elasticsearch-js/docs/reference/api/IngestEnrichProcessor.md

IngestEnrichProcessor [interface-IngestEnrichProcessor]

Name	Type	Description
field	Field	The field in the input document that matches the policies match_field used to retrieve the enrichment data. Supports template snippets.
ignore_missing	boolean	If true and field does not exist, the processor quietly exits without modifying the document.
max_matches	integer	The maximum number of matched documents to include under the configured target field. The target_field will be turned into a json array if max_matches is higher than 1, otherwise target_field will become a json object. In order to avoid documents getting too large, the maximum allowed value is 128.
override	boolean	If processor will update fields with pre-existing non-null-valued field. When set to false, such fields will not be touched.
policy_name	string	The name of the enrich policy to use.
shape_relation	GeoShapeRelation	A spatial relation operator used to match the geoshape of incoming documents to documents in the enrich index. This option is only used for geo_match enrich policy types.
target_field	Field	Field added to incoming documents to contain enrich data. This field contains both the match_field and enrich_fields specified in the enrich policy. Supports template snippets.