public ActionResult <BookDto> GetBookForAuthor(Guid authorId, Guid bookId)
{
if (!_bookLibraryRepository.AuthorExists(authorId))
{
return(NotFound());
}
var bookForAuthorFromRepo = _bookLibraryRepository.GetBook(authorId, bookId);
if (bookForAuthorFromRepo == null)
{
return(NotFound());
}
return(Ok(_mapper.Map <BookDto>(bookForAuthorFromRepo)));
}