elasticsearch/docs/reference/ingest/processors/convert.asciidoc

[[convert-processor]]
=== Convert processor
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<titleabbrev>Convert</titleabbrev>
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Converts a field in the currently ingested document to a different type, such as converting a string to an integer.
If the field value is an array, all members will be converted.

The supported types include: `integer`, `long`, `float`, `double`, `string`, `boolean`, `ip`, and `auto`.

Specifying `boolean` will set the field to true if its string value is equal to `true` (ignore case), to
false if its string value is equal to `false` (ignore case), or it will throw an exception otherwise.

Specifying `ip` will set the target field to the value of `field` if it contains a valid IPv4 or IPv6 address
that can be indexed into an <<ip,IP field type>>.

Specifying `auto` will attempt to convert the string-valued `field` into the closest non-string, non-IP type.
For example, a field whose value is `"true"` will be converted to its respective boolean type: `true`. Do note
that float takes precedence of double in `auto`. A value of `"242.15"` will "automatically" be converted to
`242.15` of type `float`. If a provided field cannot be appropriately converted, the processor will
still process successfully and leave the field value as-is. In such a case, `target_field` will
be updated with the unconverted field value.

[[convert-options]]
.Convert Options
[options="header"]
|======
| Name             | Required  | Default  | Description
| `field`          | yes       | -        | The field whose value is to be converted
| `target_field`   | no        | `field`  | The field to assign the converted value to, by default `field` is updated in-place
| `type`           | yes       | -        | The type to convert the existing value to
| `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]
--------------------------------------------------
PUT _ingest/pipeline/my-pipeline-id
{
  "description": "converts the content of the id field to an integer",
  "processors" : [
    {
      "convert" : {
        "field" : "id",
        "type": "integer"
      }
    }
  ]
}
--------------------------------------------------
// NOTCONSOLE