OpenSearch/docs/reference/ingest/processors/trim.asciidoc

[[trim-processor]]
=== Trim Processor
Trims whitespace from field. If the field is an array of strings, all members of the array will be trimmed.

NOTE: This only works on leading and trailing whitespace.

[[trim-options]]
.Trim Options
[options="header"]
|======
| Name              | Required  | Default  | Description
| `field`           | yes       | -        | The string-valued field to trim whitespace from
| `target_field`    | no        | `field`  | The field to assign the trimmed value to, by default `field` is updated in-place
| `ignore_missing`  | no        | `false`  | If `true` and `field` does not exist, the processor quietly exits without modifying the document
include::common-options.asciidoc[]
|======

[source,js]
--------------------------------------------------
{
  "trim": {
    "field": "foo"
  }
}
--------------------------------------------------
// NOTCONSOLE