so i didnt get any answers but after lots of playing around i figured out a solution.
Angularjs DI (dependency injection) for modules works as follows.
- when you bootstrap a module -automatic using
ng-app="module" or manually by triggering angular.bootstrap(document,"module"); the first thing that happens is that all its dependencies are looped and all config blocks run.
//i created a github example
https://github.com/alzalabany/angular-material-modular-starter/
example :
angular.module('zalabany',['app.core','app.wall','app.blog']);
angular.bootstrap(document, ['zalabany']);
//1-->app.core config run, app.wall config run, app.blog config run, zalabany.config runs last
//2-->then .run blocks run in same order.
so since we are trying to be modular in nature. the core as i explained my question should depend on no other app module yet all other modules depends on it. so to do this, i used an intermediate module, that link them together.
Final code. -will upload git soon-
///Linking module, sole function is to connect all modules sharing same $rootScope and making sure system loads in correct order
angular.module('zalabany',['app.core','app.wall','app.blog']);
//I'm the Core.js i depend on external libs only. i'm not aware of my own system modules.
angular.module('app.core', ['ui.router', 'ngAnimate', 'toastr', 'ngMaterial','ngMdIcons'])
.config(function($stateProvider, $urlRouterProvider, $httpProvider) {
///http interceptor in case 403,401 on any request, redirect to login right away.
$httpProvider.interceptors.push(function($q, $rootScope, $injector, $timeout, $window) {
var toastr, $state, $http;
//timeout is used to prevent circuler dependency error !
$timeout(function() {
toastr = $injector.get('toastr');
$http = $injector.get('$http');
$state = $injector.get('$state');
});
return {
responseError: function(rejection) {
if (rejection.data && rejection.data.hasOwnProperty('message')) {
toastr.error('request failed. try again later');
}
if (rejection.status === 401 || rejection.status === 403) {
console.log('rejected and redirecting', rejection);
$state.go('login');
}
return $q.reject(rejection);
}
};
});
$urlRouterProvider.otherwise("/login");
$stateProvider
.state('login', {
url: "/login",
templateUrl: "modules/core/login.html"
});
console.log('im config core');
})
.controller('loginCtrl', function($scope,$user,$rootScope){//remember $user is available every where
var self=this;
this.username = $user.username;
if($user.token && $user.id){
//validate token by sending get to auth.
$http.defaults.headers.common["auth-token"] = $user.token;
$http.defaults.headers.common["auth-uid"] = $user.id;
$http.get($oauth).then(function(){$rootScope.Login($user);},$rootScope.Logout);
}
this.login= function(){
$http.post($oauth,{username:self.username,password:self.password})
.then(function(r){
$rootScope.Login(r); //use login method on root to expose it for all modules
});
}
})
.run(function($rootScope, $state, $user,$http,$oauth) {
///$rootscope is shared between all modules. so i use it for sharing auth data since its just an object.
$rootScope.$user = $user;
$rootScope.$homepage = null;
//default home page of appchild should overide it;
//all children modules can edit this.
///FUNTION 1.
///LISTEN FOR ROUTE CHANGE AND PREVENT IF USER IS NOT LOGGED IN
$rootScope.$on('$stateChangeStart', function(event, toState, toParams, fromState, fromParams) {
if (!$rootScope.$user.hasOwnProperty('token') && toState.name !== 'login') {
console.log('prevented');
event.preventDefault();
$state.go('login');
}
});
$rootScope.Login = function(r){
// login login ...
$http.defaults.headers.common["auth-uid"] = r.token;
angular.module('zalabany').value('$user',r);
console.log('oki lets go hom',$state.go($rootScope.$homepage));
}
$rootScope.Logout = function(){
window.localStorage.clear();
$state.go('login');
}
});
///BOOTSTRAP
$(function(){
$.getJSON('PING API WITH TOKEN FROM LOCALSTORAGE', function(json) {
$user = json || data;//json is our user record
}).fail(function() {
$user=data;
window.localStorage.clear();
console.log( "login error" );
}).always(function() {
angular.module('app.core')
.value('$user',$user);
angular.bootstrap(document, ['zalabany']); //bootstrap the link module
});
});
from now on to adding new component to my app is as easy as
angular.module('app.wall', ['app.core'])
.config(function($stateProvider, $urlRouterProvider, $httpProvider) {
$stateProvider
.state('wall', {
url: "/wall",
templateUrl: "modules/wall/wall.html"
});
})
.run(function($rootScope, $state, $user,$http,$oauth) {
$rootScope.$homepage = 'wall';//Set homepage to me
// or i can use
$rootScope.$homepage = $rootScope.$homepage || 'wall';//set homepage to me if no other modules declared it it.
//Push me into the sidebar.
$rootScope.$sidebar.push({order:1, link:'/wall',title:'Feed',icon:'fa fa-star'});
});
Benefit of this structure :-
1. i hv $user info available for all modules,
2. module push it self to sidebar ,
3. routes are declared inside each module in its own config block.
4. adding new module i create new folder, add link to linking module "zalabany in this example". and i'm good to go, with authentication and everything :-)
