public class JsonContent : HttpContent
{
    public object SerializationTarget { get; private set; }
    public JsonContent(object serializationTarget)
    {
        SerializationTarget = serializationTarget;
        this.Headers.ContentType = new MediaTypeHeaderValue("application/json");
    }
    protected override async Task SerializeToStreamAsync(Stream stream, TransportContext context)
    {
        using (StreamWriter writer = new StreamWriter(stream))
        using (JsonTextWriter jsonWriter = new JsonTextWriter(writer))
        {
            JsonSerializer ser = new JsonSerializer();
            ser.Serialize(jsonWriter, SerializationTarget);
        }



    // Should I dispose here or not ? When I do, the stream is 'closed'

    // When I do not dispose, the body seems to be empty

    // Should I Wrap this in a await Task.Run(() => {});
    // To make it 'async'






    }

    protected override bool TryComputeLength(out long length)
    {
        //we don't know. can't be computed up-front
        length = -1;
        return false;
    }
}