public async Task DeleteIfExist(Guid[] operationIds)
 {
     await operationIds.ForEachAsyncSemaphore(8,
                                              operationId => _storage.DeleteIfExistAsync(
                                                  UnconfirmedTransactionEntity.GeneratePartitionKey(operationId),
                                                  UnconfirmedTransactionEntity.GenerateRowKey()));
 }
 public async Task <IObservableOperation> GetById(Guid opId)
 {
     return(await _storage.GetDataAsync(ObservableOperationEntity.ByOperationId.GeneratePartitionKey(opId),
                                        UnconfirmedTransactionEntity.GenerateRowKey()));
 }