Pascal (Lazarus/Delphi)

AWS KMS List Keys

See more AWS KMS Examples

Gets a list of all KMS keys in the caller's AWS account and Region. 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.JsonObject;

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

procedure RunDemo;
var
  success: Boolean;
  rest: TRest;
  bTls: Boolean;
  port: Integer;
  bAutoReconnect: Boolean;
  authAws: TAuthAws;
  strJson: string;
  json: TJsonObject;
  KeyArn: string;
  KeyId: string;
  KeyCount: Integer;
  Truncated: Boolean;
  i: Integer;
  count_i: Integer;

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.
  //  Make sure to use the region that is correct for you.
  //  such as https://kms.us-west-2.amazonaws.com/
  bTls := True;
  port := 443;
  bAutoReconnect := True;
  success := rest.Connect('kms.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..
  authAws.Region := 'us-west-2';
  authAws.ServiceName := 'kms';

  rest.SetAuthAws(authAws);

  rest.AddHeader('X-Amz-Target','TrentService.ListKeys');
  rest.AddHeader('Content-Type','application/x-amz-json-1.1');

  strJson := rest.FullRequestString('POST','/','{}');
  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: ' + strJson);
      Exit;
    end;

  //  Examine the successful JSON response (shown below)
  json := TJsonObject.Create;
  json.Load(strJson);
  json.EmitCompact := False;

  WriteLn(json.Emit());

  //  Sample output:

  //  {
  //    "KeyCount": 4,
  //    "Keys": [
  //      {
  //        "KeyArn": "arn:aws:kms:us-west-2:954491834127:key/082f8520-7afc-4a09-b703-89b7243072e5",
  //        "KeyId": "082f8520-7afc-4a09-b703-89b7243072e5"
  //      },
  //      {
  //        "KeyArn": "arn:aws:kms:us-west-2:954491834127:key/17432483-ff08-4950-93d3-f46ebb5e17d1",
  //        "KeyId": "17432483-ff08-4950-93d3-f46ebb5e17d1"
  //      },
  //      {
  //        "KeyArn": "arn:aws:kms:us-west-2:954491834127:key/1b0e5b3c-0675-4510-adb6-a75b40a93da0",
  //        "KeyId": "1b0e5b3c-0675-4510-adb6-a75b40a93da0"
  //      },
  //      {
  //        "KeyArn": "arn:aws:kms:us-west-2:954491834127:key/265e3993-428b-4581-9466-b1030a53062f",
  //        "KeyId": "265e3993-428b-4581-9466-b1030a53062f"
  //      },
  //    ],
  //    "Truncated": false
  //  }

  //  Use this online tool to generate parsing code from sample JSON: 
  //  Generate Parsing Code from JSON

  KeyCount := json.IntOf('KeyCount');
  Truncated := json.BoolOf('Truncated');
  i := 0;
  count_i := json.SizeOfArray('Keys');
  while i < count_i do
    begin
      json.I := i;
      KeyArn := json.StringOf('Keys[i].KeyArn');
      KeyId := json.StringOf('Keys[i].KeyId');
      i := i + 1;
    end;



  rest.Free;
  authAws.Free;
  json.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.