How to connect LDAP using ldapjs in NodeJS

Been playing around with NodeJS in the past few days and run stuck with LDAP connection using ldapjs module. Background story, the Active-Directory server, that I am trying to connect to, supports LDAPv3.

Below is the code I used to connect to the LDAP server:

var ldapClient = ldap.createClient({url: 'ldap://ldap.myhost.com.au:389'}, function (err){
  if (err) {
    console.log('Failed');
    process.exit(1);
  }
  else
    console.log('Through');
});

In the given example, it doesn't include the last callback function, I tried it as the common pattern mentioned that most operations include callback so I thought I could have a bit of luck with it, I didn't.

I have also tried with and without the callback, still didn't work.

The ldapClient container will always return true even when I change the url into an invalid one.

Anyone could share how it's done?