(Java) 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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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // 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 = new CkXml();
    boolean success = xmlToken.LoadXmlFile("qa_data/tokens/aws_session_token.xml");
    if (success == false) {
        System.out.println(xmlToken.lastErrorText());
        return;
        }

    CkRest rest = new CkRest();

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

    // Provide AWS credentials for the REST call.
    CkAuthAws authAws = new CkAuthAws();

    // 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 = new CkStringBuilder();
    success = rest.FullRequestNoBodySb("GET","/",sbResponse);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    int statusCode = rest.get_ResponseStatusCode();
    System.out.println("Response status code = " + statusCode);

    CkXml xml = new CkXml();
    xml.LoadSb(sbResponse,true);
    System.out.println(xml.getXml());

    if (statusCode != 200) {
        System.out.println("Failed.  See error information in the XML.");
        return;
        }
  }
}