(Delphi ActiveX) S3 Find Bucket Region

Demonstrates how to find out the region of an S3 bucket.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

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
rest: TChilkatRest;
bTls: Integer;
port: Integer;
bAutoReconnect: Integer;
success: Integer;
authAws: TChilkatAuthAws;
strResult: WideString;
responseStatusCode: Integer;
xml: TChilkatXml;

begin
// This 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 using the correct region (in this example, "us-west-2")
bTls := 1;
port := 443;
bAutoReconnect := 1;
success := rest.Connect('s3.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';
authAws.ServiceName := 's3';
success := rest.SetAuthAws(authAws.ControlInterface);

// The bucket name we want to know about is set in the HOST header.
// In this example, we want to find the region for the "chilkat.qa" bucket.
rest.Host := 'chilkat.qa.s3.amazonaws.com';

// Send the GET request to query the bucket location.
strResult := rest.FullRequestNoBody('GET','/?location');
if (rest.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

responseStatusCode := rest.ResponseStatusCode;
Memo1.Lines.Add('Response status code = ' + IntToStr(responseStatusCode));
if (responseStatusCode <> 200) then
  begin
    Memo1.Lines.Add(rest.ResponseHeader);
    Memo1.Lines.Add(strResult);
    Memo1.Lines.Add('Failed.');
    Exit;
  end;

Memo1.Lines.Add(strResult);

// The result contains XML like this:
// <?xml version="1.0" encoding="UTF-8"?>
// <LocationConstraint xmlns="http://s3.amazonaws.com/doc/2006-03-01/">us-west-2</LocationConstraint>

// Get the "us-west-2" from the XML
xml := TChilkatXml.Create(Self);
success := xml.LoadXml(strResult);
Memo1.Lines.Add('region = ' + xml.Content);
end;