(Unicode C++) S3 Download Specific Version of File

Demonstrates how to download a file from the Amazon S3 service using the versionId query parameter.

Note: This example requires Chilkat v9.5.0.89 or later. (A problem regarding AwsSubResources w/ downloads was fixed shortly after the v9.5.0.88 release.)

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#include <CkHttpW.h>

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

    CkHttpW http;

    http.put_AwsAccessKey(L"AWS_ACCESS_KEY");
    http.put_AwsSecretKey(L"AWS_SECRET_KEY");
    http.put_S3Ssl(true);
    http.put_AwsRegion(L"us-east-1");
    http.put_AwsEndpoint(L"s3.amazonaws.com");
    http.put_AwsSubResources(L"versionId=x8UPzRsgskmbe55lEQvhLi25PQl2lcFH");

    const wchar_t *bucketName = L"chilkat100";
    const wchar_t *objectName = L"frenchUtf8.txt";
    const wchar_t *localFilePath = L"qa_output/frenchUtf8.txt";

    bool success = http.S3_DownloadFile(bucketName,objectName,localFilePath);

    if (success != true) {
        wprintf(L"%s\n",http.lastErrorText());
    }
    else {
        wprintf(L"File downloaded.\n");
    }
    }