stopriding method Null safety

Future<int> stopriding()

tells the server to calculate the las ride

Implementation

Future<int> stopriding() async {
  Response response;
  try {
    response = await post(
        Uri.parse(
            'http://$_server:$_port/coordinates/calculateDistance?tour_id=1'),
        headers: {
          "accept": "application/json",
          "Authorization": "Bearer $_accesstoken"
        });
  } catch (e) {
    return 503;
  }

  if (response.statusCode == 401) {
    getlogintoken(_username, _password).then((value) async {
      response = await post(
          Uri.parse(
              'http://$_server:$_port/coordinates/calculateDistance?tour_id=1'),
          headers: {
            "accept": "application/json",
            "Authorization": "Bearer $_accesstoken"
          });
    });
  }
  _tourNumber = 0;
  return response.statusCode;
}