If FB.init({status:true}) causes the Javascript SDK to load status, how can I get the status?

Question

If FB.init({status:true}) causes the Javascript SDK to load status, what is the most efficient way I can get the status?

Do I have to use the async call to FB.getLoginStatus() ? Or is there a synchronous way to get the status that would save a web request?

Answer 1

If you want to do it using JavaScript, then the only way is to make FB.getLoginStatus() call. However, if you are worried about, say, slow response time, then you could simply save the status in a cookie once a successful authorization process is completed.

Though, since we are talking about milliseconds, I would discourage you from going that way.

Answer 2

The most efficient way to retrieve the status is subscribing to the auth.authRepsonseChange event.

example:

 var auth_response_change_callback = function(response) { console.log("auth_response_change_callback"); console.log(response); }; FB.Event.subscribe('auth.authResponseChange', auth_response_change_callback); 

Source: FB event documentation