I have the following collection :

{
  "created_at": 1718798058,
  "default_sorting_field": "",
  "enable_nested_fields": false,
  "fields": [
    {
      "facet": true,
      "index": true,
      "infix": false,
      "locale": "",
      "name": "company",
      "optional": false,
      "sort": false,
      "stem": false,
      "type": "string"
    },
    {
      "facet": false,
      "index": true,
      "infix": false,
      "locale": "",
      "name": "name",
      "optional": false,
      "sort": false,
      "stem": false,
      "type": "string"
    },
    {
      "facet": false,
      "index": true,
      "infix": false,
      "locale": "",
      "name": "description",
      "optional": false,
      "sort": false,
      "stem": false,
      "type": "string"
    },
    {
      "facet": true,
      "index": true,
      "infix": false,
      "locale": "",
      "name": "product_type",
      "optional": false,
      "sort": false,
      "stem": false,
      "type": "string"
    },
    {
      "facet": false,
      "index": true,
      "infix": false,
      "locale": "",
      "name": "last_update",
      "optional": false,
      "sort": true,
      "stem": false,
      "type": "string"
    },
    {
      "facet": false,
      "index": true,
      "infix": false,
      "locale": "",
      "name": "popularity",
      "optional": true,
      "sort": true,
      "stem": false,
      "type": "int32"
    }
  ],
  "name": "products19JUNE",
  "num_documents": 40,
  "symbols_to_index": [],
  "token_separators": []
}

Notice the last field, "popularity". I have created an analytics rule to register various event:

{
  "name": "products_popularity",
  "params": {
    "destination": {
      "collection": "products",
      "counter_field": "popularity"
    },
    "source": {
      "collections": [
        "products"
      ],
      "events": [
        {
          "name": "products_click_event",
          "type": "click",
          "weight": 1
        },
        {
          "name": "products_visit_event",
          "type": "visit",
          "weight": 2
        },
        {
          "name": "products_conversion_event",
          "type": "conversion",
          "weight": 5
        }
      ]
    }
  },
  "type": "counter"
}

I attempt to send the following event:

"<http://localhost:8108/analytics/events>" -X POST -H "X-TYPESENSE-API-KEY: ${TYPESENSE_API_KEY}" -d '{
            "type": "conversion",
            "name": "products_purchase_event",
            "data": {
                  "doc_id": "some-doc-id",
                  "user_id": "some-user-id"
            }
        }'

The first problem happens here: it requires me to create a 'q' field in the 'data' field, which is not mentioned in the documentation. "some-doc-id" and "some-user-id" are used as placeholders value, but should otherwise be correct in my code. If I add that 'q' field, with whatever value, I get back an ok: true response, but the popularity of the relevant element is not increased, and I do not understand why. Can someone help me, please ?