Xbase++

SNS List Topics

See more Amazon SNS Examples

List the existing SNS topics.

See SNS List Topics for more information.

Xbase++

LOCAL nSuccess
LOCAL oRest
LOCAL nBTls
LOCAL nPort
LOCAL nBAutoReconnect
LOCAL oAuthAws
LOCAL cResponseXml
LOCAL oXml
LOCAL cNotUsed
LOCAL i
LOCAL nNumTopics

nSuccess := 0

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

oRest := CreateObject("Chilkat.Rest")

//  Connect to the Amazon AWS REST server.
//  such as https://sns.us-west-2.amazonaws.com/
nBTls := 1
nPort := 443
nBAutoReconnect := 1
nSuccess := oRest:Connect("sns.us-west-2.amazonaws.com", nPort, nBTls, nBAutoReconnect)

//  Provide AWS credentials for the REST call.
oAuthAws := CreateObject("Chilkat.AuthAws")
oAuthAws:AccessKey := "AWS_ACCESS_KEY"
oAuthAws:SecretKey := "AWS_SECRET_KEY"
//  the region should match our URL above..
oAuthAws:Region := "us-west-2"
oAuthAws:ServiceName := "sns"

oRest:SetAuthAws(oAuthAws)

oRest:AddQueryParam("Action", "ListTopics")

cResponseXml := oRest:FullRequestNoBody("GET", "/")
IF (oRest:LastMethodSuccess != 1)
    ? oRest:LastErrorText
    oRest:destroy()
    oAuthAws:destroy()
    RETURN
ENDIF

//  A successful response will have a status code equal to 200.
IF (oRest:ResponseStatusCode != 200)
    ? "response status code = " + Str(oRest:ResponseStatusCode)
    ? "response status text = " + oRest:ResponseStatusText
    ? "response header: " + oRest:ResponseHeader
    ? "response body: " + cResponseXml
    oRest:destroy()
    oAuthAws:destroy()
    RETURN
ENDIF

//  Examine the successful XML response (shown below)
oXml := CreateObject("Chilkat.Xml")
oXml:LoadXml(cResponseXml)
? oXml:GetXml()

//  To iterate over the TopicArn's
cNotUsed := oXml:ChilkatPath("ListTopicsResult|Topics|$")
i := 0
nNumTopics := oXml:NumChildren
DO WHILE i < nNumTopics
    oXml:GetChild2(i)
    ? oXml:GetChildContent("TopicArn")
    oXml:GetParent2()
    i := i + 1
ENDDO
oXml: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>

oRest:destroy()
oAuthAws:destroy()
oXml:destroy()