(Delphi DLL) Amazon Glacier List Vaults

Demonstrates how to list the glacier vaults in a given region.

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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, AuthAws, Rest, StringBuilder, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
rest: HCkRest;
bTls: Boolean;
port: Integer;
bAutoReconnect: Boolean;
success: Boolean;
authAws: HCkAuthAws;
sbResponseBody: HCkStringBuilder;
respStatusCode: Integer;
json: HCkJsonObject;
Marker: PWideChar;
i: Integer;
count_i: Integer;
CreationDate: PWideChar;
LastInventoryDate: PWideChar;
NumberOfArchives: Integer;
SizeInBytes: Integer;
VaultARN: PWideChar;
VaultName: PWideChar;

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

rest := CkRest_Create();

// Connect to the Amazon AWS REST server in the desired region.
bTls := True;
port := 443;
bAutoReconnect := True;
success := CkRest_Connect(rest,'glacier.us-west-2.amazonaws.com',port,bTls,bAutoReconnect);

// Provide AWS credentials.
authAws := CkAuthAws_Create();
CkAuthAws_putAccessKey(authAws,'AWS_ACCESS_KEY');
CkAuthAws_putSecretKey(authAws,'AWS_SECRET_KEY');
CkAuthAws_putServiceName(authAws,'glacier');
CkAuthAws_putRegion(authAws,'us-west-2');

success := CkRest_SetAuthAws(rest,authAws);

// --------------------------------------------------------------------------
// 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 List Vaults Reference Documentation
// 
CkRest_AddHeader(rest,'x-amz-glacier-version','2012-06-01');

// Get the glacier vaults in my account's us-west-2 region.
sbResponseBody := CkStringBuilder_Create();
success := CkRest_FullRequestNoBodySb(rest,'GET','/AWS_ACCOUNT_ID/vaults',sbResponseBody);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

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

// Success is indicated by a 200 response status with an empty response body.
Memo1.Lines.Add('response status code = ' + IntToStr(respStatusCode));

json := CkJsonObject_Create();
CkJsonObject_LoadSb(json,sbResponseBody);
CkJsonObject_putEmitCompact(json,False);

Memo1.Lines.Add(CkJsonObject__emit(json));

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

Marker := CkJsonObject__stringOf(json,'Marker');
i := 0;
count_i := CkJsonObject_SizeOfArray(json,'VaultList');
while i < count_i do
  begin
    CkJsonObject_putI(json,i);
    CreationDate := CkJsonObject__stringOf(json,'VaultList[i].CreationDate');
    LastInventoryDate := CkJsonObject__stringOf(json,'VaultList[i].LastInventoryDate');
    NumberOfArchives := CkJsonObject_IntOf(json,'VaultList[i].NumberOfArchives');
    SizeInBytes := CkJsonObject_IntOf(json,'VaultList[i].SizeInBytes');
    VaultARN := CkJsonObject__stringOf(json,'VaultList[i].VaultARN');
    VaultName := CkJsonObject__stringOf(json,'VaultList[i].VaultName');
    i := i + 1;
  end;

// Sample response
// 
// {
//   "Marker": null,
//   "VaultList": [
//     {
//       "CreationDate": "2019-04-05T19:10:28.428Z",
//       "LastInventoryDate": null,
//       "NumberOfArchives": 0,
//       "SizeInBytes": 0,
//       "VaultARN": "arn:aws:glacier:us-west-2:954491834127:vaults/chilkat",
//       "VaultName": "chilkat"
//     },
//     {
//       "CreationDate": "2019-04-05T19:00:21.768Z",
//       "LastInventoryDate": null,
//       "NumberOfArchives": 0,
//       "SizeInBytes": 0,
//       "VaultARN": "arn:aws:glacier:us-west-2:954491834127:vaults/ocean",
//       "VaultName": "ocean"
//     }
//   ]
// }
// 

CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(json);

end;