MalwareMultiScan/MalwareMultiScan.Shared/Data/Requests/BasicRequest.cs

using System;
using System.ComponentModel.DataAnnotations;
using MalwareMultiScan.Shared.Attributes;

namespace MalwareMultiScan.Shared.Data.Requests
{
    public abstract class BasicRequest
    {
        [Required]
        [UrlValidation]
        public Uri CallbackUrl { get; set; }
    }
}