(MFC) Send XMLHttpRequest and Get Response

Demonstrates how to send an HTTP XML request and retrieve the response.

Downloads:

MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

FreeBSD C++ Libraries

HP-UX C++ Libraries

BlackBerry QNX C++ Libraries

// Needs #include <CkHttp.h>
// Needs #include <CkHttpResponse.h>

    CkString strOut;

    CkHttp http;

    bool success;

    //  Any string unlocks the component for the 1st 30-days.
    success = http.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  The XML sent in the body of the request is application
    //  specified -- it should contain whatever the server-side
    //  application is expecting..
    const char * xmlStr;
    xmlStr = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><appXml><something>123</something></appXml>";

    //  The PostXml method may be called to send the XMLHttpRequest
    //  using the "POST" HTTP method (also known as "verb").
    const char * urlEndpoint;
    urlEndpoint = "http://www.chilkatsoft.com/xmlEcho.asp";
    const char * xmlCharset;
    xmlCharset = "utf-8";

    CkHttpResponse *response = 0;
    response = http.PostXml(urlEndpoint,xmlStr,xmlCharset);
    if (response == 0 ) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  The raw HTTP request sent by the above call is:
    //  
POST /xmlEcho.asp HTTP/1.1
Content-Type: text/xml
User-Agent: Chilkat/1.0.0 (+http://www.chilkatsoft.com/ChilkatHttpUA.asp)
Host: www.chilkatsoft.com
Accept: */*
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*; q=0.7
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip
Content-Length: 81

<?xml version="1.0" encoding="UTF-8"?><appXml><something>123</something></appXml>


    //  Examine the Body of the HTTP response
    //  This would be the XML response sent by the server.
    strOut.append(response->bodyStr());
    strOut.append("\r\n");

    delete response;

    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());