Angular : pass parameter to controller from $routeProvider.when - angularjs

Question

I perform a routing upon a broadcast and I need to pass a parameter from $rootScope.$on to a controller through routing.
$rootScope.$on('unauthorized_access', function (event, args) {
$location.path('/login:' + args.msg);
});
Now, this is working.
$routeProvider
.when('/', {
templateUrl: 'mainApp/landingPage/login.html'
})
.when('/login::msg', {
templateUrl: function(params) {
if (params) {
// The params can be printed in console from here...
console.log(params);
}
return 'mainApp/landingPage/login.html';
},
controller: 'loginController'
})
.otherwise({
redirectTo: '/'
});
Now, so far it seems okay. But I need to pass the params to loginController. I tried,
.when('/login::msg', {
templateUrl: function(params) {
if (params) {
console.log(params);
}
return 'mainApp/landingPage/login.html';
},
controller: 'loginController',
pageParams : params
})
but I think, I am doing it wrong. Please help me. Any helps is appreciated. Thank you.
EDIT : I will add a scenario. I need to pass a message-string to loginController from any screen when the 'token' becomes invalid after a fixed time and user is redirected to login screen. Now, when the user arrives for the first time, there is no message to be shown.
Hence, this is how I pass the message to broadcast
$rootScope.$broadcast('unauthorized_access', param);

Answer 1

Use resolve:
$routeProvider
.when("/news", {
templateUrl: "newsView.html",
controller: "newsController",
resolve: {
message: function(messageService){
return messageService.getMessage();
}
}
});
Then in your controller, you can get the data like below:
app.controller("newsController", function (message) {
$scope.message = message;
});
More on this:
http://odetocode.com/blogs/scott/archive/2014/05/20/using-resolve-in-angularjs-routes.aspx