# About parsing Elasticsearch DSL JSON in Javascript

**URL:** <https://discuss.elastic.co/t/about-parsing-elasticsearch-dsl-json-in-javascript/71198>\
**Category:** Elasticsearch\
**Created:** [January 11, 2017, 9:29am UTC](https://discuss.elastic.co/t/about-parsing-elasticsearch-dsl-json-in-javascript/71198 "2017-01-11T09:29:52Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![chainkite](https://avatars.discourse-cdn.com/v4/letter/c/dfb087/32.png) [@chainkite](https://discuss.elastic.co/u/chainkite)\
**Post date:** [January 11, 2017, 9:29am UTC](https://discuss.elastic.co/t/about-parsing-elasticsearch-dsl-json-in-javascript/71198/1 "2017-01-11T09:29:52Z")

</div>

I need to pre-process ES Search JSON before pass it to ES.

Is there a tool to parse and build AST from the POST JSON of ES Search DSL?  
I didn't find related codes in elasticsearch.js, it seems just pass the request to ES server.

---

<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 8, 2017, 9:29am UTC](https://discuss.elastic.co/t/about-parsing-elasticsearch-dsl-json-in-javascript/71198/2 "2017-02-08T09:29:55Z")

</div>

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