# Apply Advanced Rules

## Apply Advanced Rules Actions

### Process / ProcessRules

Passes structured request data to Drools and returns rule evaluation results in the output. Event metadata fields applicable for this action are as follows:

{% tabs %}
{% tab title="Table" %}

| Field          | Definition                                         | Example | Default |
| -------------- | -------------------------------------------------- | ------- | ------- |
| Input Element  | Json path for the input in request event payload   | basket  | -       |
| Output Element | Json path for the output in response event payload | basket  | -       |
| {% endtab %}   |                                                    |         |         |

{% tab title="JSON Schema" %}

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Apply Advanced Rules action eventMeta fields",
  "type": "object",
  "properties": {
    "eventMeta": {
      "type": "object",
      "properties": {
        "inputElement": {
          "type": "string",
          "definition": "Json path for the input in request event payload",
          "example": "basket",
          "default": null
        },
        "outputElement": {
          "type": "string",
          "definition": "Json path for the output in response event payload",
          "example": "basket",
          "default": null
        }
      }
    }
  }
}
```

{% endtab %}
{% endtabs %}

With event metadata parameters as:

{% tabs %}
{% tab title="Table" %}

| Parameter      | Definition                                                                                 | Example                        | Default |
| -------------- | ------------------------------------------------------------------------------------------ | ------------------------------ | ------- |
| Input Pattern  | JMESPath pattern to apply on data input                                                    | {items:items.productid}        | -       |
| Output Pattern | JMESPath pattern to apply on data output, before returning response                        | {totalPrice:basket.totalPrice} | -       |
| For Each       | Field for which a separate record should be passed on to Drools                            | items                          | -       |
| For Each Map   | Json pattern for mapping each record passed to Drools, allowing replication of common data | -                              | -       |
| {% endtab %}   |                                                                                            |                                |         |

{% tab title="JSON Schema" %}

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Apply Advanced Rules action eventMeta.parameters",
  "type": "object",
  "properties": {
    "eventMeta": {
      "type": "object",
      "properties": {
        "parameters": {
          "type": "object",
          "properties": {
            "inputPattern": {
              "type": "string",
              "definition": "JMESPath pattern to apply on data input",
              "example": "{items:items.productid}",
              "default": null
            },
            "outputPattern": {
              "type": "string",
              "definition": "JMESPath pattern to apply on data output, before returning response",
              "example": "{totalPrice:basket.totalPrice}",
              "default": null
            },
            "forEach": {
              "type": "string",
              "definition": "Field for each a separate record should be passed on to Drools",
              "example": "items",
              "default": null
            },
            "forEachMap": {
              "type": "string",
              "definition": "Json pattern for mapping each record that should be passed on to Drools, allowing replication of common data",
              "default": null
            }
          }
        }
      }
    }
  }
}
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.rierino.com/devops/api-event-and-process-flows/configuring-saga-steps/event-step/specialized-actions/apply-advanced-rules.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.