Scripting aggregation

Elastic Stack Elasticsearch
1

Hi
I'm working to get some KPI on my index where I load the company sales and I would like to calculate the following

Avg Ticket = Total Sales / # Tickets

I'm using the following payload:

{
  "size": 0,
  "aggs": {
    "tot_amount_euro": {
      "sum": {
        "field": "amt_euro"
      }
    },
    "count_ticket": {
      "cardinality": {
        "field": "ticket_code.keyword"
      }
    }
  }
}

and I'm getting the values to calculate the the KPI, but I would like to have the value directly from ES and then I'm trying to use the scripting bucket:

{
  "size": 0,
  "aggs": {
    "tot_amount_euro": {
      "sum": {
        "field": "amt_euro"
      }
    },
    "count_ticket": {
      "cardinality": {
        "field": "ticket_code.keyword"
      },
      "avg_ticket": {
        "bucket_script": {
          "buckets_path": {
            "tSales": "tot_amtount_euro",
            "tQty": "count_ticket"
          },
          "script": "params.tSales / params.tQty"
        }
      }
    }
  }
}

but I got this error:

"Found two aggregation type definitions in [count_ticket]: [cardinality] and [avg_ticket]"

Any suggestion ?

Thanks

2

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