# How to write trigger condition

**URL:** <https://forum.opensearch.org/t/how-to-write-trigger-condition/311>\
**Category:** Alerting\
**Tags:** troubleshoot\
**Created:** [March 29, 2019, 5:39am UTC](https://forum.opensearch.org/t/how-to-write-trigger-condition/311 "2019-03-29T05:39:07Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![bijeshr](https://avatars.discourse-cdn.com/v4/letter/b/ccd318/32.png) [@bijeshr](https://forum.opensearch.org/u/bijeshr)\
**Post date:** [December 8, 2020, 1:18am UTC](https://forum.opensearch.org/t/how-to-write-trigger-condition/311/6 "2020-12-08T01:18:14Z")

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buckets is an array, so something like this works:

```auto
ctx.results[0].aggregations.group_by_host.buckets[0].doc_count > 400

```

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