loggedInUserDisplayName method

@override Future<String?> loggedInUserDisplayName()

Implementation

@override
Future<String?> loggedInUserDisplayName() async {
  if (!_isAuthenticated) return null;

  final accessToken = await DefaultTokenManager(
    tokenEndpoint: OneDrive.tokenEndpoint,
    clientID: client.clientID,
    redirectURL: client.redirectURL,
    scope: client.scopes,
  ).getAccessToken();

  if (accessToken == null || accessToken.isEmpty) return null;

  final response = await http.get(
    Uri.parse('https://graph.microsoft.com/v1.0/me'),
    headers: {
      'Authorization': 'Bearer $accessToken',
    },
  );

  if (response.statusCode != 200) return null;

  final json = jsonDecode(response.body);
  return json['displayName'] as String?;
}