public async Task <DlBook> GetLatestDlBookDetail(UserCredential userCredential, string deviceId, int bookId, CancellationToken cancelToken)
{
var downloadValidation = await deliveryService.DlFileDetailByDlId(userCredential.Email, deviceId, bookId, cancelToken);
if (!downloadValidation.IsSuccess)
{
throw new Exception("downloadValidate failure");
}
var serverDlBook = JsonConvert.DeserializeObject <DlBook>(downloadValidation.Content);
if (serverDlBook != null)
{
serverDlBook.ServiceCode = userCredential.ServiceCode;
serverDlBook.Email = userCredential.Email;
}
else
{
throw new NullReferenceException();
}
return(serverDlBook);
}
