No Permission error using Firebase - angularjs

Question

I am trying to add Firebase for the first time to an ionic application. I have set up my project and referenced the javascript files however when I run the application I see the error 'Error: Permission Denied'
I have not yet set up authentication in my app but, if I am understanding things properly I shouldn't need to do this while I am just testing.
My index.html contains the following:
<!-- ionic/angularjs js -->
<script src="lib/ionic/js/ionic.bundle.js"></script>
<!-- Firebase -->
<script src="https://cdn.firebase.com/js/client/2.2.4/firebase.js"></script>
<!-- AngularFire -->
<script src="https://cdn.firebase.com/libs/angularfire/1.2.0/angularfire.min.js"></script>
While the app.js has the following lines:
angular.module('starter', ['ionic', 'firebase'])
.factory("Items", function($firebaseArray) {
var itemsRef = new Firebase("https://todo-83e58.firebaseio.com/items");
return $firebaseArray(itemsRef);
})
.controller('ListCtrl', function($scope, $ionicListDelegate, Items) {
$scope.items = Items;
$scope.addItem = function () {
var name = prompt("what do you need to buy?");
if (name) {
$scope.items.$add({"name": name});
}
};
I would be grateful for any pointers on how to get the basics right as I have tried following the information on the Firebase site and I seem to have it all set up correctly. Am I misunderstanding the authentication or shouldI be able to write to the database without setting this up first ?

Answer 1

It sounds that your Security & Rules isn't giving you access to items. Please make sure to spend some time reading the S&R documentation.
If you are only testing the application and don't want to care about it now just set it to full read and write.
On the new console go to Database > Rules.
{
"rules": {
".read": true,
".write": true
}
}