string upload_id = ((long)(DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0)).TotalMilliseconds).ToString();
        string boundary = account.Guid.ToString("D");

        HttpWebRequest request = WebRequest.CreateHttp(@"https://i.instagram.com/api/v1/upload/photo/");
        request.Method = "POST";
        request.CookieContainer = account.Session;
        request.UserAgent = account.UserAgent;
        request.Proxy = account.Proxy;
        request.Timeout = 1000 * 100;


        byte[] photo = Encoding.UTF8.GetBytes(file);
        string postdata = "--" + boundary + "rn" +
        "Content-Disposition: form-data; name="upload_id" " + "rnrn" + upload_id.ToString() + "rn" +
        "Content-Disposition: form-data; name="_uuid"" + "rnrn" + account.Guid.ToString() + "rn" +
        "Content-Disposition: form-data; name="_csrftoken"rnrn" + account.CsrfToken + "rn" +
        "Content-Disposition: form-data; name="image_compression"rnrn" + '{'+""lib_name":"jt","lib_version":"1.3.0","quality":"87""+'}'+"rn" +
        "Content-Disposition: form-data; name="photo"; filename="pending_media_" + ((long)(DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0)).TotalMilliseconds).ToString() + ".jpg"rn" +
        "Content-Transfer-Encoding: binaryrn" +
        "Contenr-type: application/octet-streamrnrn" + photo + "rn" + "--" + boundary + "--";
        byte[] bytes = Encoding.UTF8.GetBytes(postdata);

        request.SetHeaders(account.UserAgent, account.Session);
        request.Headers.Add("X-IG-Connection-Type: WIFI");
        request.Headers.Add("X-IG-Capabilities: 3Q==");
        request.ContentType = "multipart/form-data; boundary=" + boundary;
        request.ContentLength = postdata.Length;
        request.Headers.Add(HttpRequestHeader.AcceptLanguage, "en-US");
        using (Stream requestStream = request.GetRequestStream())
            requestStream.Write(bytes, 0, bytes.Length);