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Dart

Create SOAP with multiple VeriFactu Digitally Signed Registration Records

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Creates a SOAP message containing a multiple digitally signed invoice registration records, formatted according to the specifications for Spain's Veri*Factu system.

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Dart
import 'package:chilkat/chilkat.dart';

void main() {
  // Begin with the following SOAP XML:

  // <?xml version="1.0" encoding="utf-8"?>
  // <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:sum="https://www2.agenciatributaria.gob.es/static_files/common/internet/dep/aplicaciones/es/aeat/tike/cont/ws/SuministroLR.xsd" xmlns:sum1="https://www2.agenciatributaria.gob.es/static_files/common/internet/dep/aplicaciones/es/aeat/tike/cont/ws/SuministroInformacion.xsd" xmlns:xd="http://www.w3.org/2000/09/xmldsig#">
  //     <soapenv:Header/>
  //     <soapenv:Body>
  //         <sum:RegFactuSistemaFacturacion>
  //             <sum:Cabecera>
  //                 <sum1:ObligadoEmision>
  //                     <sum1:NombreRazon>XYZ STORE SL</sum1:NombreRazon>
  //                     <sum1:NIF>B99999999</sum1:NIF>
  //                 </sum1:ObligadoEmision>
  //                 <sum1:RemisionRequerimiento>
  //                     <sum1:RefRequerimiento>3333333333</sum1:RefRequerimiento>
  //                     <sum1:FinRequerimiento>S</sum1:FinRequerimiento>
  //                 </sum1:RemisionRequerimiento>
  //             </sum:Cabecera>
  // 
  //         </sum:RegFactuSistemaFacturacion>
  //     </soapenv:Body>
  // </soapenv:Envelope>

  final xml = CkXml();
  xml.tag = 'soapenv:Envelope';
  xml.addAttribute('xmlns:soapenv', 'http://schemas.xmlsoap.org/soap/envelope/');
  xml.addAttribute('xmlns:sum', 'https://www2.agenciatributaria.gob.es/static_files/common/internet/dep/aplicaciones/es/aeat/tike/cont/ws/SuministroLR.xsd');
  xml.addAttribute('xmlns:sum1', 'https://www2.agenciatributaria.gob.es/static_files/common/internet/dep/aplicaciones/es/aeat/tike/cont/ws/SuministroInformacion.xsd');
  xml.addAttribute('xmlns:xd', 'http://www.w3.org/2000/09/xmldsig#');
  xml.updateChildContent('soapenv:Header', '');
  xml.updateChildContent('soapenv:Body|sum:RegFactuSistemaFacturacion|sum:Cabecera|sum1:ObligadoEmision|sum1:NombreRazon', 'XYZ STORE SL');
  xml.updateChildContent('soapenv:Body|sum:RegFactuSistemaFacturacion|sum:Cabecera|sum1:ObligadoEmision|sum1:NIF', 'B99999999');
  xml.updateChildContent('soapenv:Body|sum:RegFactuSistemaFacturacion|sum:Cabecera|sum1:RemisionRequerimiento|sum1:RefRequerimiento', '3333333333');
  xml.updateChildContent('soapenv:Body|sum:RegFactuSistemaFacturacion|sum:Cabecera|sum1:RemisionRequerimiento|sum1:FinRequerimiento', 'S');

  // Prior to this code, we created N signed SOAP messages, each containing a single signed record.
  // Load each of these signed SOAP messages into a StringBuilder and insert after the "</sum:Cabecera>"
  // Note: We must NOT use Chilkat.Xml for this.  We must do string operations using Chilkat StringBuilder to prevent whitespace or formatting modifications which would break the signatures.

  final sbXml = CkStringBuilder();
  xml.getXmlSb(sbXml);

  // ---------------------------------------------------------------------------------------------
  // Load the previously signed XML containing just one signed record.
  final sbSignedSoap = CkStringBuilder();
  try {
    sbSignedSoap.loadFile('c:/temp/qa_output/signedSoapXml1.xml', 'utf-8');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Remove everything before "</sum:Cabecera>", including the "</sum:Cabecera>"
  sbSignedSoap.removeBefore('</sum:Cabecera>');

  // Remove everything after the "</sum:RegFactuSistemaFacturacion>", including the "</sum:RegFactuSistemaFacturacion>"
  sbSignedSoap.removeAfterFinal('</sum:RegFactuSistemaFacturacion>');

  // We now have the portion of the signed SOAP xml from <sum:RegistroFactura> to </sum:RegistroFactura>
  // Insert it after the </sum:Cabecera>
  sbSignedSoap.prepend('</sum:Cabecera>');
  sbXml.replaceFirst('</sum:Cabecera>', sbSignedSoap.getAsString());

  // ---------------------------------------------------------------------------------------------
  // Add the next signed SOAP containing a single signed record.
  try {
    sbSignedSoap.loadFile('c:/temp/qa_output/signedSoapXml2.xml', 'utf-8');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Remove everything before "</sum:Cabecera>", including the "</sum:Cabecera>"
  sbSignedSoap.removeBefore('</sum:Cabecera>');

  // Remove everything after the "</sum:RegFactuSistemaFacturacion>", including the "</sum:RegFactuSistemaFacturacion>"
  sbSignedSoap.removeAfterFinal('</sum:RegFactuSistemaFacturacion>');

  // We now have the portion of the signed SOAP xml from <sum:RegistroFactura> to </sum:RegistroFactura>
  // Insert it after the </sum:Cabecera>
  sbSignedSoap.prepend('</sum:Cabecera>');
  sbXml.replaceFirst('</sum:Cabecera>', sbSignedSoap.getAsString());

  // ---------------------------------------------------------------------------------------------
  // Continue adding more signed records if needed.

  // Save the SOAP containing multiple signed records..
  sbXml.writeFile('c:/temp/qa_output/soap_combined.xml', 'utf-8', false);
}