missingTermParameter example

#[Route(path: '/api/_admin/es-search', name: 'api.admin.es-search', methods: ['POST'], defaults: ['_routeScope' => ['administration']])]     public function elastic(Request $request, Context $context): Response
    {
        if ($this->adminEsHelper->getEnabled() === false) {
            throw ElasticsearchAdminException::esNotEnabled();
        }

        $term = trim((string) $request->get('term', ''));
        $entities = $request->request->all('entities');

        if (empty($term)) {
            throw ElasticsearchAdminException::missingTermParameter();
        }

        $limit = $request->get('limit', 10);

        $results = $this->searcher->search($term, $entities, $context, $limit);

        foreach ($results as $entityName => $result) {
            $definition = $this->definitionRegistry->getByEntityName($entityName);

            /** @var EntityCollection<Entity> $entityCollection */
            $entityCollection = $result['data'];