(Unicode C) S3 Find Bucket Region

Demonstrates how to find out the region of an S3 bucket.

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#include <C_CkRestW.h>
#include <C_CkAuthAwsW.h>
#include <C_CkXmlW.h>

void ChilkatSample(void)
    {
    HCkRestW rest;
    BOOL bTls;
    int port;
    BOOL bAutoReconnect;
    BOOL success;
    HCkAuthAwsW authAws;
    const wchar_t *strResult;
    int responseStatusCode;
    HCkXmlW xml;

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

    rest = CkRestW_Create();

    // Connect to the Amazon AWS REST server using the correct region (in this example, "us-west-2")
    bTls = TRUE;
    port = 443;
    bAutoReconnect = TRUE;
    success = CkRestW_Connect(rest,L"s3.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials for the REST call.
    authAws = CkAuthAwsW_Create();
    CkAuthAwsW_putAccessKey(authAws,L"AWS_ACCESS_KEY");
    CkAuthAwsW_putSecretKey(authAws,L"AWS_SECRET_KEY");
    CkAuthAwsW_putServiceName(authAws,L"s3");
    success = CkRestW_SetAuthAws(rest,authAws);

    // The bucket name we want to know about is set in the HOST header.
    // In this example, we want to find the region for the "chilkat.qa" bucket.
    CkRestW_putHost(rest,L"chilkat.qa.s3.amazonaws.com");

    // Send the GET request to query the bucket location.
    strResult = CkRestW_fullRequestNoBody(rest,L"GET",L"/?location");
    if (CkRestW_getLastMethodSuccess(rest) != TRUE) {
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkRestW_Dispose(rest);
        CkAuthAwsW_Dispose(authAws);
        return;
    }

    responseStatusCode = CkRestW_getResponseStatusCode(rest);
    wprintf(L"Response status code = %d\n",responseStatusCode);
    if (responseStatusCode != 200) {
        wprintf(L"%s\n",CkRestW_responseHeader(rest));
        wprintf(L"%s\n",strResult);
        wprintf(L"Failed.\n");
        CkRestW_Dispose(rest);
        CkAuthAwsW_Dispose(authAws);
        return;
    }

    wprintf(L"%s\n",strResult);

    // The result contains XML like this:
    // <?xml version="1.0" encoding="UTF-8"?>
    // <LocationConstraint xmlns="http://s3.amazonaws.com/doc/2006-03-01/">us-west-2</LocationConstraint>

    // Get the "us-west-2" from the XML
    xml = CkXmlW_Create();
    success = CkXmlW_LoadXml(xml,strResult);
    wprintf(L"region = %s\n",CkXmlW_content(xml));


    CkRestW_Dispose(rest);
    CkAuthAwsW_Dispose(authAws);
    CkXmlW_Dispose(xml);

    }