Acme.BookStore.Application.Contracts/Books/CreateUpdateBookDto.cs

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using System;
using System.ComponentModel.DataAnnotations;

namespace Acme.BookStore.Books
{
    public class CreateUpdateBookDto
    {
        public Guid AuthorId { get; set; }

        [Required]
        [StringLength(128)]
        public string Name { get; set; }

        [Required]
        public BookType Type { get; set; } = BookType.Undefined;

        [Required]
        [DataType(DataType.Date)]
        public DateTime PublishDate { get; set; } = DateTime.Now;

        [Required]
        public float Price { get; set; }
    }
}