PureBasic

PEPPOL Document Validation

See more HTTP Misc Examples

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

IncludeFile "CkHttpResponse.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkStringBuilder.pb"
IncludeFile "CkXml.pb"

Procedure ChilkatExample()

    success.i = 0

    ; 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.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; 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.i = CkStringBuilder::ckCreate()
    If sbPeppolInvoiceXml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkStringBuilder::ckLoadFile(sbPeppolInvoiceXml,"qa_data/xml/peppol_invoice.xml","utf-8")

    xml.i = CkXml::ckCreate()
    If xml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXml::setCkTag(xml, "S:Envelope")
    CkXml::ckAddAttribute(xml,"xmlns:S","http://schemas.xmlsoap.org/soap/envelope/")
    CkXml::ckUpdateAttrAt(xml,"S:Body|validateRequestInput",1,"xmlns","http://peppol.helger.com/ws/documentvalidationservice/201701/")
    CkXml::ckUpdateAttrAt(xml,"S:Body|validateRequestInput",1,"VESID","at.ebinterface:invoice:5.0")
    CkXml::ckUpdateAttrAt(xml,"S:Body|validateRequestInput",1,"displayLocale","en")
    CkXml::ckUpdateChildContent(xml,"S:Body|validateRequestInput|XML",CkStringBuilder::ckGetAsString(sbPeppolInvoiceXml))

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

    ; Send the request...
    resp.i = CkHttpResponse::ckCreate()
    If resp.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkHttp::ckHttpStr(http,"POST","https://peppol.helger.com/wsdvs",CkXml::ckGetXml(xml),"utf-8","text/xml",resp)
    If success = 0
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkStringBuilder::ckDispose(sbPeppolInvoiceXml)
        CkXml::ckDispose(xml)
        CkHttpResponse::ckDispose(resp)
        ProcedureReturn
    EndIf

    Debug "Response Status Code = " + Str(CkHttpResponse::ckStatusCode(resp))

    respXml.i = CkXml::ckCreate()
    If respXml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXml::ckLoadXml(respXml,CkHttpResponse::ckBodyStr(resp))

    Debug "Response XML:"
    Debug CkXml::ckGetXml(respXml)

    ; 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>


    CkHttp::ckDispose(http)
    CkStringBuilder::ckDispose(sbPeppolInvoiceXml)
    CkXml::ckDispose(xml)
    CkHttpResponse::ckDispose(resp)
    CkXml::ckDispose(respXml)


    ProcedureReturn
EndProcedure