(C++) S3 List Buckets using an STS Session Token

This is an example showing how to use an STS session token in an Amazon AWS request. This example will list S3 buckets using a previously obtained session token.

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#include <CkXml.h>
#include <CkRest.h>
#include <CkAuthAws.h>
#include <CkStringBuilder.h>

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

    // See Get AWS STS Session Token for sample code to get the session token XML.
    CkXml xmlToken;
    bool success = xmlToken.LoadXmlFile("qa_data/tokens/aws_session_token.xml");
    if (success == false) {
        std::cout << xmlToken.lastErrorText() << "\r\n";
        return;
    }

    CkRest rest;

    // Connect to the Amazon AWS REST server.
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    success = rest.Connect("s3.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials for the REST call.
    CkAuthAws authAws;

    // The purpose of this example is to show how to use the temporary AccessKeyId, SecretAccessKey, and SessionToken.
    authAws.put_AccessKey(xmlToken.getChildContent("GetSessionTokenResult|Credentials|AccessKeyId"));
    authAws.put_SecretKey(xmlToken.getChildContent("GetSessionTokenResult|Credentials|SecretAccessKey"));
    authAws.put_ServiceName("s3");
    success = rest.SetAuthAws(authAws);

    rest.AddQueryParam("X-Amz-Security-Token",xmlToken.getChildContent("GetSessionTokenResult|Credentials|SessionToken"));

    CkStringBuilder sbResponse;
    success = rest.FullRequestNoBodySb("GET","/",sbResponse);
    if (success != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    int statusCode = rest.get_ResponseStatusCode();
    std::cout << "Response status code = " << statusCode << "\r\n";

    CkXml xml;
    xml.LoadSb(sbResponse,true);
    std::cout << xml.getXml() << "\r\n";

    if (statusCode != 200) {
        std::cout << "Failed.  See error information in the XML." << "\r\n";
        return;
    }
    }