Im co-author of Searchkit (www.searchkit.co). This Hierarchical filtering demo uses Elasticsearch aggregations on nested documents with our Hierarchical filter

Im co-author of Searchkit (www.searchkit.co). This Hierarchical filtering demo uses Elasticsearch aggregations on nested documents with our Hierarchical filter component. For more info see http://docs.searchkit.co/stable/docs/components/navigation/hierarchical-refinement-filter.html http://docs.searchkit.co/stable/docs/components/navigation/h... and https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-nested-aggregation.html https://www.elastic.co/guide/en/elasticsearch/reference/curr...