(Java) SNS Publish (Send Message)

Sends a message to all of a topic's subscribed endpoints.

See SNS Publish for more information.

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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.

    CkRest rest = new CkRest();

    // Connect to the Amazon AWS REST server.
    // such as https://sns.us-west-2.amazonaws.com/
    boolean bTls = true;
    int port = 443;
    boolean bAutoReconnect = true;
    boolean success = rest.Connect("sns.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials for the REST call.
    CkAuthAws authAws = new CkAuthAws();
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_SecretKey("AWS_SECRET_KEY");
    // the region should match our URL above..
    authAws.put_Region("us-west-2");
    authAws.put_ServiceName("sns");

    rest.SetAuthAws(authAws);

    rest.AddQueryParam("Action","Publish");
    rest.AddQueryParam("TopicArn","arn:aws:sns:us-west-2:957491831129:chilkat");
    // For subscribed email addresses, this is the subject of the email.
    rest.AddQueryParam("Subject","Test Message from Amazon SNS");
    rest.AddQueryParam("Message","This is a test message from Amazon SNS");

    String responseXml = rest.fullRequestNoBody("GET","/");
    if (rest.get_LastMethodSuccess() != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    // A successful response will have a status code equal to 200.
    if (rest.get_ResponseStatusCode() != 200) {
        System.out.println("response status code = " + rest.get_ResponseStatusCode());
        System.out.println("response status text = " + rest.responseStatusText());
        System.out.println("response header: " + rest.responseHeader());
        System.out.println("response body: " + responseXml);
        return;
        }

    // Examine the successful XML response.
    CkXml xml = new CkXml();
    xml.LoadXml(responseXml);
    System.out.println(xml.getXml());

    // To get the MessageId
    System.out.println("MessageId: " + xml.chilkatPath("PublishResult|MessageId|*"));

    // A sample successful response:
    // <?xml version="1.0" encoding="utf-8" ?>
    // <PublishResponse xmlns="http://sns.amazonaws.com/doc/2010-03-31/">
    //     <PublishResult>
    //         <MessageId>5e135f2e-898d-5006-940a-0f43829c764b</MessageId>
    //     </PublishResult>
    //     <ResponseMetadata>
    //         <RequestId>9adbf47d-9e07-5981-bb7f-a4609a167fcc</RequestId>
    //     </ResponseMetadata>
    // </PublishResponse>
  }
}