Angular-UI and PassportJS Authentication - angularjs

Question

So I'm trying to get local-auth working with passport and angular-ui but I think i've confused myself. I believe local-signup and local-login work because the redirects are working as expected.
I have a small Auth service that I want to inject and use to store the user information. it looks like this:
myApp.factory('Auth', function() {
var user;
return {
setUser: function(aUser) {
user = aUser;
},
isLoggedIn: function() {
return (user) ? user : false;
}
}
});
My routes look like this:
app.post('/login', function(req, res, next) {
passport.authenticate('local-login', function(err, user, info) {
if (err) {
console.log(err);
return next(err);
}
if (!user) {
console.log(user);
var param = 'There was an error with your login';
return res.redirect('/#/login?valid=' + param);
}
req.logIn(user, function(err) {
if (err) {
console.log(err);
return next(err);
}
//console.log(req);
console.log(user);
return res.redirect('/#/news');
});
})(req, res, next);
});
My states look like this:
myApp.config(function($stateProvider, $urlRouterProvider) {
$urlRouterProvider.otherwise("/news");
$stateProvider
.state('news', {
url: "/news",
templateUrl: "templates/news.html",
params: {
message: null
}
})
.state('people', {
url: "/people",
templateUrl: "templates/people.html",
resolve: {
authenticate: authenticate
},
})
.state('login', {
url: "/login",
templateUrl: "templates/login.html"
})
.state('signup', {
url: "/signup",
templateUrl: "templates/signup.html"
})
.state('preLogin', {
url: "/preLogin",
templateUrl: "templates/preLogin.html"
});
function authenticate($q, Auth, $state, $timeout) {
if (Auth.isLoggedIn()) {
return $q.when()
} else {
$timeout(function() {
$state.go('login')
})
return $q.reject()
}
}
});
I don't know how or when to store the user information in my Auth service. I assume I need to do this in the loginCtrl but I don't know how to tell when its a successful login besides the URL redirects.
Any help is appreciated.