# Vega Visualization and custom data source

**URL:** <https://discuss.elastic.co/t/vega-visualization-and-custom-data-source/295502>\
**Category:** Kibana\
**Tags:** vega\
**Created:** [January 26, 2022, 7:42pm UTC](https://discuss.elastic.co/t/vega-visualization-and-custom-data-source/295502 "2022-01-26T19:42:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![tstadler](https://avatars.discourse-cdn.com/v4/letter/t/aca169/32.png) [@tstadler](https://discuss.elastic.co/u/tstadler)\
**Post date:** [January 26, 2022, 7:42pm UTC](https://discuss.elastic.co/t/vega-visualization-and-custom-data-source/295502/1 "2022-01-26T19:42:01Z")

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Is there way to parse the selected time range or query to the data url in a Vega visualization if the data source is not Elasticsearch?

e.g.

```auto
{
    "$schema": "https://vega.github.io/schema/vega-lite/v5.json",
    "data": {
        "url": http://example.com/?query=%kql%&from=%min%&to=%max%
    },
...
}

```

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<div class="post-metadata">

**Author:** ![aaron-nimocks](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/aaron-nimocks/32/73965_2.png) [@aaron-nimocks](https://discuss.elastic.co/u/aaron-nimocks)\
**Post date:** [January 27, 2022, 12:37pm UTC](https://discuss.elastic.co/t/vega-visualization-and-custom-data-source/295502/2 "2022-01-27T12:37:53Z")

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There are 2 variables `{"%timefilter%": "min"}` and `{"%timefilter%": "max"}` that will return the values in the timefilter but I don't think you can use in the `url` setting (only within the body). There is nothing to return the KQL query also.

So I would say that this wouldn't be possible.

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<div class="post-metadata">

**Author:** ![tstadler](https://avatars.discourse-cdn.com/v4/letter/t/aca169/32.png) [@tstadler](https://discuss.elastic.co/u/tstadler)\
**Post date:** [January 27, 2022, 6:57pm UTC](https://discuss.elastic.co/t/vega-visualization-and-custom-data-source/295502/3 "2022-01-27T18:57:48Z")

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Ok. Thank you!

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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:** [February 24, 2022, 6:58pm UTC](https://discuss.elastic.co/t/vega-visualization-and-custom-data-source/295502/4 "2022-02-24T18:58:35Z")

</div>

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