Creating user with Firebase createUser and Ember.js (Account) model

I am attempting to create a user via the Firebase Email & Password Authentication method and then creating an account with that newly created users id rather than using the automatically generated id. I am using my 'account' model to add accounts with Ember's 'store.createRecord' method to my Firebase backend. If anyone could help me make this work I would really appreciate it!

App.SignUpController = Ember.Controller.extend({
needs: ['sign-in'],
needs: ['application'],
userSignedIn: false,


actions: {
    signMeUp: function() {
        controllerContext = this;
        var state = false;

        // Create firebase user
        ref.createUser({
                email    : this.get('email'),
                password : this.get('password'),
            }, function(error) {
                if (error === null) {
                    console.log("User created successfully");
                    console.log("Authenticated successfully with payload:", authData);
                    state = true;
                    controllerContext.set('userSignedIn', state);
                    console.log("State from sign-up page: "+ state);
            } else {
                    console.log("Error creating account:", error);
            }
        });


        // Option 1: randomly generated id
        var newAccount = this.store.createRecord('account', {
              email: this.get('email'),
              password: this.get('password'),
        });

        newAccount.save();


        // Option 2: attempt to use id from createUser
        ref.child("users").child(authData.uid).set(authData);

        this.transitionToRoute('new-post');
    }
}
});