new_hope.dart

Future<void> main() async {
  final user = await getCurrentUsernameAndEmailWithNamedParameters();
  print('Username is ${user.username}');
  print('Email is ${user.email}');
  
  final anotherUser = await getCurrentUsernameAndEmailWithNamedParameters();
  print('Username is ${anotherUser.$1}');
  print('Email is ${anotherUser.$2}');
}

Future<({String username, String email})> getCurrentUsernameAndEmailWithNamedParameters() async {
  ({String username, String email}) userRecord;
  final authenticatedUser = await Amplify.Auth.getCurrentUser();
  final currentCognitoUser = await Amplify.Auth.fetchUserAttributes();
  final email= currentCognitoUser.firstWhere(
        (element) {
      return element.userAttributeKey == CognitoUserAttributeKey.email;
    },
  ).value;
  userRecord = (username: authenticatedUser.username, email: email);
  return userRecord;
}

Future<(String, String)> getCurrentUsernameAndEmailWithoutParameters() async {
  (String, String) userRecord;
  final authenticatedUser = await Amplify.Auth.getCurrentUser();
  final currentCognitoUser = await Amplify.Auth.fetchUserAttributes();
  final email= currentCognitoUser.firstWhere(
        (element) {
      return element.userAttributeKey == CognitoUserAttributeKey.email;
    },
  ).value;
  userRecord = (authenticatedUser.username, email);
  return userRecord;
}