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(MFC) Making SOAP Requests using the REST API

There's no reason a SOAP request cannot be sent using the REST API. It's only a matter of adding a SOAP specific header, and providing the SOAP XML request body. The response body is the SOAP response XML.

This example sends a request to ws.cdyne.com to get city weather by zip code.

Chilkat C/C++ Library Downloads

MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkRest.h>
#include <CkXml.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // Demonstrates how to do a SOAP request using the REST API.

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkRest rest;

    // This is the request to be sent:

    // POST /WeatherWS/Weather.asmx HTTP/1.1
    // Host: wsf.cdyne.com
    // Content-Type: text/xml; charset=utf-8
    // Content-Length: length
    // SOAPAction: "http://ws.cdyne.com/WeatherWS/GetCityWeatherByZIP"
    // 
    // <?xml version="1.0" encoding="utf-8"?>
    // <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
    //   <soap:Body>
    //     <GetCityWeatherByZIP xmlns="http://ws.cdyne.com/WeatherWS/">
    //       <ZIP>string</ZIP>
    //     </GetCityWeatherByZIP>
    //   </soap:Body>
    // </soap:Envelope>

    // Note: The application does not need to set the Host or Content-Length headers.
    // Chilkat will automatically add these headers.

    // Make the initial connection (without sending a request yet).
    bool bTls = false;
    int port = 80;
    bool bAutoReconnect = true;
    // In this particular case, it is important to connect to "wsf.cdyne.com", not "ws.cdyne.com"...
    bool success = rest.Connect("wsf.cdyne.com",port,bTls,bAutoReconnect);
    if (success != true) {
        strOut.append(rest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Add request headers:
    success = rest.AddHeader("Content-Type","text/xml; charset=utf-8");
    success = rest.AddHeader("SOAPAction","http://ws.cdyne.com/WeatherWS/GetCityWeatherByZIP");

    // Build the SOAP XML request body.
    CkXml soapXml;

    soapXml.put_Tag("soap:Envelope");
    success = soapXml.AddAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance");
    success = soapXml.AddAttribute("xmlns:xsd","http://www.w3.org/2001/XMLSchema");
    success = soapXml.AddAttribute("xmlns:soap","http://schemas.xmlsoap.org/soap/envelope/");

    soapXml.NewChild2("soap:Body","");
    success = soapXml.GetChild2(0);
    soapXml.NewChild2("GetCityWeatherByZIP","");
    success = soapXml.GetChild2(0);
    success = soapXml.AddAttribute("xmlns","http://ws.cdyne.com/WeatherWS/");
    soapXml.NewChild2("ZIP","60187");
    soapXml.GetRoot2();

    strOut.append(soapXml.getXml());
    strOut.append("\r\n");

    // Send the SOAP request
    const char *responseXml = rest.fullRequestString("POST","/WeatherWS/Weather.asmx",soapXml.getXml());
    if (rest.get_LastMethodSuccess() != true) {
        strOut.append(rest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // When successful, the response status code will equal 200.
    if (rest.get_ResponseStatusCode() != 200) {
        // Examine the request/response to see what happened.
        strOut.append("response status code = ");
        strOut.appendInt(rest.get_ResponseStatusCode());
        strOut.append("\r\n");
        strOut.append("response status text = ");
        strOut.append(rest.responseStatusText());
        strOut.append("\r\n");
        strOut.append("response header: ");
        strOut.append(rest.responseHeader());
        strOut.append("\r\n");
        strOut.append("response body (if any): ");
        strOut.append(responseXml);
        strOut.append("\r\n");
        strOut.append("---");
        strOut.append("\r\n");
        strOut.append("LastRequestStartLine: ");
        strOut.append(rest.lastRequestStartLine());
        strOut.append("\r\n");
        strOut.append("LastRequestHeader: ");
        strOut.append(rest.lastRequestHeader());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    CkXml xml;
    success = xml.LoadXml(responseXml);

    // GetXml will emit XML that is nicely indented for human viewing..
    strOut.append(xml.getXml());
    strOut.append("\r\n");

    // A sample response XML is shown below...

    // To get some information, use ChilkatPath.  For example...
    strOut.append("Temperature: ");
    strOut.append(xml.chilkatPath("soap:Body|GetCityWeatherByZIPResponse|GetCityWeatherByZIPResult|Temperature|*"));
    strOut.append("\r\n");

    strOut.append("Success.");
    strOut.append("\r\n");

    // <?xml version="1.0" encoding="utf-8" ?>
    // <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    //     <soap:Body>
    //         <GetCityWeatherByZIPResponse xmlns="http://ws.cdyne.com/WeatherWS/">
    //             <GetCityWeatherByZIPResult>
    //                 <Success>true</Success>
    //                 <ResponseText>City Found</ResponseText>
    //                 <State>IL</State>
    //                 <City>Wheaton</City>
    //                 <WeatherStationCity>West Chicago</WeatherStationCity>
    //                 <WeatherID>10</WeatherID>
    //                 <Description>Mostly Sunny</Description>
    //                 <Temperature>33</Temperature>
    //                 <RelativeHumidity>39</RelativeHumidity>
    //                 <Wind>VRB5</Wind>
    //                 <Pressure>30.33F</Pressure>
    //                 <Visibility />
    //                 <WindChill />
    //                 <Remarks />
    //             </GetCityWeatherByZIPResult>
    //         </GetCityWeatherByZIPResponse>
    //     </soap:Body>
    // </soap:Envelope>


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }

 

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