Run a grok processor Added in 6.1.0
Extract structured fields out of a single text field within a document. You must choose which field to extract matched fields from, as well as the grok pattern you expect will match. A grok pattern is like a regular expression that supports aliased expressions that can be reused.
GET
/_ingest/processor/grok
curl \
-X GET http://api.example.com/_ingest/processor/grok