Serialize only interface properties to JSON with Json.net

Question

With a simple class/interface like this

public interface IThing
{
    string Name { get; set; }
}

public class Thing : IThing
{
    public int Id { get; se         


        

Answer 1

The method I use,

public class InterfaceContractResolver : DefaultContractResolver
{
    private readonly Type _InterfaceType;
    public InterfaceContractResolver (Type InterfaceType)
    {
        _InterfaceType = InterfaceType;
    }

    protected override IList CreateProperties(Type type, MemberSerialization memberSerialization)
    {
        //IList properties = base.CreateProperties(type, memberSerialization);
        IList properties = base.CreateProperties(_InterfaceType, memberSerialization);
        return properties;
    }
}

// To serialize do this:
var settings = new JsonSerializerSettings() {
     ContractResolver = new InterfaceContractResolver (typeof(IThing))
});
string json = JsonConvert.SerializeObject(theObjToSerialize, settings);