Java
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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Java
import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

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

    CkRest rest = new CkRest();

    // Connect to the Amazon AWS REST server.
    // such as https://sqs.us-west-2.amazonaws.com/
    boolean bTls = true;
    int port = 443;
    boolean bAutoReconnect = true;
    success = rest.Connect("sqs.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials for the REST call.
    CkAuthAws authAws = new CkAuthAws();
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_SecretKey("AWS_SECRET_KEY");
    // the region should match our URL above..
    authAws.put_Region("us-west-2");
    authAws.put_ServiceName("sqs");

    rest.SetAuthAws(authAws);

    rest.AddQueryParam("Action","ReceiveMessage");
    rest.AddQueryParam("MaxNumberOfMessages","5");
    rest.AddQueryParam("VisibilityTimeout","15");
    rest.AddQueryParam("AttributeName","All");
    rest.AddQueryParam("MessageAttributeName","All");

    // Use the actual path part of your SQS queue URL here:
    String responseXml = rest.fullRequestNoBody("GET","/123456789123/chilkatTest");
    if (rest.get_LastMethodSuccess() != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    // A successful response will have a status code equal to 200.
    if (rest.get_ResponseStatusCode() != 200) {
        System.out.println("response status code = " + rest.get_ResponseStatusCode());
        System.out.println("response status text = " + rest.responseStatusText());
        System.out.println("response header: " + rest.responseHeader());
        System.out.println("response body: " + responseXml);
        return;
        }

    // Examine the successful XML response.
    CkXml xml = new CkXml();
    xml.LoadXml(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:
    String receiptHandle = xml.chilkatPath("ReceiveMessageResult|Message|ReceiptHandle|*");
    System.out.println("ReceiptHandle = " + receiptHandle);

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

    rest.AddQueryParam("Action","DeleteMessage");
    rest.AddQueryParam("ReceiptHandle",receiptHandle);

    // Use the actual path part of your SQS queue URL here:
    responseXml = rest.fullRequestNoBody("GET","/123456789123/chilkatTest");
    if (rest.get_LastMethodSuccess() != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    // A successful response will have a status code equal to 200.
    if (rest.get_ResponseStatusCode() != 200) {
        System.out.println("response status code = " + rest.get_ResponseStatusCode());
        System.out.println("response status text = " + rest.responseStatusText());
        System.out.println("response header: " + rest.responseHeader());
        System.out.println("response body: " + responseXml);
        return;
        }

    // Examine the successful XML response.
    xml.LoadXml(responseXml);
    System.out.println(xml.getXml());

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