# Grok multiple pattern definitions

**URL:** <https://discuss.elastic.co/t/grok-multiple-pattern-definitions/254797>\
**Category:** Logstash\
**Created:** [November 9, 2020, 5:04pm UTC](https://discuss.elastic.co/t/grok-multiple-pattern-definitions/254797 "2020-11-09T17:04:02Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**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 9, 2020, 5:14pm UTC](https://discuss.elastic.co/t/grok-multiple-pattern-definitions/254797/2 "2020-11-09T17:14:42Z")

</div>

pattern\_definitions is a hash, so it should be

```
pattern_definitions => {
    "foo" => "SomePattern"
    "bar" => "SomeOtherPattern"
}
```

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_[View the full topic](https://discuss.elastic.co/t/grok-multiple-pattern-definitions/254797)._