Custom Rule Actions

Custom rule actions allow you to define a unique action to take when certain conditions are met. They involve three primary components: a query pipeline, a custom rule type, and a rule that is triggered by conditions defined by the user. To learn use custom rule actions with the API, see Create Custom Rule Actions with the API.

Create Custom Rule Actions with the API

Custom rule actions allow you to define a unique action to take when certain conditions are met. They involve three primary components: a query pipeline, a custom rule type, and a rule that is triggered by conditions defined by the user.This article describes the general workflow for creating a custom rule action. The example assumes the following components are used:

Component	Name
Query pipeline	custom-rule-pipeline
Custom rule type	custom-rule-type
Rule	custom-rule-action

Create a query pipeline, custom-rule-pipeline, that is used to complete the rule action.
Create a custom rule type, custom-rule-type, that uses your query pipeline. Here are some important parameters to include in your POST request.

Rule properties, included as part of the schema</code, define the values required from the user to create a rule that uses the custom rule type.

Parameter	Description	Example
`id`	A unique ID for the custom rule type. The `id` value must be unique across all apps in Fusion (global namespace).	`custom-rule-type`
`pipeline_id`	The ID of the pipeline that is invoked during rule processing.	`custom-rule-pipeline`
`display_type`	A user-friendly name for the custom rule type.	`My Custom Rule`
`custom_param1`	The ID of the rule’s parameter. This field is used in the API but is not visible in the Rules Editor.	`1st-rule-parameter`
`type`	The type of user-input.	`string`
`title`	A user-friendly name for the parameter.	`Manufacturer`
`description`	A user-friendly description of what the field is used for. The `description` value is shown in the field’s tooltip in the Rules Editor.	The manufacturer of the product to which this rule applies.

For example:

curl -u USERNAME:PASSWORD -XPOST -H "Content-type:application/json" \
https://EXAMPLE_COMPANY.b.lucidworks.cloud/api/apps/myFusionApp/custom-rule-types -d '{
  "id":"custom-rule-type",
  "pipeline_id":"custom-rule-pipeline",
  "display_type":"My Custom Rule",
  "schema": {
    "type" : "object",
    "properties" : {
      "custom_param1" : {
        "type" : "string",
        "title" : "Manufacturer",
        "description" : "The manufacturer of the product this rule action applies to."
      },
      "custom_param2" : {
        "type": "string",
        "title": "Type",
        "description": "The type of product this rule action applies to."
      }
    }
  }
}'

Verify the custom rule type was created by visiting https://EXAMPLE_COMPANY.b.lucidworks.cloud/api/apps/myFusionApp/custom-rule-types. Custom rule types are also available in the Rules Editor:

4. Create a rule, custom-rule-action, that uses your custom rule, custom-rule-type. If you are creating the rule using the Query Rewrite API, the following image depicts which parameters are shared between the custom rule type and the rule:

Note that the custom rule type id value is used for the rule’s type and custom_type fields. Remember to assign values to the custom rule properties, custom_param1 and custom_param2.

curl -u USERNAME:PASSWORD -XPOST -H "Content-type:application/json" \
https://EXAMPLE_COMPANY.b.lucidworks.cloud/api/apps/myFusionApp/query-rewrite/instances -d '{
  "id":"123456",
  "type":"custom-rule-type",
  "custom_type":"custom-rule-type",
  "name":"My Rule",
  "description":"A rule that uses my custom rule, custom-rule-type.",
  "search_terms":["upcoming sale"],
  "custom_param1":"ABC",
  "custom_param2":"XYZ",
  "pipeline_id":"custom-rule-pipeline",
  "display_type":"My Custom Rule"
}'

Verify your rule was created by checking the rule ID, 123456, with the Query Rewrite API: https://EXAMPLE_COMPANY.b.lucidworks.cloud/api/apps/myFusionApp/query-rewrite/instances/123456
Test your custom rule using your normal rule development process.

Configuration options

Required	Parameter	Description	Example
✅	`id`	A unique ID for the custom rule type. The `id` value must be unique across all apps in Fusion (global namespace).	`custom-rule-type`
✅	`pipeline_id`	The ID of the pipeline that is invoked during rule processing.	`custom-rule-pipeline`
✅	`display_type`	A user‑friendly name for the custom rule type.	`My Custom Rule`

Rule properties, included as part of the schema, define the values required from the user to create a rule that uses the custom rule type.

Required	Parameter	Description	Example
✅	`custom_param1`	The ID of the rule’s parameter. This field is used in the API but is not visible in the Rules Editor.	`1st-rule-parameter`
✅	`type`	The type of user‑input.	`string`
✅	`title`	A user‑friendly name for the parameter.	`Manufacturer`
✅	`description`	A user‑friendly description of what the field is used for. The `description` value is shown in the field’s tooltip in the Rules Editor.	`The manufacturer of the product this rule action applies to.`

Introduction to Fusion

Getting Data In

Getting Data Out

Operations

Reference

Developer Docs

Neural Hybrid Search

Release Notes

Configuration options

Introduction to Fusion

Getting Data In

Getting Data Out

Operations

Reference

Developer Docs

Neural Hybrid Search

Release Notes

​Configuration options

Configuration options