Swift

SNS List Topics

See more Amazon SNS Examples

List the existing SNS topics.

See SNS List Topics for more information.

Swift

func chilkatTest() {
    var success: Bool = false

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

    let rest = CkoRest()!

    // Connect to the Amazon AWS REST server.
    // such as https://sns.us-west-2.amazonaws.com/
    var bTls: Bool = true
    var port: Int = 443
    var bAutoReconnect: Bool = true
    success = rest.connect(hostname: "sns.us-west-2.amazonaws.com", port: port, tls: bTls, autoReconnect: bAutoReconnect)

    // Provide AWS credentials for the REST call.
    let authAws = CkoAuthAws()!
    authAws.accessKey = "AWS_ACCESS_KEY"
    authAws.secretKey = "AWS_SECRET_KEY"
    // the region should match our URL above..
    authAws.region = "us-west-2"
    authAws.serviceName = "sns"

    rest.setAuthAws(authProvider: authAws)

    rest.addQueryParam(name: "Action", value: "ListTopics")

    var responseXml: String? = rest.fullRequestNoBody(httpVerb: "GET", uriPath: "/")
    if rest.lastMethodSuccess != true {
        print("\(rest.lastErrorText!)")
        return
    }

    // A successful response will have a status code equal to 200.
    if rest.responseStatusCode.intValue != 200 {
        print("response status code = \(rest.responseStatusCode.intValue)")
        print("response status text = \(rest.responseStatusText!)")
        print("response header: \(rest.responseHeader!)")
        print("response body: \(responseXml!)")
        return
    }

    // Examine the successful XML response (shown below)
    let xml = CkoXml()!
    xml.load(xmlData: responseXml)
    print("\(xml.getXml()!)")

    // To iterate over the TopicArn's
    var notUsed: String? = xml.chilkatPath(cmd: "ListTopicsResult|Topics|$")
    var i: Int = 0
    var numTopics: Int = xml.numChildren.intValue
    while i < numTopics {
        xml.getChild2(index: i)
        print("\(xml.getChildContent(tagPath: "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>

}