A connection attempt failed because the connected party did not properly respond after a period of time?

directmessages

#1

When Sending Direct Message Exception raised.
{“A connection attempt failed because the connected party did not properly respond after a period of time,
or established connection failed because connected host has failed to respond x.x.x.x:443”}
System.Exception {System.Net.Sockets.SocketException}


#2

Can you share any code example?

What is x.x.x.x in this case? It looks like an underlying network exception rather than at Twitter API problem.


#3

This is the my Code and when send a Tweet using another function it works Successfully but when using the blew function to send direct message it give me an exception “The remote server returned an error: (401) Unauthorized.”

   public void SendDirectMessage(string ScreenName, string Msg)
    {
        // oauth application keys
        //Using API getting secret in token and token in secret
        var oauth_token = ""; 
        var oauth_token_secret = "";
        var oauth_consumer_key = "";
        var oauth_consumer_secret = "";

        //The Twitter json url to to send direct Message
        string resource_url = "https://api.twitter.com/1.1/direct_messages/new.json";

        // oauth implementation details
        var oauth_version = "1.0";
        var oauth_signature_method = "HMAC-SHA1";

        // unique request details
        var oauth_nonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
        var timeSpan = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
        var oauth_timestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString();

        // create oauth signature
        var baseFormat = "oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}" +
                         "&oauth_timestamp={3}&oauth_token={4}&oauth_version={5}&screen_name={6}&text={7}";
        var baseString = string.Format(baseFormat,
                                oauth_consumer_key,
                                oauth_nonce,
                                oauth_signature_method,
                                oauth_timestamp,
                                oauth_token,
                                oauth_version,
                                ScreenName,
                                Uri.EscapeDataString(Msg)
                                );

        baseString = string.Concat("GET&", Uri.EscapeDataString(resource_url), "&", Uri.EscapeDataString(baseString));
        var compositeKey = string.Concat(Uri.EscapeDataString(oauth_consumer_secret), "&", Uri.EscapeDataString(oauth_token_secret));
        string oauth_signature;

        using (HMACSHA1 hasher = new HMACSHA1(ASCIIEncoding.ASCII.GetBytes(compositeKey)))
        {
            oauth_signature = Convert.ToBase64String(hasher.ComputeHash(ASCIIEncoding.ASCII.GetBytes(baseString)));
        }

        // create the request header
        var headerFormat = "OAuth oauth_nonce=\"{0}\", oauth_signature_method=\"{1}\", " +
                           "oauth_timestamp=\"{2}\", oauth_consumer_key=\"{3}\", " +
                           "oauth_token=\"{4}\", oauth_signature=\"{5}\", " +
                           "oauth_version=\"{6}\"";

        var authHeader = string.Format(headerFormat,
                                Uri.EscapeDataString(oauth_nonce),
                                Uri.EscapeDataString(oauth_signature_method),
                                Uri.EscapeDataString(oauth_timestamp),
                                Uri.EscapeDataString(oauth_consumer_key),
                                Uri.EscapeDataString(oauth_token),
                                Uri.EscapeDataString(oauth_signature),
                                Uri.EscapeDataString(oauth_version)
                        );


        ServicePointManager.Expect100Continue = false;

        // make the request
        //var postBody = "?text" + Uri.EscapeDataString(Msg);// +"&result_type=mixed&count=4";// +"&count=100";//
        var postBody = "?text" + Uri.EscapeDataString(Msg) + "&screen_name=" + Uri.EscapeDataString(ScreenName);// +"&result_type=mixed&count=4";// +"&count=100";//
        resource_url += postBody;
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(resource_url);
        request.Headers.Add("Authorization", authHeader);
        request.Method = "POST";
        request.ContentType = "application/x-www-form-urlencoded";

        var response = (HttpWebResponse)request.GetResponse();
        var reader = new StreamReader(response.GetResponseStream());
        var objText = reader.ReadToEnd();

    }