(Unicode C++) Explaining the Rest ClearResponseBodyStream Method

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The ClearResponseBodyStream method would be needed if your applicaiton called SetResponseBodyStream to send the response to a stream for one request, but then wants to subsequently do something else. The application must call ClearResponseBodyStream to no longer send responses to the stream.

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#include <CkRestW.h>
#include <CkStreamW.h>
#include <CkBinDataW.h>

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

    CkRestW rest;

    // Connect to the web server
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    bool success = rest.Connect(L"www.chilkatsoft.com",port,bTls,bAutoReconnect);
    if (success != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

    // Setup a file stream for the download
    CkStreamW fileStream;
    fileStream.put_SinkFile(L"qa_output/starfish.jpg");

    // Indicate that the call to FullRequestNoBody should send the response body
    // to fileStream if the response status code is 200.
    // If a non-success response status code is received, then nothing
    // is streamed to the output file and the error response is returned by FullRequestNoBody.
    int expectedStatus = 200;
    rest.SetResponseBodyStream(expectedStatus,true,fileStream);

    const wchar_t *responseStr = rest.fullRequestNoBody(L"GET",L"/images/starfish.jpg");
    if (rest.get_LastMethodSuccess() == false) {
        // Examine the request/response to see what happened.
        wprintf(L"response status code = %d\n",rest.get_ResponseStatusCode());
        wprintf(L"response status text = %s\n",rest.responseStatusText());
        wprintf(L"response header: %s\n",rest.responseHeader());
        wprintf(L"response body (if any): %s\n",responseStr);
        wprintf(L"---\n");
        wprintf(L"LastRequestStartLine: %s\n",rest.lastRequestStartLine());
        wprintf(L"LastRequestHeader: %s\n",rest.lastRequestHeader());
        return;
    }

    wprintf(L"downloaded starfish.jpg\n");

    // Clear the response body stream previously set in the call to SetResponseBodyStream.
    rest.ClearResponseBodyStream();

    // Download something else, but this time send the response body to bd.
    CkBinDataW bd;
    success = rest.FullRequestNoBodyBd(L"GET",L"/images/penguins.jpg",bd);
    if (success == false) {
        // Examine the request/response to see what happened.
        wprintf(L"response status code = %d\n",rest.get_ResponseStatusCode());
        wprintf(L"response status text = %s\n",rest.responseStatusText());
        wprintf(L"response header: %s\n",rest.responseHeader());
        wprintf(L"response body (if any): %s\n",bd.getString(L"utf-8"));
        wprintf(L"---\n");
        wprintf(L"LastRequestStartLine: %s\n",rest.lastRequestStartLine());
        wprintf(L"LastRequestHeader: %s\n",rest.lastRequestHeader());
        return;
    }

    // Save the contents of bd to a file.
    success = bd.WriteFile(L"qa_output/penguins.jpg");

    wprintf(L"Success: %d\n",success);
    }