带有弹性 8.3.0 java api 客户端的 DeleteRequest 示例

Question

I need examples for DeleteRequest with respect to ES 8.3.0 Java Api client. I am looking for code reference where I want to delete one particular document by passing index name and the condition to delete the document. I have found only Java High Level Rest Client (Deprecated in 7.15.0), and Transport Client (Deprecated in 7.0.0).

Answer 1

You can use below code for delete specific document using id :

DeleteRequest request = DeleteRequest.of(d -> d.index("index_name").id("doc_id"));
DeleteResponse response = esClient.delete(request);

If you want to do DeleteByQuery then you can use below code (it will delete document where country is india):

DeleteByQueryRequest dbyquery = DeleteByQueryRequest
                .of(fn -> fn.query(TermQuery.of(tq -> tq.field("country").value("india"))._toQuery()).index("index_name"));
        
DeleteByQueryResponse dqr = esClient.deleteByQuery(dbyquery);

There is no details document available for above. You can see open github issue for same here