/// <summary>
/// Deletes the specified list identifier.
/// </summary>
/// <param name="listId">The list identifier.</param>
/// <param name="userId">The user identifier.</param>
/// <returns></returns>
public async Task <int> Delete(long listId, long userId)
{
return(await _toDoListRepository.Delete(listId, userId));
}
/// <summary>
/// Delete ToDoList record.
/// </summary>
/// <param name="id">The identifier.</param>
/// <returns>
/// 1 on successful deletion else throws argument exception.
/// </returns>
public async Task <int> DeleteToDoList(int id)
{
int deletedItem = await _toDoListRepo.Delete(id, _userId);
return(deletedItem);
}