public async Task <IActionResult> DeleteAuthor(int id) { var author = await _authorServices.FindAuthorAsync(id); if (author is null) { return(Ok(new { error_message = "Khong tim thay tac gia" })); } bool IsDeleteAuthor = await _authorServices.DeleteAuthorAsync(author); if (IsDeleteAuthor) { return(Ok(new { data = "Xoa tac gia thanh cong", success = true })); } else { return(Ok(new { error_message = "Xoa that bai, co loi xay ra" })); } }