Create an Object in https://api.asm.skype.com/v1/objects

createaobjectonskype.cs

public static string CreateObject(string skypeToken, string skypeId)
{

            HttpWebRequest httpWebRequestw1 = WebRequest.Create("https://api.asm.skype.com/v1/objects") as HttpWebRequest;
            httpWebRequestw1.Method = "POST";
            httpWebRequestw1.UserAgent = "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0";
            httpWebRequestw1.Headers.Add("Accept-Language", "zh-tw,zh;q=0.8,en-us;q=0.5,en;q=0.3");
            httpWebRequestw1.Headers.Add("Accept-Encoding", "gzip, deflate");
            httpWebRequestw1.Referer = ("https://web.skype.com/");
            //Authorization: skype_token [your_skype_token]
            httpWebRequestw1.Headers.Add("Authorization", "skype_token " + skypeToken);
            httpWebRequestw1.Headers.Add("Origin", "https://web.skype.com");
            httpWebRequestw1.Headers.Add("X-Client-Version", "1418/8.55.0.123//");
            httpWebRequestw1.KeepAlive = true;
            httpWebRequestw1.ContentType = "application/json; charset=UTF-8";
            //要補上 8:
             var str = "{\"permissions\":{\"" + "8:" + skypeId + "\":[\"read\"]},\"type\":\"pish/image\",\"filename\":\"ddd.jpg\"}";

            byte[] bytesw1 = Encoding.UTF8.GetBytes(str);
            using (Stream requestStream = httpWebRequestw1.GetRequestStream())
            {
                requestStream.Write(bytesw1, 0, bytesw1.Length);
            }

            var imageInfo = new ResponseImageId();

            using (WebResponse response = httpWebRequestw1.GetResponse())
            {
                StreamReader streamReader = new StreamReader(response.GetResponseStream());
                string end = streamReader.ReadToEnd();
                streamReader.Close();
                Count += 1;
                imageInfo = JsonConvert.DeserializeObject<ResponseImageId>(end);
                return imageInfo.id;
            }
}

ResponseImageId.cs

public class ResponseImageId
{
        public string id { get; set; }
}