This days I’ve been playing with hello.js. Hello is a A client-side Javascript SDK for authenticating with OAuth2 web services. It’s pretty straightforward to use and well explained at documentation. I want to use it within AngularJS projects. OK, I can include the library and use the global variable “hello”, but it isn’t cool. I want to create a reusable module and available with Bower. Let’s start.
Imagine one simple AngularJS application
(function () {
angular.module('G', [])
.config(function ($stateProvider, $urlRouterProvider) {
$urlRouterProvider.otherwise("/");
$stateProvider
.state('login', {
url: "/",
templateUrl: "partials/home.html",
controller: "LoginController"
})
.state('home', {
url: "/login",
template: "partials/home.html"
});
})
.controller('LoginController', function ($scope) {
$scope.login = function () {
};
})
})();
Now we can include our references within our bower.json file
"dependencies": {
"hello": "~1.4.1",
"ng-hello": "*"
}
and append those references to our index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
<title>G</title>
<script type="text/javascript" src="assets/hello/dist/hello.all.js"></script>
<script type="text/javascript" src="assets/ng-hello/dist/ng-hello.js"></script>
<script src="js/app.js"></script>
</head>
<body ng-app="G">
<div ui-view></div>
</body>
</html>
Our ng-hello is just a service provider that wraps hello.js
(function (hello) {
angular.module('ngHello', [])
.provider('hello', function () {
this.$get = function () {
return hello;
};
this.init = function (services, options) {
hello.init(services, options);
};
});
})(hello);
That’s means that we configure the service in config callback and in our run callback we can set up events
(function () {
angular.module('G', ['ngHello'])
.config(function ($stateProvider, $urlRouterProvider, helloProvider) {
helloProvider.init({
twitter: 'myTwitterToken'
});
$urlRouterProvider.otherwise("/");
$stateProvider
.state('login', {
url: "/",
templateUrl: "partials/home.html",
controller: "LoginController"
})
.state('home', {
url: "/login",
template: "partials/home.html"
});
})
.run(function ($ionicPlatform, $log, hello) {
hello.on("auth.login", function (r) {
$log.log(r.authResponse);
});
});
})();
And finally we can perform a twitter login within our controller
(function () {
angular.module('G')
.controller('LoginController', function ($scope, hello) {
$scope.login = function () {
hello('twitter').login();
};
})
;
})();
And that’s all. You can see the whole library in my github account here
Gonzalo Ayuso - Web Architect 
Reblogged this on Dinesh Ram Kali..
Any chance you’re planning on an angular2 version?