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Generate an ID for an event

The add_id processor generates a unique ID for an event.

processors:
  - add_id: ~

The following settings are supported:

target_field
(Optional) Field where the generated ID will be stored. Default is @metadata._id.
type

(Optional) Type of ID to generate. Currently only elasticsearch is supported and is the default. The elasticsearch type generates IDs using the same algorithm that Elasticsearch uses for auto-generating document IDs.