(Unicode C++) Amazon Glacier Remove Tags from Vault

Demonstrates how to remove one or more tags from the set of tags attached to a vault.

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#include <CkRestW.h>
#include <CkAuthAwsW.h>
#include <CkJsonObjectW.h>
#include <CkStringBuilderW.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 Amazon AWS REST server in the desired region.
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    bool success = rest.Connect(L"glacier.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials.
    CkAuthAwsW authAws;
    authAws.put_AccessKey(L"AWS_ACCESS_KEY");
    authAws.put_SecretKey(L"AWS_SECRET_KEY");
    authAws.put_ServiceName(L"glacier");
    authAws.put_Region(L"us-west-2");

    success = rest.SetAuthAws(authAws);

    // --------------------------------------------------------------------------
    // Note: The above REST connection and setup of the AWS credentials
    // can be done once.  After connecting, any number of REST calls can be made.
    // The "auto reconnect" property passed to rest.Connect indicates that if
    // the connection is lost, a REST method call will automatically reconnect
    // if needed.
    // --------------------------------------------------------------------------

    // 
    // For more information, see Glacier Remove Tags from Vault Reference Documentation
    // 
    rest.AddHeader(L"x-amz-glacier-version",L"2012-06-01");

    // Create the JSON indicating the tags to be removed:
    // Use this online tool to generate the code from sample JSON: 
    // Generate Code to Create JSON

    // {
    //    "TagKeys": [
    //       "tagName1",
    //       "tagName2"
    //    ]
    // }

    CkJsonObjectW json;
    json.UpdateString(L"TagKeys[0]",L"tagName1");
    json.UpdateString(L"TagKeys[1]",L"tagName2");
    // ...
    // ...

    CkStringBuilderW sbRequestBody;
    json.EmitSb(sbRequestBody);

    // Add tags to the vault named "chilkat"
    CkStringBuilderW sbResponseBody;
    success = rest.FullRequestSb(L"POST",L"/AWS_ACCOUNT_ID/vaults/chilkat/tags?operation=remove",sbRequestBody,sbResponseBody);
    if (success != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

    int respStatusCode = rest.get_ResponseStatusCode();
    if (respStatusCode >= 400) {
        wprintf(L"Response Status Code = %d\n",respStatusCode);
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",rest.responseHeader());
        wprintf(L"Response Body:\n");
        wprintf(L"%s\n",sbResponseBody.getAsString());
        return;
    }

    // Success is indicated by a 204 response status with an empty response body.
    wprintf(L"response status code = %d\n",respStatusCode);
    }