# How We can extract query

**URL:** <https://discuss.elastic.co/t/how-we-can-extract-query/141021>\
**Category:** Logstash\
**Created:** [July 22, 2018, 7:59am UTC](https://discuss.elastic.co/t/how-we-can-extract-query/141021 "2018-07-22T07:59:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Mojtaba\_Motamed](https://avatars.discourse-cdn.com/v4/letter/m/f0a364/32.png) [@Mojtaba\_Motamed](https://discuss.elastic.co/u/Mojtaba_Motamed)\
**Post date:** [July 22, 2018, 7:59am UTC](https://discuss.elastic.co/t/how-we-can-extract-query/141021/1 "2018-07-22T07:59:23Z")

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I have this url  
[https://www.reddit.com/search?q=apple](https://www.reddit.com/search?q=apple)  
i want to extract query parameter from thie url  
how?

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<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:** [July 22, 2018, 11:49am UTC](https://discuss.elastic.co/t/how-we-can-extract-query/141021/2 "2018-07-22T11:49:01Z")

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Use a dissect filter

```
dissect { mapping => { "somefield" => "%{url}?%{qs}" } }
kv { source = "qs" field_split => "&" }
```

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<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:** [August 19, 2018, 11:49am UTC](https://discuss.elastic.co/t/how-we-can-extract-query/141021/3 "2018-08-19T11:49:01Z")

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