Do you have experience with Elasticsearch?

Yes, I have experience working with Elasticsearch. It is a distributed search and analytics engine based on Apache Lucene. I have used Elasticsearch for implementing full-text search, aggregations, and analytics in various projects.

My main experiences include:

• Indexing and configuring mappings for optimal search.
• Using DSL queries for complex searches.
• Setting up clusters and monitoring performance.
• Integrating Elasticsearch with Java applications using the official RestHighLevelClient.

An example of a simple Java query using RestHighLevelClient:

SearchRequest searchRequest = new SearchRequest("products");
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
sourceBuilder.query(QueryBuilders.matchQuery("name", "laptop"));
searchRequest.source(sourceBuilder);

SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);

This experience allows me to effectively use Elasticsearch for search and analytics tasks.