JsonConverter resolve reference - json.net

Question

I have a custom JsonConverter which handles the creation of derived types during deserialization, in most cases this works as expected.
The situation where I have an issue is, when there are referenced objects in the json structure.
Is it possible to rely on the default deserialization when we detect a reference? What should the ReadJson method return?
In the sample below we return null in case of a reference.
if (reader.TokenType == JsonToken.Null) return null;
var jObject = JObject.Load(reader);
JToken token;
if (jObject.TryGetValue("$ref", out token))
{
return null;
}
Or must we implement a custom ReferenceResolver as the default one can't be used in the converter (only internal use)?
Any suggestions are welcome.

Answer 1

After some extra testing, I found the solution myself. When I first was trying using the default ReferenceResolver I got an exception saying "The DefaultReferenceResolver can only be used internally.". This pointed my in the wrong direction, you can use the DefaultReferenceResolver in your converter but I was calling it the wrong way...
Solution:
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.Null) return null;
var jObject = JObject.Load(reader);
string id = (string)jObject["$ref"];
if (id != null)
{
return serializer.ReferenceResolver.ResolveReference(serializer, id);
}
// Custom instance creation comes here
}