStatus === messaging.AuthorizationStatus.PROVISIONAL
          ) {
            if (Platform.OS === 'ios') {
              const token = await messaging().getAPNSToken();
              await sendbird.registerAPNSPushTokenForCurrentUser(token);
            } else {
              const token = await messaging().getToken();
              await sendbird.registerGCMPushTokenForCurrentUser(token);
            }
          }
        } catch (err) {
          console.error(err);
        }
      })
      .catch(err => console.error(err));
  };