ServiceStack.HttpUtils.SendBytesToUrl C# (CSharp) Method

        public static byte[] SendBytesToUrl(this string url, string method = null,
            byte[] requestBody = null, string contentType = null, string accept = "*/*",
            Action<HttpWebRequest> requestFilter = null, Action<HttpWebResponse> responseFilter = null)
        {
            var webReq = (HttpWebRequest)WebRequest.Create(url);
            if (method != null)
                webReq.Method = method;

            if (contentType != null)
                webReq.ContentType = contentType;

            webReq.Accept = accept;
            webReq.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip,deflate");
            webReq.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;

            if (requestFilter != null)
            {
                requestFilter(webReq);
            }

            if (ResultsFilter != null)
            {
                return ResultsFilter.GetBytes(webReq);
            }

            if (requestBody != null)
            {
                using (var req = webReq.GetRequestStream())
                {
                    req.Write(requestBody, 0, requestBody.Length);
                }
            }

            using (var webRes = webReq.GetResponse())
            {
                if (responseFilter != null)
                    responseFilter((HttpWebResponse)webRes);

                using (var stream = webRes.GetResponseStream())
                {
                    return stream.ReadFully();
                }
            }
        }