# How to use if condition in logstash

**URL:** https://discuss.elastic.co/t/how-to-use-if-condition-in-logstash/209794
**Category:** Logstash
**Created:** [November 28, 2019, 5:55am UTC](https://discuss.elastic.co/t/how-to-use-if-condition-in-logstash/209794 "2019-11-28T05:55:44Z")
**Posts on this page:** 3
**Page:** 1

<div class="post-metadata">

### Author: ![Sagar\_Mandal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sagar_mandal/32/57073_2.png) [@Sagar\_Mandal](https://discuss.elastic.co/u/Sagar_Mandal)
#### Post date: [November 28, 2019, 5:55am UTC](https://discuss.elastic.co/t/how-to-use-if-condition-in-logstash/209794/1 "2019-11-28T05:55:44Z")

</div>

Hi,  
I want to use if statement in my logstasg config file to get some particular data from a file.  
but i don't know how exactly we use if statements in its config file.  
any one can please share me the syntax here.

Thanks.

---

<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 28, 2019, 1:51pm UTC](https://discuss.elastic.co/t/how-to-use-if-condition-in-logstash/209794/2 "2019-11-28T13:51:29Z")

</div>

The [documentation](https://www.elastic.co/guide/en/logstash/current/event-dependent-configuration.html#conditionals) has examples.

---

<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: [December 26, 2019, 1:51pm UTC](https://discuss.elastic.co/t/how-to-use-if-condition-in-logstash/209794/3 "2019-12-26T13:51:34Z")

</div>

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