Facebook get login status

facebook.js

 FB.getLoginStatus(function (response) {
                            console.log(response);
                            if (response.status === 'connected') {
                               // updatePermissions();
                                // the user is logged in and has authenticated your
                                // app, and response.authResponse supplies
                                // the user's ID, a valid access token, a signed
                                // request, and the time the access token 
                                // and signed request each expire
                                FB.login(function (response) {
                                    // handle the response
                                }, {scope: 'publish_actions'});
                                var uid = response.authResponse.userID;
                                var accessToken = response.authResponse.accessToken;
                            } else if (response.status === 'not_authorized') {
                                // the user is logged in to Facebook, 
                                // but has not authenticated your app
                            } else {
                                FB.login(function (response) {
                                    // handle the response
                                }, {scope: 'publish_actions'});
                            }
                        });
                        
                        
                         FB.Event.subscribe('auth.authResponseChange', function (response) {
                // Here we specify what we do with the response anytime this event occurs. 
                if (response.status === 'connected') {
                    console.log('status connected',response);
                    // The response object is returned with a status field that lets the app know the current
                    // login status of the person. In this case, we're handling the situation where they 
                    // have logged in to the app.
                    testPermissions();
                } else if (response.status === 'not_authorized') {
                    // In this case, the person is logged into Facebook, but not into the app, so we call
                    // FB.login() to prompt them to do so. 
                    // In real-life usage, you wouldn't want to immediately prompt someone to login 
                    // like this, for two reasons:
                    // (1) JavaScript created popup windows are blocked by most browsers unless they 
                    // result from direct interaction from people using the app (such as a mouse click)
                    // (2) it is a bad experience to be continually prompted to login upon page load.
                    FB.login(function (response) {
                        // handle the response
                    }, {scope: 'publish_actions'});
                } else {
                    // In this case, the person is not logged into Facebook, so we call the login() 
                    // function to prompt them to do so. Note that at this stage there is no indication
                    // of whether they are logged into the app. If they aren't then they'll see the Login
                    // dialog right after they log in to Facebook. 
                    // The same caveats as above apply to the FB.login() call here.
                    FB.login(function (response) {
                        // handle the response
                    }, {scope: 'publish_actions'});
                }
            });

{
status: 'connected',
authResponse: {
accessToken: '...',
expiresIn:'...',
signedRequest:'...',
userID:'...'
}
}

<script src="https://gist.github.com/Ariestattoo/8307135.js"></script>

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