(MFC) HTTPS GET URL with URL Encoded Query Params

Creates a URL with URL encoded query params, and sends an HTTPS GET to the URL.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkStringBuilder.h>
#include <CkHttp.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    bool success;

    // Create a URL with URL-encoded query params.
    CkStringBuilder sbUrl;
    sbUrl.Append("https://www.example.com/something?");

    // If we know a query param value does not have any special chars requiring URL encoding,
    // just add it.  In this case, there is no need to URL encode "123" because "123" url encoded is still just "123".
    sbUrl.Append("abc=123&xyz=");

    CkStringBuilder sbValue;
    sbValue.Append("this is a test");

    sbUrl.Append("msg=");
    sbUrl.Append(sbValue.getEncoded("url","utf-8"));

    // sbUrl contains:  https://www.example.com/something?abc=123&xyz=msg=this%20is%20a%20test
    strOut.append(sbUrl.getAsString());
    strOut.append("\r\n");

    // Send the GET request and get the response body, which is assumed to be text of some sort (HTML, XML, JSON, etc.)
    // (Chilkat automatically decompresses gzipped responses)
    CkHttp http;
    const char *responseBody = http.quickGetStr(sbUrl.getAsString());
    if (http.get_LastMethodSuccess() == false) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append("Response Body:");
    strOut.append("\r\n");
    strOut.append(responseBody);
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }