Elasticsearch: remove/update field inside nested object

Question

{
  \"_index\" : \"test\",
  \"_type\" : \"test\",
  \"_id\" : \"1212\",
  \"_version\" : 5,
  \"found\" : true,
  \"_source\" : {
    \"count\" : 42,
    \"list_dat         


        

Answer 1

I was getting error [UpdateRequest] unknown field [params] as I was using the latest version of ElasticSearch (7.9.0.), seems like the syntax is changed a bit.

Following should work for newer versions of ElasticSearch:

$ curl -XPOST 'localhost:9200//_update/1212'
{
  "script": {
    "source": "ctx._source.list_data.removeIf(list_item -> list_item.list_id == params.remove_id);",
    "params": {
      "remove_id": 122
    }
  }
}