public void Execute(FeedbackRequest request, Action<FeedbackResponse> responseCallback, Action<Exception> exceptionCallback)
{
var url = "https://go.urbanairship.com/api/device_tokens/feedback/?since=" + request.Since.ToIso8601();
var webRequest = RequestBuilder.Build(url);
webRequest.Method = "GET";
webRequest.ContentType = "application/json";
var asyncRequest = new AsyncRequest
{
ReadFromResponse = stream => responseCallback(FeedbackResponseDeSerializer.DeSerialize(stream)),
Request = webRequest,
ExceptionCallback = exceptionCallback,
};
asyncRequest.Execute();
}