Swift
SQS Delete Message

Deletes a message from an SQS queue. You specify the message by using the message's receipt handle and not the message ID you received when you sent the message. This example will first receive a message, and then use the receipt handle to delete it.
See SQS DeleteMessage or detailed information.
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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://sqs.us-west-2.amazonaws.com/
    var bTls: Bool = true
    var port: Int = 443
    var bAutoReconnect: Bool = true
    success = rest.connect(hostname: "sqs.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 = "sqs"

    rest.setAuthAws(authProvider: authAws)

    rest.addQueryParam(name: "Action", value: "ReceiveMessage")
    rest.addQueryParam(name: "MaxNumberOfMessages", value: "5")
    rest.addQueryParam(name: "VisibilityTimeout", value: "15")
    rest.addQueryParam(name: "AttributeName", value: "All")
    rest.addQueryParam(name: "MessageAttributeName", value: "All")

    // Use the actual path part of your SQS queue URL here:
    var responseXml: String? = rest.fullRequestNoBody(httpVerb: "GET", uriPath: "/123456789123/chilkatTest")
    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.load(xmlData: responseXml)

    // A successful response looks like this:
    // <?xml version="1.0" encoding="utf-8" ?>
    // <ReceiveMessageResponse xmlns="http://queue.amazonaws.com/doc/2012-11-05/">
    //     <ReceiveMessageResult>
    //         <Message>
    //             <Body>this is a test</Body>
    //             <MD5OfBody>54b0c58c7ce9f2a8b551351102ee0938</MD5OfBody>
    //             <ReceiptHandle>AQEBMyLof...UbKBTvHtEg==</ReceiptHandle>
    //             <Attribute>
    //                 <Name>SenderId</Name>
    //                 <Value>957491831129</Value>
    //             </Attribute>
    // ...
    // ...
    //             <MessageId>52882c65-5e21-4450-9024-93a3b01e61d3</MessageId>
    //             <MD5OfMessageAttributes>2ff68603f4239272bd03f543254ed040</MD5OfMessageAttributes>
    //         </Message>
    //     </ReceiveMessageResult>
    //     <ResponseMetadata>
    //         <RequestId>05ba5c92-80ee-5f87-be76-0cf67b7475d6</RequestId>
    //     </ResponseMetadata>
    // </ReceiveMessageResponse>

    // Get some values from the XML:
    var receiptHandle: String? = xml.chilkatPath(cmd: "ReceiveMessageResult|Message|ReceiptHandle|*")
    print("ReceiptHandle = \(receiptHandle!)")

    // Now use the receipt handle to delete the message.
    // Use the same connection (or automatically reconnect if needed)
    rest.clearAllQueryParams()

    rest.addQueryParam(name: "Action", value: "DeleteMessage")
    rest.addQueryParam(name: "ReceiptHandle", value: receiptHandle)

    // Use the actual path part of your SQS queue URL here:
    responseXml = rest.fullRequestNoBody(httpVerb: "GET", uriPath: "/123456789123/chilkatTest")
    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.
    xml.load(xmlData: responseXml)
    print("\(xml.getXml()!)")

    // A successful DeleteMessage response looks like this:
    // <DeleteMessageResponse>
    //     <ResponseMetadata>
    //         <RequestId>
    //             b5293cb5-d306-4a17-9048-b263635abe42
    //         </RequestId>
    //     </ResponseMetadata>
    // </DeleteMessageResponse>

}