# Vega Plugin: Use input signal in query

**URL:** <https://discuss.elastic.co/t/vega-plugin-use-input-signal-in-query/132053>\
**Category:** Kibana\
**Created:** [May 16, 2018, 7:53am UTC](https://discuss.elastic.co/t/vega-plugin-use-input-signal-in-query/132053 "2018-05-16T07:53:18Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Keff](https://avatars.discourse-cdn.com/v4/letter/k/eada6e/32.png) [@Keff](https://discuss.elastic.co/u/Keff)\
**Post date:** [May 16, 2018, 7:53am UTC](https://discuss.elastic.co/t/vega-plugin-use-input-signal-in-query/132053/1 "2018-05-16T07:53:19Z")

</div>

I have a vega visualization with an input signal (dropdown). I want to use this value to update the query to elastic and set the size parameter.

```
...
"signals": [
	{ "name": "points", "value": 10,
      "bind": {"input": "select", "options": [20,30,40,50]} },
	]
...
"data": [{
"name": "data",
"url": {
	"index": "testindex*",
	"body": {
		"size": {"signal": "points" } # Here I want to use the input from the signal
	  }
    }
}]

```

How can I achieve this?

---

<div class="post-metadata">

**Author:** ![rashmi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rashmi/32/16391_2.png) [@rashmi](https://discuss.elastic.co/u/rashmi)\
**Post date:** [May 16, 2018, 4:02pm UTC](https://discuss.elastic.co/t/vega-plugin-use-input-signal-in-query/132053/2 "2018-05-16T16:02:37Z")

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@nyuriks

Cheers  
Rashmi

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<div class="post-metadata">

**Author:** ![nyuriks](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nyuriks/32/26171_2.png) [@nyuriks](https://discuss.elastic.co/u/nyuriks)\
**Post date:** [May 16, 2018, 5:46pm UTC](https://discuss.elastic.co/t/vega-plugin-use-input-signal-in-query/132053/3 "2018-05-16T17:46:35Z")

</div>

@keff this would be a very cool improvement, and it has already been asked for. I hope to get to it fairly soon. Please track [https://github.com/elastic/kibana/issues/17211](https://github.com/elastic/kibana/issues/17211) to know when it gets done. Also, please check that ticket to see if it fully meets your goals. Thx!

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<div class="post-metadata">

**Author:** ![Keff](https://avatars.discourse-cdn.com/v4/letter/k/eada6e/32.png) [@Keff](https://discuss.elastic.co/u/Keff)\
**Post date:** [May 17, 2018, 5:17am UTC](https://discuss.elastic.co/t/vega-plugin-use-input-signal-in-query/132053/4 "2018-05-17T05:17:24Z")

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Ok, thank you very much.

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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 14, 2018, 5:17am UTC](https://discuss.elastic.co/t/vega-plugin-use-input-signal-in-query/132053/5 "2018-06-14T05:17:43Z")

</div>

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