Java

SNS List Topics

See more Amazon SNS Examples

List the existing SNS topics.

See SNS List Topics for more information.

Chilkat2 Java

import com.chilkatsoft.chilkat2.AuthAws;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Rest;
import com.chilkatsoft.chilkat2.Xml;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Rest rest = new Rest();

        // 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;
        rest.connect("sns.us-west-2.amazonaws.com", port, bTls, bAutoReconnect);

        // Provide AWS credentials for the REST call.
        AuthAws authAws = new AuthAws();
        authAws.setAccessKey("AWS_ACCESS_KEY");
        authAws.setSecretKey("AWS_SECRET_KEY");
        // the region should match our URL above..
        authAws.setRegion("us-west-2");
        authAws.setServiceName("sns");

        rest.setAuthAws(authAws);

        rest.addQueryParam("Action", "ListTopics");

        String responseXml;
        try {
            responseXml = rest.fullRequestNoBody("GET", "/");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

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

        // Examine the successful XML response (shown below)
        Xml xml = new Xml();
        xml.loadXml(responseXml);
        System.out.println(xml.getXml());

        // To iterate over the TopicArn's
        String notUsed = xml.chilkatPath("ListTopicsResult|Topics|$");
        int i = 0;
        int numTopics = xml.getNumChildren();
        while (i < numTopics) {
            xml.getChild2(i);
            System.out.println(xml.getChildContent("TopicArn"));
            xml.getParent2();
            i = i + 1;
        }

        xml.getRoot2();

        // A sample successful response:
        // <?xml version="1.0" encoding="utf-8" ?>
        // <ListTopicsResponse xmlns="http://sns.amazonaws.com/doc/2010-03-31/">
        //     <ListTopicsResult>
        //         <Topics>
        //             <member>
        //                 <TopicArn>arn:aws:sns:us-west-2:957491831129:chilkat</TopicArn>
        //             </member>
        //             <member>
        //                 <TopicArn>arn:aws:sns:us-west-2:957491831129:chilkat123</TopicArn>
        //             </member>
        //             <member>
        //                 <TopicArn>arn:aws:sns:us-west-2:957491831129:chilkatses</TopicArn>
        //             </member>
        //         </Topics>
        //     </ListTopicsResult>
        //     <ResponseMetadata>
        //         <RequestId>54514f94-b07d-5f0b-9c8a-1ff85ff4ac65</RequestId>
        //     </ResponseMetadata>
        // </ListTopicsResponse>
    }
}