BooksSample.Program.CheckUpdateAsync C# (CSharp) 메소드

        private static async Task CheckUpdateAsync(int id)
        {
            using (var context = new BooksContext())
            {
                Book book = await context.Books.Where(b => b.BookId == id).FirstOrDefaultAsync();
                WriteLine($"updated: {book.Title}");
            }
        }
    }