(Xojo Plugin) 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

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// 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.
// --------------------------------------------------------------------------------

Dim http As New Chilkat.Http

// 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
Dim sbPeppolInvoiceXml As New Chilkat.StringBuilder
Dim success As Boolean
success = sbPeppolInvoiceXml.LoadFile("qa_data/xml/peppol_invoice.xml","utf-8")

Dim xml As New Chilkat.Xml
xml.Tag = "S:Envelope"
success = xml.AddAttribute("xmlns:S","http://schemas.xmlsoap.org/soap/envelope/")
success = xml.UpdateAttrAt("S:Body|validateRequestInput",True,"xmlns","http://peppol.helger.com/ws/documentvalidationservice/201701/")
success = xml.UpdateAttrAt("S:Body|validateRequestInput",True,"VESID","at.ebinterface:invoice:5.0")
success = xml.UpdateAttrAt("S:Body|validateRequestInput",True,"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...
Dim resp As Chilkat.HttpResponse
resp = http.PostXml("https://peppol.helger.com/wsdvs",xml.GetXml(),"utf-8")
If (http.LastMethodSuccess <> True) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

System.DebugLog("Response Status Code = " + Str(resp.StatusCode))

Dim respXml As New Chilkat.Xml
success = respXml.LoadXml(resp.BodyStr)

System.DebugLog("Response XML:")
System.DebugLog(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>