# Tokenize a query string

**URL:** <https://discuss.elastic.co/t/tokenize-a-query-string/131710>\
**Category:** Elasticsearch\
**Created:** [May 14, 2018, 9:58am UTC](https://discuss.elastic.co/t/tokenize-a-query-string/131710 "2018-05-14T09:58:15Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![astropanic](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/astropanic/32/20726_2.png) [@astropanic](https://discuss.elastic.co/u/astropanic)\
**Post date:** [May 14, 2018, 9:58am UTC](https://discuss.elastic.co/t/tokenize-a-query-string/131710/1 "2018-05-14T09:58:15Z")

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How I can tokenize a query string? for example

`".../?x=1&y=foo&z=bar"`

I want be able to search for all documents where y equals foo

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [May 14, 2018, 10:17am UTC](https://discuss.elastic.co/t/tokenize-a-query-string/131710/2 "2018-05-14T10:17:29Z")

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Not sure I got it but may be this?

```auto
GET _search?q=y:foo

```

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<div class="post-metadata">

**Author:** ![astropanic](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/astropanic/32/20726_2.png) [@astropanic](https://discuss.elastic.co/u/astropanic)\
**Post date:** [May 14, 2018, 11:29am UTC](https://discuss.elastic.co/t/tokenize-a-query-string/131710/3 "2018-05-14T11:29:43Z")

</div>

Elasticsearch: [https://www.elastic.co/guide/en/elasticsearch/reference/6.2/kv-processor.html](https://www.elastic.co/guide/en/elasticsearch/reference/6.2/kv-processor.html)  
Logstash: [https://www.elastic.co/guide/en/logstash/current/plugins-filters-kv.html](https://www.elastic.co/guide/en/logstash/current/plugins-filters-kv.html)

Found via #elasticsearch on Freenode, credits are going to Xylakant

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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:** [June 11, 2018, 11:29am UTC](https://discuss.elastic.co/t/tokenize-a-query-string/131710/4 "2018-06-11T11:29:50Z")

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Closed on June 11, 2018, 11:29am UTC

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