Kibana metric visualization - Get Inner hits count

Elastic Stack Kibana
1

Here's my code to get inner hits count.

        GET my_index/_search
        {
          "_source": [
            "inner_hits"
          ],
          "query": {
            "nested": {
              "path": "someNestedKey",
              "query": {
                "bool": {
                  "must": [
                    {
                      "exists": {
                        "field": "someNestedKey.key1"
                      }
                    }
                  ]
                }
              },
              "inner_hits": {}
            }
          }
        }

This gives me the following response.

    {
      "took" : 2,
      "timed_out" : false,
      "_shards" : {
        "total" : 1,
        "successful" : 1,
        "skipped" : 0,
        "failed" : 0
      },
      "hits" : {
        "total" : {
          "value" : 2,
          "relation" : "eq"
        },
        "max_score" : 1.0,
        "hits" : [
          {
            "_index" : "my_index",
            "_type" : "_doc",
            "_id" : "someid",
            "_score" : 1.0,
            "_source" : { },
            "inner_hits" : {
              "my_nested_field" : {
                "hits" : {
                  "total" : {
                    **"value" : 5,**
                    "relation" : "eq"
                  },
                  "max_score" : 1.0,
                  "hits" : [{Removed the data}
                  ]
                }
              }
            }
          },
          {
            "_index" : "my_index",
            "_type" : "_doc",
            "_id" : "someid",
            "_score" : 1.0,
            "_source" : { },
            "inner_hits" : {
              "my_nested_field" : {
                "hits" : {
                  "total" : {
                    **"value" : 4,**
                    "relation" : "eq"
                  },
                  "max_score" : 1.0,
                  "hits" : [
                   {Removed the data}
                  ]
                }
              }
            }
          }
        ]
      }
    }

If you check the bold highlighted part, I basically need to get the total count that is 5+4 = 9 and show it inside Kibana's metric visualisation. I am not quite sure how to do it?

2

The metric visualization doesn't support nested data like this. You probably should use Vega because that would let you run the query directly using the query DSL

3

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