using System;

using System.Collections.Generic;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        IMyInterface c=new MyClass();

         var _jsonSettings = new JsonSerializerSettings()

             {

                 TypeNameHandling = TypeNameHandling.All,

             };

​

        var serializedStr = JsonConvert.SerializeObject(c, Formatting.Indented, _jsonSettings);

        Console.WriteLine("*************** Serialized JSON ***************************");

        Console.WriteLine(serializedStr);

        var deserializedStructure = JsonConvert.DeserializeObject<IMyInterface>(serializedStr, _jsonSettings);

        Console.WriteLine("*************** Deserialized Checks ***********************");

    }

}

​

public interface IMyInterface {

}

​

public class MyClass: IMyInterface

{

}

​

​