Delphi ActiveX

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 ActiveX

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
rest: TChilkatRest;
bTls: Integer;
port: Integer;
bAutoReconnect: Integer;
authAws: TChilkatAuthAws;
responseXml: WideString;
xml: TChilkatXml;
i: Integer;
numQueues: Integer;

begin
success := 0;

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

rest := TChilkatRest.Create(Self);

// Connect to the Amazon AWS REST server.
// such as https://sqs.us-west-2.amazonaws.com/
bTls := 1;
port := 443;
bAutoReconnect := 1;
success := rest.Connect('sqs.us-west-2.amazonaws.com',port,bTls,bAutoReconnect);

// Provide AWS credentials for the REST call.
authAws := TChilkatAuthAws.Create(Self);
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(authAws.ControlInterface);

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

responseXml := rest.FullRequestNoBody('GET','/');
if (rest.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

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

// Examine the successful XML response.
xml := TChilkatXml.Create(Self);
xml.LoadXml(responseXml);
Memo1.Lines.Add(xml.GetXml());
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..
xml.FindChild2('ListQueuesResult');
i := 0;
numQueues := xml.NumChildren;
while i < numQueues do
  begin
    Memo1.Lines.Add('QueueUrl: ' + xml.GetChildContentByIndex(i));
    i := i + 1;
  end;

xml.GetRoot2();
end;