(PureBasic) SNS List Topics

List the existing SNS topics.

See SNS List Topics for more information.

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkXml.pb"
IncludeFile "CkAuthAws.pb"
IncludeFile "CkRest.pb"

Procedure ChilkatExample()

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

    rest.i = CkRest::ckCreate()
    If rest.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Connect to the Amazon AWS REST server.
    ; such as https://sns.us-west-2.amazonaws.com/
    bTls.i = 1
    port.i = 443
    bAutoReconnect.i = 1
    success.i = CkRest::ckConnect(rest,"sns.us-west-2.amazonaws.com",port,bTls,bAutoReconnect)

    ; Provide AWS credentials for the REST call.
    authAws.i = CkAuthAws::ckCreate()
    If authAws.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkAuthAws::setCkAccessKey(authAws, "AWS_ACCESS_KEY")
    CkAuthAws::setCkSecretKey(authAws, "AWS_SECRET_KEY")
    ; the region should match our URL above..
    CkAuthAws::setCkRegion(authAws, "us-west-2")
    CkAuthAws::setCkServiceName(authAws, "sns")

    CkRest::ckSetAuthAws(rest,authAws)

    CkRest::ckAddQueryParam(rest,"Action","ListTopics")

    responseXml.s = CkRest::ckFullRequestNoBody(rest,"GET","/")
    If CkRest::ckLastMethodSuccess(rest) <> 1
        Debug CkRest::ckLastErrorText(rest)
        CkRest::ckDispose(rest)
        CkAuthAws::ckDispose(authAws)
        ProcedureReturn
    EndIf

    ; A successful response will have a status code equal to 200.
    If CkRest::ckResponseStatusCode(rest) <> 200
        Debug "response status code = " + Str(CkRest::ckResponseStatusCode(rest))
        Debug "response status text = " + CkRest::ckResponseStatusText(rest)
        Debug "response header: " + CkRest::ckResponseHeader(rest)
        Debug "response body: " + responseXml
        CkRest::ckDispose(rest)
        CkAuthAws::ckDispose(authAws)
        ProcedureReturn
    EndIf

    ; Examine the successful XML response (shown below)
    xml.i = CkXml::ckCreate()
    If xml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXml::ckLoadXml(xml,responseXml)
    Debug CkXml::ckGetXml(xml)

    ; To iterate over the TopicArn's
    notUsed.s = CkXml::ckChilkatPath(xml,"ListTopicsResult|Topics|$")
    i.i = 0
    numTopics.i = CkXml::ckNumChildren(xml)
    While i < numTopics
        CkXml::ckGetChild2(xml,i)
        Debug CkXml::ckGetChildContent(xml,"TopicArn")
        CkXml::ckGetParent2(xml)
        i = i + 1
    Wend
    CkXml::ckGetRoot2(xml)

    ; 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>


    CkRest::ckDispose(rest)
    CkAuthAws::ckDispose(authAws)
    CkXml::ckDispose(xml)


    ProcedureReturn
EndProcedure