getContextParameters example

public function resolve(Request $request): void
    {
        if ($request->attributes->has(PlatformRequest::ATTRIBUTE_CONTEXT_OBJECT)) {
            return;
        }

        if (!$this->isRequestScoped($request, ApiContextRouteScopeDependant::class)) {
            return;
        }

        $params = $this->getContextParameters($request);
        $languageIdChain = $this->getLanguageIdChain($params);

        $rounding = $this->getCashRounding($params['currencyId']);

        $context = new Context(
            $this->resolveContextSource($request),
            [],
            $params['currencyId'],
            $languageIdChain,
            $params['versionId'] ?? Defaults::LIVE_VERSION,
            $params['currencyFactory'],