(Lianja) SNS List Topics

List the existing SNS topics.

See SNS List Topics for more information.

Chilkat Lianja Extension Download Chilkat Lianja Extension

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

loRest = createobject("CkRest")

// Connect to the Amazon AWS REST server.
// such as https://sns.us-west-2.amazonaws.com/
llBTls = .T.
lnPort = 443
llBAutoReconnect = .T.
llSuccess = loRest.Connect("sns.us-west-2.amazonaws.com",lnPort,llBTls,llBAutoReconnect)

// Provide AWS credentials for the REST call.
loAuthAws = createobject("CkAuthAws")
loAuthAws.AccessKey = "AWS_ACCESS_KEY"
loAuthAws.SecretKey = "AWS_SECRET_KEY"
// the region should match our URL above..
loAuthAws.Region = "us-west-2"
loAuthAws.ServiceName = "sns"

loRest.SetAuthAws(loAuthAws)

loRest.AddQueryParam("Action","ListTopics")

lcResponseXml = loRest.FullRequestNoBody("GET","/")
if (loRest.LastMethodSuccess <> .T.) then
    ? loRest.LastErrorText
    release loRest
    release loAuthAws
    return
endif

// A successful response will have a status code equal to 200.
if (loRest.ResponseStatusCode <> 200) then
    ? "response status code = " + str(loRest.ResponseStatusCode)
    ? "response status text = " + loRest.ResponseStatusText
    ? "response header: " + loRest.ResponseHeader
    ? "response body: " + lcResponseXml
    release loRest
    release loAuthAws
    return
endif

// Examine the successful XML response (shown below)
loXml = createobject("CkXml")
loXml.LoadXml(lcResponseXml)
? loXml.GetXml()

// To iterate over the TopicArn's
lcNotUsed = loXml.ChilkatPath("ListTopicsResult|Topics|$")
i = 0
lnNumTopics = loXml.NumChildren
do while i < lnNumTopics
    loXml.GetChild2(i)
    ? loXml.GetChildContent("TopicArn")
    loXml.GetParent2()
    i = i + 1
enddo
loXml.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>


release loRest
release loAuthAws
release loXml