// get book
public override Task <Book> GetBook(GetBookRequest request, ServerCallContext context)
{
Book book = _shelfBookRepository.GetBook(request.Shelf, request.Book);
return(Task.FromResult(book));
}
public IActionResult GetBook(long shelfId, long bookId)
{
Book book = _shelfBookRepository.GetBook(shelfId, bookId);
return(Ok(book));
}
