(Delphi ActiveX) PEPPOL Document Validation

Demonstrates how to call a Web service to validate your PEPPOL documents according to the latest PEPPOL rules. The validation service requires UBL files.

For more information, see https://peppol.helger.com/public/locale-en_US/menuitem-validation-ws2

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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: TChilkatHttp;
sbPeppolInvoiceXml: TChilkatStringBuilder;
success: Integer;
xml: TChilkatXml;
resp: IChilkatHttpResponse;
respXml: TChilkatXml;

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

// --------------------------------------------------------------------------------
// Also see Chilkat's Online WSDL Code Generator
// to generate code and SOAP Request and Response XML for each operation in a WSDL.
// --------------------------------------------------------------------------------

http := TChilkatHttp.Create(Self);

// We are sending the following POST:

// POST /wsdvs HTTP/1.1
// Host: peppol.helger.com
// Content-Type: application/soap+xml; charset=utf-8
// Content-Length: <length>
// 
// <?xml version="1.0"?>
// <S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
// <S:Body>
// <validateRequestInput xmlns="http://peppol.helger.com/ws/documentvalidationservice/201701/" VESID="eu.peppol.bis2:t10:3.3.0" displayLocale="en">
// <XML>...ENTITY_ENCODED_INVOICE_XML_GOES_HERE...</XML>
// </validateRequestInput>
// </S:Body>
// </S:Envelope>

// Build the SOAP XML shown above.
// First load the PEPPOL invoice that will be the data contained in the <XML>...</XML> SOAP element.
// We are using the XML invoice obtained from https://github.com/austriapro/ebinterface-standards/blob/master/schemas/ebInterface5p0/samples/ebinterface_5p0_sample_ecosio.xml
sbPeppolInvoiceXml := TChilkatStringBuilder.Create(Self);
success := sbPeppolInvoiceXml.LoadFile('qa_data/xml/peppol_invoice.xml','utf-8');

xml := TChilkatXml.Create(Self);
xml.Tag := 'S:Envelope';
xml.AddAttribute('xmlns:S','http://schemas.xmlsoap.org/soap/envelope/');
xml.UpdateAttrAt('S:Body|validateRequestInput',1,'xmlns','http://peppol.helger.com/ws/documentvalidationservice/201701/');
xml.UpdateAttrAt('S:Body|validateRequestInput',1,'VESID','at.ebinterface:invoice:5.0');
xml.UpdateAttrAt('S:Body|validateRequestInput',1,'displayLocale','en');
xml.UpdateChildContent('S:Body|validateRequestInput|XML',sbPeppolInvoiceXml.GetAsString());

// Set the Content-Type of the request.
http.SetRequestHeader('Content-Type','text/xml');

// We don't need to specify the Content-Length or Host headers.  Chilkat automatically adds them.

// Send the request...
resp := http.PostXml('https://peppol.helger.com/wsdvs',xml.GetXml(),'utf-8');
if (http.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('Response Status Code = ' + IntToStr(resp.StatusCode));

respXml := TChilkatXml.Create(Self);
respXml.LoadXml(resp.BodyStr);

Memo1.Lines.Add('Response XML:');
Memo1.Lines.Add(respXml.GetXml());

// A success repsonse looks like this:

// <?xml version="1.0" encoding="UTF-8"?>
// <S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
//     <S:Body>
//         <validateResponseOutput xmlns="http://peppol.helger.com/ws/documentvalidationservice/201701/" success="true" interrupted="false" mostSevereErrorLevel="SUCCESS">
//             <Result success="true" artifactType="xsd" artifactPath="/schemas/ebinterface/ebinterface-5.0.xsd"/>
//         </validateResponseOutput>
//     </S:Body>
// </S:Envelope>
end;