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Registered domain processor

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Registered domain processor

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Extracts the registered domain (also known as the effective top-level domain or eTLD), sub-domain, and top-level domain from a fully qualified domain name (FQDN). Uses the registered domains defined in the Mozilla Public Suffix List.

Table 32. Registered Domain Options

Name	Required	Default	Description
`field`	yes		Field containing the source FQDN.
`target_field`	no	`<empty string>`	Object field containing extracted domain components. If an `<empty string>`, the processor adds components to the document’s root.
`ignore_missing`	no	`true`	If `true` and any required fields are missing, the processor quietly exits without modifying the document.
`description`	no	-	Description of the processor. Useful for describing the purpose of the processor or its configuration.
`if`	no	-	Conditionally execute the processor. See Conditionally run a processor.
`ignore_failure`	no	`false`	Ignore failures for the processor. See Handling pipeline failures.
`on_failure`	no	-	Handle failures for the processor. See Handling pipeline failures.
`tag`	no	-	Identifier for the processor. Useful for debugging and metrics.

Examples

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The following example illustrates the use of the registered domain processor:

POST _ingest/pipeline/_simulate
{
  "pipeline": {
    "processors": [
      {
        "registered_domain": {
          "field": "fqdn",
          "target_field": "url"
        }
      }
    ]
  },
  "docs": [
    {
      "_source": {
        "fqdn": "www.example.ac.uk"
      }
    }
  ]
}

Which produces the following result:

{
  "docs": [
    {
      "doc": {
        ...
        "_source": {
          "fqdn": "www.example.ac.uk",
          "url": {
            "subdomain": "www",
            "registered_domain": "example.ac.uk",
            "top_level_domain": "ac.uk",
            "domain": "www.example.ac.uk"
          }
        }
      }
    }
  ]
}

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