protected async override Task <object> OnPerform()
{
var response = await _fuelPumpRestClient.LoadGrade(_pumpId, _switchPrepay, _tillNumber);
var data = await response.Content.ReadAsStringAsync();
switch (response.StatusCode)
{
case HttpStatusCode.OK:
return(new DeSerializer().MapGrades(data));
default:
return(await HandleExceptions(response));
}
}