# Logstash Filtering logs

**URL:** <https://discuss.elastic.co/t/logstash-filtering-logs/288521>\
**Category:** Logstash\
**Tags:** painless\
**Created:** [November 5, 2021, 7:22pm UTC](https://discuss.elastic.co/t/logstash-filtering-logs/288521 "2021-11-05T19:22:22Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [November 5, 2021, 7:55pm UTC](https://discuss.elastic.co/t/logstash-filtering-logs/288521/2 "2021-11-05T19:55:53Z")

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You can use conditionals in the output section. See [here](https://discuss.elastic.co/t/field-reference-from-source-for-conditional-output/284956/5) for an example.

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_[View the full topic](https://discuss.elastic.co/t/logstash-filtering-logs/288521)._