Login to BarraOne BDTI service using Node.js with the soap and soap-cookie packages.

login.js

var soap = require('soap'),
	Cookie = require('soap-cookie'),
	util = require('util'),
	wsdl = 'bdti.wsdl';

soap.createClient(wsdl, function(err, client) {
	client.Login({User: "USERNAME", Client: "CLIENTID", Password: "PASSWORD"}, function(err, result) {
		// Cookie based security
		client.setSecurity(new Cookie(client.lastResponseHeaders));
		// GetCalcServers (This action requires login.)
		client.GetCalcServers({}, function(err, result) {
			console.log(util.inspect(result.body));
		});
	});
});