OffcanvasCartPageLoadedEvent example

$page = OffcanvasCartPage::createFrom($page);

        if ($page->getMetaInformation()) {
            $page->getMetaInformation()->assign(['robots' => 'noindex,follow']);
        }

        $page->setCart($this->cartService->get($salesChannelContext->getToken(), $salesChannelContext));

        $page->setShippingMethods($this->getShippingMethods($salesChannelContext));

        $this->eventDispatcher->dispatch(
            new OffcanvasCartPageLoadedEvent($page, $salesChannelContext, $request)
        );

        return $page;
    }

    private function getShippingMethods(SalesChannelContext $context): ShippingMethodCollection
    {
        $request = new Request();
        $request->query->set('onlyAvailable', '1');

        return $this->shippingMethodRoute->load($request, $context, new Criteria())->getShippingMethods();
    }