Need help to use node-soap module

I have to make a server to update some device.
They asked me to use node.js and the device send a soap request. I need to check the parameters to verify the version. So I decided to use the node-soap module. (The WSDL file I use is a local file)
But I can't find how to recover the value of those parameters. I read the node-soap spec, but I couldn't find how to do that. :/
Here is my code (I didn't do much yet because I'm stuck because of this) :

var myService = {
    ActiaProxyAPI: { //MyService
        ActiaProxyAPI: { //MyPort
              GetData: function(args) { //MyFunction
                    if (args.i-uiType == "11") {
                        var ID = args.i-pcIdentifiant;
                        var reg=new RegExp("[ $]+", "g"); //parse the string (actually works)
                        var tableau=ID.split(reg); 
                        console.log(tableau[4] );
                      }
                  return {
                      name: args.o-poData 
                  };
              }

          }
      }
  };

  var xml = require('fs').readFileSync('./wsdl/ActiaProxyAPI.wsdl', 'utf8'),
      server = http.createServer(function(request,response) {
          response.end("404: Not Found: "+request.url);
      });

  server.listen(8080);
  soap.listen(server, '/wsdl', myService, xml);