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Duplicate TLS 1.2 SOAP Request that uses .NET HttpWebRequest

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This example shows how to duplicate a SOAP request that uses .NET's HttpWebRequest and requires TLS 1.2.

        string xmlRequest = "...envelope..."

        System.Net.ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;

        string url = "https://www3.gsis.gr/webtax2/wsgsis/RgWsPublic/RgWsPublicPort?WSDL";
        HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
        req.Method = "POST";
        req.ContentType = "text/xml;charset=UTF-8";

        byte[] reqBytes = new System.Text.UTF8Encoding().GetBytes(xmlRequest);

        req.ContentLength = reqBytes.Length;

        try {
            using (System.IO.Stream reqStream = req.GetRequestStream()) {
                reqStream.Write(reqBytes, 0, reqBytes.Length);
                reqStream.Flush();
                reqStream.Close();
            }

        } catch (Exception ex) {
            actionLogger.AddError(ex.Message, null);
            actionLogger.Validate();
        }

        string xmlResponse = null;
        using (HttpWebResponse resp = (HttpWebResponse)req.GetResponse()) {
            try {
                using (System.IO.StreamReader sr = new System.IO.StreamReader(resp.GetResponseStream())) {
                    xmlResponse = sr.ReadToEnd();
                    sr.Close();
                }
            } catch (Exception ex) {
                actionLogger.AddError(ex.Message, null);
                actionLogger.Validate();
            } finally {
                resp.Close();
            }
        }

Go

    success := false

    // This example assumes Chilkat HTTP to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    http := chilkat.NewHttp()

    req := chilkat.NewHttpRequest()
    req.SetHttpVerb("POST")
    req.SetContentType("text/xml")
    req.SetSendCharset(true)
    req.SetCharset("utf-8")
    req.SetPath("/webtax2/wsgsis/RgWsPublic/RgWsPublicPort?WSDL")

    xmlRequest := "...SOAP envelope..."
    req.LoadBodyFromString(xmlRequest)

    http.SetFollowRedirects(true)

    // Chilkat will automatically offer TLS 1.2.  It is the server that
    // chooses the TLS protocol version.  Assuming the server wishes to use
    // TLS 1.2, then that is what will be used.
    resp := chilkat.NewHttpResponse()
    success = http.HttpSReq("www3.gsis.gr",443,true,req,resp)
    if success == false {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        req.DisposeHttpRequest()
        resp.DisposeHttpResponse()
        return
    }

    xmlResponse := resp.BodyStr()
    fmt.Println(xmlResponse)

    http.DisposeHttp()
    req.DisposeHttpRequest()
    resp.DisposeHttpResponse()