acquireTokenString method Null safety

Future<String> acquireTokenString(
  1. {required List<String> scopes}
)

Acquire a token interactively for the given scopes return String {accessToken": xxx,"expiresOn" : xxx}

Implementation

Future<String> acquireTokenString({required List<String> scopes}) async {
  var res = <String, dynamic>{'scopes': scopes};
  try {
    final String? json = await _channel.invokeMethod('acquireToken', res);
    return json ?? "Error";
  } on PlatformException catch (e) {
    throw _convertException(e);
  }
}