Consuming DynamicsNAV WebService with Node.JS node-soap - node.js

Question

I want to consume the WebService from Microsoft Dynamics NAV 2009 with a small node.js application. The Service itself works fine, I am using it with a c# application, now I want to get data into my nodejs/expressjs application but, I always get Invalid WSDL URL as an error message.
Here is the WSDL as my Browser sees it.
Now I tried to connect with node-soap, following the documentation, by normal and by basic auth, but everytime I get an Invalid WSDL URL error.
Here are the methods I tried for a test connection:
var url = "http://navsrv:7047/DynamicsNAV2/WS/Produktiv/Page/WDCETA";
var auth = "Basic " + new Buffer("*********" + ":" + ****************").toString("base64");
soap.createClient(url, function(err, client) {
console.log('Without basic out:');
if (err)
{
console.log('[ERROR] -> ');
console.log(err);
}
console.log(client);
});
soap.createClient(url, {wsdl_headers: {Authorization: auth} }, function(err, client) {
console.log('With basic out:');
if (err)
{
console.log('[ERROR] -> ');
console.log(err);
}
console.log(client);
});
And this is the response I get:
Without basic out:
[ERROR] ->
[Error: Invalid WSDL URL: http://navsrv:7047/DynamicsNAV2/WS/Produktiv/Page/WDDCETA
Code: 401
Response Body: ]
undefined
With basic out:
[ERROR] ->
[Error: Invalid WSDL URL: http://navsrv:7047/DynamicsNAV2/WS/Produktiv/Page/WDDCETA
Code: 401
Response Body: ]
undefined

Answer 1

As it turned out, the build in HTTP-Server from DyanmicsNAV requires SPNEGO or NTLM as authentication. After some tries creating a proper SPNEGO request with nodejs/node-soap I turned off SPNEGO and enabled NTLM.
With the help of soap-ntlm and httpntlm I could retrieve the wsdl.
This is some testing code how I could manage to retrieve the WSDL file. For now I am happy, but I guess when it comes to invoke function there will be some other issues :)
var soap = require('soap-ntlm');
var fs = require('fs');
var httpntlm = require('httpntlm');
var url = 'http://navsrv:7047/DynamicsNAV2/WS/Produktiv/Page/WDCETA';
var username = '*******';
var password = '***********';
httpntlm.get({
url: url,
password: password,
username: username
}, function(err, wsdl) {
if (err)
{
console.log('ERR: -> ');
console.log(err);
return;
}
fs.writeFile('wsdl_cache/WDCETA.wsdl', wsdl.body, function() {
soap.createClient(__dirname + '/wsdl_cache/WDCETA.wsdl', function(err, client) {
if (err) {
console.log('SOAP ERR: ->');
console.log(err);
return;
}
client.setSecurity(new soap.NtlmSecurity(username, password));
console.log(client);
});
})
});