listening-to-league-events.md

Listening to League OAuth Server events

During the lifecycle of a request passing through the authorization server a number of events may be dispatched. A list of those event names can be found in the constants of the \League\OAuth2\Server\RequestEvent class.

In order to listen to those events you need to create a standard Symfony event listener or subscriber for them.

Example:

1. Create the event listener.

   <?php
   
   declare(strict_types=1);
   
   namespace App\EventListener;
   
   use League\OAuth2\Server\RequestAccessTokenEvent;
   
   final class FooListener
   {
       public function onAccessTokenIssuedEvent(RequestAccessTokenEvent $event): void
       {
           // do something
       }
   }

2. Register the event listener:

   services:
       App\EventListener\FooListener:
           tags:
               - { name: kernel.event_listener, event: access_token.issued, method: onAccessTokenIssuedEvent }