I am using a factory to get JSON data after a user logs in. If the username and password is correct it should pull JSON data from the api link. I have several controllers in my application that will need to use this data. I want to avoid sharing this factory with all my controllers because I do not want to keep "GETTING" data. I only want this factory to be used with the login controller. 

How can I save the data from 'dummyData' and then all the other controllers can use that data without having to make a 'GET' request every time? 

```
angular.module('ciscoImaDashboardApp').factory('dummyData', ['$q', '$http', function($q, $http) {
    var apiServices = {};

    apiServices.saveData = function(user,password) {
        var deferred = $q.defer();

        var req = $http({
            method: 'GET',
            url: 'http://magainteractive.com/prototypes/cisco-ima-dashboard/cms/web/api/login/login/?username='+user+'&password='+password
        });

        req.success(function(response) {
            deferred.resolve(response);
        });

        req.error(function(err) {
            console.log("there was an error: "+err);
            deferred.reject(err);
        });

        return deferred.promise;    
    }

    return apiServices;

}]);

```