# Dissect extract to metadata field

**URL:** https://discuss.elastic.co/t/dissect-extract-to-metadata-field/120508
**Category:** Logstash
**Created:** [February 19, 2018, 6:34pm UTC](https://discuss.elastic.co/t/dissect-extract-to-metadata-field/120508 "2018-02-19T18:34:14Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![ave19](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ave19/32/11631_2.png) [@ave19](https://discuss.elastic.co/u/ave19)
#### Post date: [February 19, 2018, 6:34pm UTC](https://discuss.elastic.co/t/dissect-extract-to-metadata-field/120508/1 "2018-02-19T18:34:15Z")

</div>

Can I tell the dissect filter to extract a field to @metadata?

```auto
dissect {
  mapping => {
    "message" => "%{[@metadata][foo]} %{+[@metadata][foo]} %{actual-foo} %{message}"
  }
}

```

---

<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 19, 2018, 6:34pm UTC](https://discuss.elastic.co/t/dissect-extract-to-metadata-field/120508/2 "2018-03-19T18:34:19Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.