Lazarus Pascal

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). Lazarus Pascal

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.