Question

I am implementing REST API on ZF2. Now I need to check authorization token on Module.php and return with error if authorization failed. But I did not know how to return response from Module.php.

I wrote code to check authorization in DISPATCH Event of onBootstrap. Now how to return error from Module.php without accessing controllers if authorization failed. As only exit function/call make possible to return without accessing controller. But In that case I did not getting any response. Using json_encode(array) is not look like a standard as I am already enabled ViewJsonStrategy and using JsonModel in controllers.

Answer 1

You can shortcircuit the event by having your listener return a response, eg…

public function onBootstrap(EventInterface $e)
{
    $eventManager = $e->getApplication()->getEventManager();
    // attach dispatch listener 
    $eventManager->attach('dispatch', function($e) {
        // do your auth checks...
        if (!$allowed) {
            // get response from event
            $response = $e->getResponse();
            // set status 403 (forbidden) 
            $response->setStatusCode(403);
            // shortcircuit by returning response
            return $response;
        }
    });
}