(Delphi DLL) Egypt ITIDA Generate eReceipt UUID

See more Egypt ITIDA Examples

Note: This example requires Chilkat v9.5.0.92 or greater.

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, StringBuilder;

...

procedure TForm1.Button1Click(Sender: TObject);
var
sb: HCkStringBuilder;
success: Boolean;
uuid: PWideChar;

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

// Note: This example requires Chilkat v9.5.0.92 or greater.
// (In v9.5.0.92, the "itida" encoding was added to StringBuilder's Encode method.)
sb := CkStringBuilder_Create();

// Load the eReceipt JSON into a StringBuilder object.
success := CkStringBuilder_LoadFile(sb,'qa_data/itida/EReceipt_ex.json','utf-8');
if (success = False) then
  begin
    Memo1.Lines.Add('Failed to load input file.');
    Exit;
  end;

// Convert the contents of sb to the ITIDA canonical form.
// Always pass utf-8 for the 2nd arg.
CkStringBuilder_Encode(sb,'itida','utf-8');

// Get the lowercase hex encoded SHA256 hash of the canonicalized JSON
// (always use utf-8)
uuid := CkStringBuilder__getHash(sb,'sha256','hex_lower','utf-8');
Memo1.Lines.Add('eInvoicing UUID = ' + uuid);

CkStringBuilder_Dispose(sb);

end;