app.php

<?php

$app->get('/hello/{name}', function ($name) use ($app) {
    return [
        'controller' => 'blog',
        'action' => 'hello',
        'name' => $name,
        'app' => $app,
    ];
});

$app->on(KernelEvents::VIEW, function ($event) use ($app, $dispatcher) {
    $view = $event->getControllerResult();

    if (is_null($view) || is_string($view)) {
        return;
    }
    
    if ( ! is_array($view)) {
        // we can only handle array data in the view
        return;
    }
    
    if (! (isset($view['controller'] && isset($view['action'])))) {
        // at this point we don't know what is going on.
        return;
    }

    $response = $dispatcher($view);

    if ( ! $response instanceof Response) {
        // If the response is not a Response instance, wrap it in one
        // and assume that it was something appropriate as a response
        // body.
        $response = new Response($response);
    }

    $event->setResponse($response);
});

Thank you. I am updating the post http://harikt.com/blog/2013/11/06/using-aura-dispatcher-in-silex/