validateShippingCostsParameters example

        $payload[SalesChannelContextService::PERMISSIONS] = $requestPermissions
            ? \array_fill_keys($requestPermissions, true)
            : [self::ADMIN_ORDER_PERMISSIONS];

        $this->contextPersister->save($contextToken, $payload, $salesChannelId);
    }

    private function parseCalculatedPriceByRequest(Request $request): CalculatedPrice
    {
        $this->validateShippingCostsParameters($request);

        $shippingCosts = $request->get('shippingCosts');

        return new CalculatedPrice($shippingCosts['unitPrice'], $shippingCosts['totalPrice'], new CalculatedTaxCollection(), new TaxRuleCollection());
    }

    private function validateShippingCostsParameters(Request $request): void
    {
        if (!$request->request->has('shippingCosts')) {
            throw ApiException::shippingCostsParameterIsMissing();
        }