Json.NET Test

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Threading.Tasks;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;

namespace JsonTestApp
{
    class Program
    {
        static void Main(string[] args)
        {
            var data = new UserModel();
            data.UserID = 100;
            data.UserName = "太郎";
            data.LangCode = "ja";

            using (var jsonWrite = new StreamWriter("test.json"))
            {
                var serialize = JsonConvert.SerializeObject(data);
                jsonWrite.WriteLine(serialize);
            }

        }

        [JsonObject("user")]
        public class UserModel
        {
            [JsonProperty("id")]
            public int UserID { get; set; }
            [JsonProperty("name")]
            public string UserName { get; set; }
            [JsonProperty("lang")]
            public string LangCode { get; set; }
        }

    }
}