(Delphi ActiveX) Amazon Glacier Remove Tags from Vault

Demonstrates how to remove one or more tags from the set of tags attached to a vault.

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;
json: TChilkatJsonObject;
sbRequestBody: TChilkatStringBuilder;
sbResponseBody: TChilkatStringBuilder;
respStatusCode: Integer;

begin
// 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 in the desired region.
bTls := 1;
port := 443;
bAutoReconnect := 1;
success := rest.Connect('glacier.us-west-2.amazonaws.com',port,bTls,bAutoReconnect);

// Provide AWS credentials.
authAws := TChilkatAuthAws.Create(Self);
authAws.AccessKey := 'AWS_ACCESS_KEY';
authAws.SecretKey := 'AWS_SECRET_KEY';
authAws.ServiceName := 'glacier';
authAws.Region := 'us-west-2';

success := rest.SetAuthAws(authAws.ControlInterface);

// --------------------------------------------------------------------------
// Note: The above REST connection and setup of the AWS credentials
// can be done once.  After connecting, any number of REST calls can be made.
// The "auto reconnect" property passed to rest.Connect indicates that if
// the connection is lost, a REST method call will automatically reconnect
// if needed.
// --------------------------------------------------------------------------

// 
// For more information, see Glacier Remove Tags from Vault Reference Documentation
// 
rest.AddHeader('x-amz-glacier-version','2012-06-01');

// Create the JSON indicating the tags to be removed:
// Use this online tool to generate the code from sample JSON: 
// Generate Code to Create JSON

// {
//    "TagKeys": [
//       "tagName1",
//       "tagName2"
//    ]
// }

json := TChilkatJsonObject.Create(Self);
json.UpdateString('TagKeys[0]','tagName1');
json.UpdateString('TagKeys[1]','tagName2');
// ...
// ...

sbRequestBody := TChilkatStringBuilder.Create(Self);
json.EmitSb(sbRequestBody.ControlInterface);

// Add tags to the vault named "chilkat"
sbResponseBody := TChilkatStringBuilder.Create(Self);
success := rest.FullRequestSb('POST','/AWS_ACCOUNT_ID/vaults/chilkat/tags?operation=remove',sbRequestBody.ControlInterface,sbResponseBody.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

respStatusCode := rest.ResponseStatusCode;
if (respStatusCode >= 400) then
  begin
    Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(rest.ResponseHeader);
    Memo1.Lines.Add('Response Body:');
    Memo1.Lines.Add(sbResponseBody.GetAsString());
    Exit;
  end;

// Success is indicated by a 204 response status with an empty response body.
Memo1.Lines.Add('response status code = ' + IntToStr(respStatusCode));
end;