function validate_in()
 {
     $ci =& get_instance();
     $ci->load->config('jwt_auth/jwt_auth');
     $request = strstr($_SERVER['REQUEST_URI'], 'api');
     $parts = explode('/', $request);
     if (empty($parts[0])) {
         // show_404();
         // if (! $ci->ion_auth->logged_in() )
         // redirect('login', 'refresh');
         // return;
     } else {
         // HOOK FOR LOGIN
         if (strstr($_SERVER['REQUEST_URI'], $ci->config->item('uri_login_name'))) {
             return;
         }
         // HOOK FOR EXCEPT LOGIN
         $jwt = $ci->input->get_request_header($ci->config->item('auth_key_name'));
         try {
             $data = JWT::checkToken($jwt);
         } catch (Exception $e) {
             JWT::raise_json(['error' => $e->getMessage()], 401);
         }
         $GLOBALS[$ci->config->item('identity_id')] = $data->{$ci->config->item('identity_id')};
     }
 }