public BooksQuery()
{
IBooksRepository bookRepository = new BooksRepository();
this.Field <BookType>(
"book",
arguments: new QueryArguments(new QueryArgument <StringGraphType> {
Name = "isbn"
}),
resolve: context =>
{
var id = context.GetArgument <string>("isbn");
return(bookRepository.BookByIsbn(id));
});
this.Field <ListGraphType <BookType> >(
"books",
resolve: context => bookRepository.AllBooks());
}