Pascal (Lazarus/Delphi)

Extract and Save PDF from SOAP XML

See more XML Examples

Demonstrates how to extract and save PDF file that is embedded in SOAP XML (or any XML). 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.Xml;

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

procedure RunDemo;
var
  success: Boolean;
  xml: TXml;
  pdfElement: TXml;

begin
  success := False;

  xml := TXml.Create;

  success := xml.LoadXmlFile('qa_data/soap/soapWithPdf.xml');
  if (success <> True) then
    begin
      WriteLn(xml.LastErrorText);
      Exit;
    end;

  //  The XML we loaded looks like this:

  //  <?xml version="1.0" encoding="utf-8" ?>
  //  <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
  //      <s:Body>
  //          <ObtenerPDFResponse xmlns="http://xyz.org/">
  //              <ObtenerPDFResult xmlns:a="http://schemas.xyz.org/something" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  //                  <a:CBB i:nil="true" />
  //                  <a:CodigoConfirmacion i:nil="true" />
  //                  <a:ErrorDetallado />
  //                  <a:ErrorGeneral i:nil="true" />
  //                  <a:FechaGenerada i:nil="true" />
  //                  <a:FolioGenerado i:nil="true" />
  //                  <a:OperacionExitosa>true</a:OperacionExitosa>
  //                  <a:PDF>JVBERi0xLjQKJe...</a:PDF>
  //                  <a:XML i:nil="true" />
  //              </ObtenerPDFResult>
  //          </ObtenerPDFResponse>
  //      </s:Body>
  //  </s:Envelope>

  pdfElement := xml.FindChild('s:Body|ObtenerPDFResponse|ObtenerPDFResult|a:PDF');
  if (xml.LastMethodSuccess <> True) then
    begin
      WriteLn('Did not find the PDF element at the expected location.');
      Exit;
    end;

  success := pdfElement.SaveBinaryContent('qa_output/out.pdf',False,False,'');
  if (success <> True) then
    begin
      WriteLn(xml.LastErrorText);
      Exit;
    end;

  WriteLn('Successfully extracted and saved the PDF.');


  xml.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.