Delphi DLL

SQS List Queues

See more Amazon SQS Examples

Returns a list of your Amazon SQS queues. The maximum number of queues that can be returned is 1000. If you specify a value for the optional QueueNamePrefix query parameter, only queues with a name beginning with the specified value are returned. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, AuthAws, Rest, Xml;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
rest: HCkRest;
bTls: Boolean;
port: Integer;
bAutoReconnect: Boolean;
authAws: HCkAuthAws;
responseXml: PWideChar;
xml: HCkXml;
i: Integer;
numQueues: Integer;

begin
success := False;

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

rest := CkRest_Create();

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

// Provide AWS credentials for the REST call.
authAws := CkAuthAws_Create();
CkAuthAws_putAccessKey(authAws,'AWS_ACCESS_KEY');
CkAuthAws_putSecretKey(authAws,'AWS_SECRET_KEY');
// the region should match our URL above..
CkAuthAws_putRegion(authAws,'us-west-2');
CkAuthAws_putServiceName(authAws,'sqs');

CkRest_SetAuthAws(rest,authAws);

CkRest_AddQueryParam(rest,'Action','ListQueues');
// List only queues having a name starting with "c".
// Comment out this line to list all queues.
CkRest_AddQueryParam(rest,'QueueNamePrefix','c');

responseXml := CkRest__fullRequestNoBody(rest,'GET','/');
if (CkRest_getLastMethodSuccess(rest) <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// A successful response will have a status code equal to 200.
if (CkRest_getResponseStatusCode(rest) <> 200) then
  begin
    Memo1.Lines.Add('response status code = ' + IntToStr(CkRest_getResponseStatusCode(rest)));
    Memo1.Lines.Add('response status text = ' + CkRest__responseStatusText(rest));
    Memo1.Lines.Add('response header: ' + CkRest__responseHeader(rest));
    Memo1.Lines.Add('response body: ' + responseXml);
    Exit;
  end;

// Examine the successful XML response.
xml := CkXml_Create();
CkXml_LoadXml(xml,responseXml);
Memo1.Lines.Add(CkXml__getXml(xml));
Memo1.Lines.Add('----');

// A successful response looks like this:
// <?xml version="1.0" encoding="utf-8" ?>
// <ListQueuesResponse xmlns="http://queue.amazonaws.com/doc/2012-11-05/">
//     <ListQueuesResult>
//         <QueueUrl>https://sqs.us-west-2.amazonaws.com/123491855557/chilkatTest</QueueUrl>
//         <QueueUrl>https://sqs.us-west-2.amazonaws.com/123496666627/chilkatses</QueueUrl>
//     </ListQueuesResult>
//     <ResponseMetadata>
//         <RequestId>77bce138-fbcc-5e42-9ee3-b15c1f7178c2</RequestId>
//     </ResponseMetadata>
// </ListQueuesResponse>

// Get each queue URL..
CkXml_FindChild2(xml,'ListQueuesResult');
i := 0;
numQueues := CkXml_getNumChildren(xml);
while i < numQueues do
  begin
    Memo1.Lines.Add('QueueUrl: ' + CkXml__getChildContentByIndex(xml,i));
    i := i + 1;
  end;

CkXml_GetRoot2(xml);

CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
CkXml_Dispose(xml);

end;