Pascal (Lazarus/Delphi)

AWS Security Token Service (STS) GetSessionToken

See more AWS Security Token Service Examples

Returns a set of temporary credentials for an AWS account or IAM user. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.AuthAws,
  Chilkat.Rest,
  Chilkat.Xml;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  rest: TRest;
  bTls: Boolean;
  port: Integer;
  bAutoReconnect: Boolean;
  authAws: TAuthAws;
  responseXml: string;
  xml: TXml;
  GetSessionTokenResponse_xmlns: string;
  AccessKeyId: string;
  SecretAccessKey: string;
  SessionToken: string;
  Expiration: string;
  RequestId: string;

begin
  success := False;

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

  rest := TRest.Create;

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

  //  Provide AWS credentials for the REST call.
  authAws := TAuthAws.Create;
  authAws.AccessKey := 'AWS_ACCESS_KEY';
  authAws.SecretKey := 'AWS_SECRET_KEY';
  //  the region should match our URL above..
  //  See https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html
  authAws.Region := 'us-west-2';
  authAws.ServiceName := 'sts';

  rest.SetAuthAws(authAws);

  rest.AddQueryParam('Version','2011-06-15');
  rest.AddQueryParam('Action','GetSessionToken');
  rest.AddQueryParam('DurationSeconds','3600');

  responseXml := rest.FullRequestNoBody('GET','/');
  if (rest.LastMethodSuccess <> True) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;

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

  //  Examine the successful XML response (shown below)
  xml := TXml.Create;
  xml.LoadXml(responseXml);
  WriteLn(xml.GetXml());

  //  Sample response:

  //  <?xml version="1.0" encoding="utf-8"?>
  //  <GetSessionTokenResponse xmlns="https://sts.amazonaws.com/doc/2011-06-15/">
  //      <GetSessionTokenResult>
  //          <Credentials>
  //              <AccessKeyId>AS........T4N</AccessKeyId>
  //              <SecretAccessKey>05W........ARPMr</SecretAccessKey>
  //              <SessionToken>IQoJb3J........llpIMI=</SessionToken>
  //              <Expiration>2022-09-07T00:22:51Z</Expiration>
  //          </Credentials>
  //      </GetSessionTokenResult>
  //      <ResponseMetadata>
  //          <RequestId>8bad22cc-1c55-4265-a010-45d139359404</RequestId>
  //      </ResponseMetadata>
  //  </GetSessionTokenResponse>

  //  Sample parse code:
  GetSessionTokenResponse_xmlns := xml.GetAttrValue('xmlns');
  AccessKeyId := xml.GetChildContent('GetSessionTokenResult|Credentials|AccessKeyId');
  SecretAccessKey := xml.GetChildContent('GetSessionTokenResult|Credentials|SecretAccessKey');
  SessionToken := xml.GetChildContent('GetSessionTokenResult|Credentials|SessionToken');
  Expiration := xml.GetChildContent('GetSessionTokenResult|Credentials|Expiration');
  RequestId := xml.GetChildContent('ResponseMetadata|RequestId');

  //  Save the session token XML to a file for use by another Chilkat example..
  success := xml.SaveXml('qa_data/tokens/aws_session_token.xml');


  rest.Free;
  authAws.Free;
  xml.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.