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

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[[gsub-processor]]
=== Gsub Processor
Converts a string field by applying a regular expression and a replacement.
If the field is not a string, the processor will throw an exception.
[[gsub-options]]
.Gsub Options
[options="header"]
|======
| Name | Required | Default | Description
| `field` | yes | - | The field to apply the replacement to
| `pattern` | yes | - | The pattern to be replaced
| `replacement` | yes | - | The string to replace the matching patterns with
| `target_field` | no | `field` | The field to assign the converted value to, by default `field` is updated in-place
| `ignore_missing` | no | `false` | If `true` and `field` does not exist or is `null`, the processor quietly exits without modifying the document
include::common-options.asciidoc[]
|======
[source,js]
--------------------------------------------------
{
"gsub": {
"field": "field1",
"pattern": "\.",
"replacement": "-"
}
}
--------------------------------------------------
// NOTCONSOLE