//put /test/putRegs

        public string putRegs()

        {

            // Create the web request

            HttpWebRequest request = WebRequest.Create("http://*****/devices/22052/regs") as HttpWebRequest;

            // Add authentication to request

            string _auth = string.Format("{0}:{1}", "**username**", "**password**");

            string _enc = Convert.ToBase64String(Encoding.ASCII.GetBytes(_auth));

            string _cred = string.Format("{0} {1}", "Basic", _enc);

            request.Headers[HttpRequestHeader.Authorization] = _cred;

            // Set type to POST

            request.Method = "PUT";

            request.ContentType = "application/json";

            using (var streamWriter = new StreamWriter(request.GetRequestStream()))

            {

                string json = "[{\"addr\":2100,\"value\":99}]";// Need to put data here to pass to the API.**

                streamWriter.Write(json);

            }

            // Get response

            using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)

            {

                // Get the response stream

                StreamReader reader = new StreamReader(response.GetResponseStream());

                // Console application output

                //Console.WriteLine(reader.ReadToEnd());

                return (reader.ReadToEnd());

            }

        }