(Swift 2) SNS Subscribe Email Address

Subscribe an email address to an SNS topic.

See SNS Subscribe for more information.

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func chilkatTest() {
    // 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
    var success: Bool = rest.Connect("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(authAws)

    rest.AddQueryParam("Action", value: "Subscribe")
    rest.AddQueryParam("Endpoint", value: "somebody@some-email-address.com")
    rest.AddQueryParam("Protocol", value: "email")
    rest.AddQueryParam("TopicArn", value: "arn:aws:sns:us-west-2:957491831129:chilkat")

    var responseXml: String? = rest.FullRequestNoBody("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.
    let xml = CkoXml()
    xml.LoadXml(responseXml)
    print("\(xml.GetXml())")

    // To get the SubscriptionArn (which in this case is "pending confirmation")
    print("SubscriptionArn: \(xml.ChilkatPath("SubscribeResult|SubscriptionArn|*"))")

    // A sample successful response:
    // <?xml version="1.0" encoding="utf-8" ?>
    // <SubscribeResponse xmlns="http://sns.amazonaws.com/doc/2010-03-31/">
    //     <SubscribeResult>
    //         <SubscriptionArn>pending confirmation</SubscriptionArn>
    //     </SubscribeResult>
    //     <ResponseMetadata>
    //         <RequestId>c5490a81-973b-5fa6-93dc-5bed689c212f</RequestId>
    //     </ResponseMetadata>
    // </SubscribeResponse>

}