(Delphi DLL) ITIDA Create Canonical JSON

See more Egypt ITIDA Examples

Demonstrates creating the canonical (ITIDA) version of a JSON document. The document in the example is the one at https://sdk.invoicing.eta.gov.eg/files/one-doc.json

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

For more information, see https://sdk.invoicing.eta.gov.eg/signature-creation/

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;
canonical: PWideChar;
sbExpected: HCkStringBuilder;

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();

// This is the file at https://sdk.invoicing.eta.gov.eg/files/one-doc.json
success := CkStringBuilder_LoadFile(sb,'qa_data/itida/sdk.invoicing.eta.gov.eg/files/one-doc.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');

canonical := CkStringBuilder__getAsString(sb);

Memo1.Lines.Add(canonical);

// Output: 
// "SomeValue""DELIVERY""APPROACH""SomeValue""PACKAGING""SomeValue""DATEVALIDITY""2020-09-28T09:30:10Z"........."TOTALAMOUNT""5191.50""EXTRADISCOUNTAMOUNT""5.00""TOTALITEMSDISCOUNTAMOUNT""14.00"

// Let's verify we got the correct result.
sbExpected := CkStringBuilder_Create();
success := CkStringBuilder_LoadFile(sbExpected,'qa_data/itida/sdk.invoicing.eta.gov.eg/files/one-doc-serialized.json.txt','utf-8');
if (success = False) then
  begin
    Memo1.Lines.Add('Failed to expected output file.');
    Exit;
  end;

// Compare our computed canonical string with the expected result.
if (CkStringBuilder_ContentsEqualSb(sb,sbExpected,True) = True) then
  begin
    Memo1.Lines.Add('The computed canonical result is correct.');
  end
else
  begin
    Memo1.Lines.Add('The computed canonical result is NOT correct.');
  end;

CkStringBuilder_Dispose(sb);
CkStringBuilder_Dispose(sbExpected);

end;