I'm so happy to see Json.NET being baked into Web API, however, I still have to write my own custom MediaTypeFormatter to support Bson.  Json.NET supports this very easily using the same JsonSerializer.

Something like:

if (contentHeaders.ContentType.MediaType.Equals("application/bson", StringComparison.InvariantCultureIgnoreCase))
{
    // using new BsonWriter(stream) ...
    Serialize(bsonWriter, ...)
}
else
{
    // using new JsonTextWriter(new StreamWriter(stream)) ...
    Serialize(jsonTextWriter, ...
}

private static void Serialize(JsonWriter jsonWriter, Object instance, JsonSerializerSettings serializerSettings)

Bson uses the same JsonSerializer / JsonSerializerSettings.  BsonReader and BsonWriter inherit from JsonReader JsonWriter respectively.

Please consider adding this support. Thanks!

Not a bad idea -- please log an issue so that we can track.

Henrik

[1] http://aspnetwebstack.codeplex.com/workitem/list/advanced

Thanks for the consideration Henrik.  I've created an issue: http://aspnetwebstack.codeplex.com/workitem/241