private Promise<IHttpResponse, Error> Request(string method, Uri url, Dictionary<string, string> headers, byte[] postData = null, HttpOptions options = null)
{
options = options == null ? new HttpOptions() : options;
var promise = new Promise<IHttpResponse, Error>();
var headersStr = ObjectParser.Save(headers);
var optionsStr = ObjectParser.Save(options);
var requestId = 0;
var callbackInfo = ServiceProvider.Get().externalCallback.Make(
(data) => promise.Accept(new HttpWebGLResponse(requestId, url))
);
if (method == "GET") {
requestId = MakeGetRequest(url.AbsoluteUri, headersStr, optionsStr, callbackInfo);
} else if(method == "POST") {
var pinnedBuffer = GCHandle.Alloc(postData, GCHandleType.Pinned);
requestId = MakePostRequest(url.AbsoluteUri, headersStr, pinnedBuffer.AddrOfPinnedObject(), postData.Length, optionsStr, callbackInfo);
pinnedBuffer.Free();
}
return promise;
}