Swift
SQS Receive Message

Retrieves one or more messages from an Amazon SQS queue, with a maximum limit of 10 messages, from the specified queue.
See SQS ReceiveMessage or detailed information.
Chilkat Swift Downloads

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)
    print("\(xml.getXml()!)")
    print("----")

    // 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>
    //             <Attribute>
    //                 <Name>ApproximateFirstReceiveTimestamp</Name>
    //                 <Value>1475013283557</Value>
    //             </Attribute>
    //             <Attribute>
    //                 <Name>ApproximateReceiveCount</Name>
    //                 <Value>4</Value>
    //             </Attribute>
    //             <Attribute>
    //                 <Name>SentTimestamp</Name>
    //                 <Value>1475013283557</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:
    print("Body: \(xml.chilkatPath(cmd: "ReceiveMessageResult|Message|Body|*")!)")
    print("MessageId: \(xml.chilkatPath(cmd: "ReceiveMessageResult|Message|MessageId|*")!)")

    var unused: String? = xml.chilkatPath(cmd: "ReceiveMessageResult|Message[0]|Attribute|$")

    var rec: CkoXml? = xml.findNextRecord(tagPath: "Name", contentPattern: "SenderId")
    print("SenderId: \(rec!.getChildContent(tagPath: "Value")!)")
    rec = nil

    rec = xml.findNextRecord(tagPath: "Name", contentPattern: "ApproximateFirstReceiveTimestamp")
    print("ApproximateFirstReceiveTimestamp: \(rec!.getChildContent(tagPath: "Value")!)")
    rec = nil

    rec = xml.findNextRecord(tagPath: "Name", contentPattern: "ApproximateReceiveCount")
    print("ApproximateReceiveCount: \(rec!.getChildContent(tagPath: "Value")!)")
    rec = nil

    rec = xml.findNextRecord(tagPath: "Name", contentPattern: "SentTimestamp")
    print("SentTimestamp: \(rec!.getChildContent(tagPath: "Value")!)")
    rec = nil

    xml.getRoot2()

}