(Unicode C++) SNS List Topics

List the existing SNS topics.

See SNS List Topics for more information.

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#include <CkRestW.h>
#include <CkAuthAwsW.h>
#include <CkXmlW.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.
    // such as https://sns.us-west-2.amazonaws.com/
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    bool success = rest.Connect(L"sns.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

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

    rest.SetAuthAws(authAws);

    rest.AddQueryParam(L"Action",L"ListTopics");

    const wchar_t *responseXml = rest.fullRequestNoBody(L"GET",L"/");
    if (rest.get_LastMethodSuccess() != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

    // A successful response will have a status code equal to 200.
    if (rest.get_ResponseStatusCode() != 200) {
        wprintf(L"response status code = %d\n",rest.get_ResponseStatusCode());
        wprintf(L"response status text = %s\n",rest.responseStatusText());
        wprintf(L"response header: %s\n",rest.responseHeader());
        wprintf(L"response body: %s\n",responseXml);
        return;
    }

    // Examine the successful XML response (shown below)
    CkXmlW xml;
    xml.LoadXml(responseXml);
    wprintf(L"%s\n",xml.getXml());

    // To iterate over the TopicArn's
    const wchar_t *notUsed = xml.chilkatPath(L"ListTopicsResult|Topics|$");
    int i = 0;
    int numTopics = xml.get_NumChildren();
    while (i < numTopics) {
        xml.GetChild2(i);
        wprintf(L"%s\n",xml.getChildContent(L"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>
    }