Pass data from service to controller in angularjs

Question

Following is my Service code -

myApp.service('loginServiceChk', function(){
    this.getInfo = {};
    this.chkLogin = function($http,$location,$window){
        $http.get('/users/chklogin')
            .success(function (data, status, headers, config) {             
                if (data.code!="200"){
                    this.getInfo = {};
                    $window.location.href='/#/users/login';
                }else{
                    this.getInfo = data.usersession;    
                }
            }); 
    };
});

My controller code -

myApp.controller('userDash',function($scope,$http,$location,loginServiceChk,$window){
    loginServiceChk.chkLogin($http,$location,$window);
    console.log(loginService.getInfo);
    $scope.userLogout = function() {        
        $http.get('/users/logout').success(function (data, status, headers, config) {
            if (data.logout=="200"){
                merInfo = {} ;
                $window.location.href='/#/userss/login';
            }   
        })
    };
});

However I am always getting an empty object in the console ( console.log(loginService.getInfo); ) . Let me know what I am doing wrong here.

I am expecting session data in the this.getInfo.

EDIT

If I am using .then then it is going in the if ie if (data.code!="200"){ here.

Answer 1

You have to wait for the promise.

Use this in your controller:

loginServiceChk.chkLogin($http,$location,$window).then(function() {
    console.log(loginService.getInfo);
});

And add return to your service:

this.chkLogin = function($http,$location,$window){
    return $http.get('/users/chklogin')
        .then(function (data, status, headers, config) {             
            if (data.code!="200"){
                this.getInfo = {};
                $window.location.href='/#/users/login';
            }else{
                this.getInfo = data.usersession;    
            }
        }); 
};