LogIn with Facebook

Access Tokens

I was using the code from https://www.codexworld.com/facebook-login-codeigniter/ and when I traced it through using echos it didn't authenticate as there was no Access Token set. I have no idea why or where it is supposed to get it from. I would have thought there was a  call to facebook but I can't see one

In

FacebookRedirectLoginHelper.php


there is

Code:

 protected function getCode()
    {
        return $this->getInput('code');
    }

and

Code:

 private function getInput($key)
    {
        return isset($_GET[$key]) ? $_GET[$key] : null;
    }

What is suppose to doing the GET to get the value I have no idea. I can't find anything. Does anyone? If not can someone please point me in the direction of something that actually does work please.


Thanks