node-github - get user public info

Question

I'm trying to fetch some users data for a small research on github by using this api: https://developer.github.com/v3/users/#get-a-single-user

When I'm trying to fetch user data via crul I'm getting the data just by runing this command (without no authentication):

curl https://api.github.com/users/<ANY_USER>

But when I'm tying to use node-github :

var GitHubApi = require("github");
var github = new GitHubApi({...});
github.user.get({
    user: username
}, function(err, res){...});

I have authentication problems.

I try to do authentication first :

var GitHubApi = require("github");
var github = new GitHubApi({...});
github.authenticate({
    type: "basic",
    username: "MY_USERNAME",
    password: "MY_PASSWORD"
});
github.user.get({
    user: username
}, function(err, res){...});

but then I'm getting my user data and not the data for the user I want.

Any idea what is missing here? Why crul is working and github.user.get not? Any better way to do it via nodejs?

Thanks!