public async Task <ActionResult <IEnumerable <AuthorDto> > > GetAll(bool onlyActive = true)
        {
            try
            {
                var result = await _authorsManager.GetAllAsync(onlyActive);

                return(Ok(result));
            }
            catch (Exception ex)
            {
                return(Ok(new { stack = ex.StackTrace, message = ex.Message, innerMessage = ex.InnerException?.Message ?? "empty" }));
            }
        }