Zig

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. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

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

    const http = try chilkat.Http.init();
    defer http.deinit();

    // 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
    const sb_peppol_invoice_xml = try chilkat.StringBuilder.init();
    defer sb_peppol_invoice_xml.deinit();
    try sb_peppol_invoice_xml.loadFile("qa_data/xml/peppol_invoice.xml", "utf-8");

    const xml = try chilkat.Xml.init();
    defer xml.deinit();
    xml.setTag("S:Envelope");
    xml.addAttribute("xmlns:S", "http://schemas.xmlsoap.org/soap/envelope/") catch {};
    xml.updateAttrAt("S:Body|validateRequestInput", true, "xmlns", "http://peppol.helger.com/ws/documentvalidationservice/201701/") catch {};
    xml.updateAttrAt("S:Body|validateRequestInput", true, "VESID", "at.ebinterface:invoice:5.0") catch {};
    xml.updateAttrAt("S:Body|validateRequestInput", true, "displayLocale", "en") catch {};
    xml.updateChildContent("S:Body|validateRequestInput|XML", try sb_peppol_invoice_xml.getAsString(alloc));

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

    // Send the request...
    const resp = try chilkat.HttpResponse.init();
    defer resp.deinit();
    http.httpStr("POST", "https://peppol.helger.com/wsdvs", try xml.getXml(alloc), "utf-8", "text/xml", resp) catch {
        std.debug.print("{s}\n", .{try http.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Response Status Code = {d}\n", .{resp.getStatusCode()});

    const resp_xml = try chilkat.Xml.init();
    defer resp_xml.deinit();
    resp_xml.loadXml(try resp.getBodyStr(alloc)) catch {};

    std.debug.print("Response XML:\n", .{});
    std.debug.print("{s}\n", .{try resp_xml.getXml(alloc)});

    // 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>
}