Question 5226 in Facebook API Question posted in
The official documentation for the Facebook APIs can be found here.

How do I keep a user logged in my website?

I am using Facebook API to log in a user. It logs in a user successfully.

But whenever I refresh the website or close it then reopen it logs out automatically. I don’t need that I want a user logged in until he himself logs out of my website. How do I do it?

This is my code:

function statusChangeCallback(response) {


    if (response.status === 'connected') {
        setElements(true);
        console.log('Logged in');
        instaInfo();
    } else {
        setElements(false);
        console.log('not logged in');
    }
}

function checkLoginState() {
    FB.getLoginStatus(function(response) {
        statusChangeCallback(response);
    });
}

function setElements(isLoggedIn) {
    if (isLoggedIn) {
        document.querySelector('#fb-btn').style.display = 'none';
        document.querySelector('.logout').style.display = 'block';
        document.querySelector('.navigation').style.display = 'block';
        document.querySelector('.nav-main').style.visibility = 'visible';
        document.querySelector('#container').style.display = 'block';
    } else {
        document.querySelector('#fb-btn').style.display = 'block';
        document.querySelector('.logout').style.display = 'none';
        document.querySelector('.navigation').style.display = 'none';
        document.querySelector('.nav-main').style.visibility = 'hidden';
        document.querySelector('#container').style.display = 'none';
    }
}

document.querySelector('.logout').addEventListener('click', () => {
    FB.logout(function() {
        setElements(false);    
        console.log('Logged Out!');
    });
});
Tags:

2

Answers


  1. 0

    According to the facebook documentation:

    While you can call FB.getLoginStatus any time (for example, when the
    user tries to take a social action), most social apps need to know the
    user’s status as soon as possible after the page loads. In this case,
    rather than calling FB.getLoginStatus explicitly, it is possible to
    check the user’s status by setting status: true when you call FB.init.

    To receive the response of this call, you must subscribe to the
    auth.statusChange event. The response object passed by this event is
    identical to that which would be returned by calling FB.getLoginStatus
    explicitly.

    https://developers.facebook.com/docs/reference/javascript/FB.getLoginStatus/

    It might just be that you’re running into a problem with the asynchronous nature of javascript in your code example. Have you checked what your call on getLoginStatus actually returns?

    Login or Signup to reply.
  2. 0

    You can take advantage of the browser’s localStorage (it’ s a method of the window object) to keep the data even after reloading the page or even after closing the window.

    Take a look here: https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage

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