(Unicode C) Example: Http.DownloadAppend method

Demonstrates the DownloadAppend method.

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#include <C_CkHttpW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkFileAccessW.h>

void ChilkatSample(void)
    {
    BOOL success;
    const wchar_t *targetPath;
    HCkHttpW http;
    int statusCode;
    HCkStringBuilderW sb;
    HCkFileAccessW fac;

    success = FALSE;

    success = FALSE;

    targetPath = L"c:/temp/qa_output/download.txt";

    http = CkHttpW_Create();
    CkHttpW_putKeepResponseBody(http,TRUE);

    // Assume the target file in the local filesystem does not yet exist.
    success = CkHttpW_DownloadAppend(http,L"https://chilkatsoft.com/testData/helloWorld.txt",targetPath);
    statusCode = CkHttpW_getLastStatus(http);
    if (statusCode == 0) {
        // Unable to either send the request or get the response.
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        return;
    }

    // Should be 200.
    wprintf(L"Response status code: %d\n",statusCode);

    // Examine the contents of the file.
    sb = CkStringBuilderW_Create();
    CkStringBuilderW_LoadFile(sb,targetPath,L"utf-8");
    wprintf(L"%s\n",CkStringBuilderW_getAsString(sb));

    // Output: 
    // Response status code: 200
    // Hello World!

    // Download another text file and append to the target file.
    success = CkHttpW_DownloadAppend(http,L"https://chilkatsoft.com/testData/this_is_a_test.txt",targetPath);
    statusCode = CkHttpW_getLastStatus(http);
    if (statusCode == 0) {
        // Unable to either send the request or get the response.
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkStringBuilderW_Dispose(sb);
        return;
    }

    // Should be 200.
    wprintf(L"Response status code: %d\n",statusCode);

    // Examine the contents of the file.
    CkStringBuilderW_LoadFile(sb,targetPath,L"utf-8");
    wprintf(L"%s\n",CkStringBuilderW_getAsString(sb));

    // Output:
    // Response status code: 200
    // Hello World!This is a Test.

    // Delete the local target file.
    fac = CkFileAccessW_Create();
    CkFileAccessW_FileDelete(fac,targetPath);

    // Try to download a file that does not exist:
    success = CkHttpW_DownloadAppend(http,L"https://chilkatsoft.com/testData/does_not_exist.txt",targetPath);
    statusCode = CkHttpW_getLastStatus(http);
    if (statusCode == 0) {
        // Unable to either send the request or get the response.
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
    }
    else {
        // We got a response, and we already know it wasn't a 200 success response.
        // It should be a 404 not found.
        wprintf(L"Response status code: %d\n",statusCode);
        // Examine the response body.
        wprintf(L"Response body:\n");
        wprintf(L"%s\n",CkHttpW_lastResponseBody(http));
    }



    CkHttpW_Dispose(http);
    CkStringBuilderW_Dispose(sb);
    CkFileAccessW_Dispose(fac);

    }