# Elasticsearch-js Client lifetime?

**URL:** <https://discuss.elastic.co/t/elasticsearch-js-client-lifetime/2521>\
**Category:** Elasticsearch\
**Created:** [June 11, 2015, 8:39pm UTC](https://discuss.elastic.co/t/elasticsearch-js-client-lifetime/2521 "2015-06-11T20:39:31Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Joshua\_P](https://avatars.discourse-cdn.com/v4/letter/j/c89c15/32.png) [@Joshua\_P](https://discuss.elastic.co/u/Joshua_P)\
**Post date:** [June 11, 2015, 8:39pm UTC](https://discuss.elastic.co/t/elasticsearch-js-client-lifetime/2521/1 "2015-06-11T20:39:32Z")

</div>

When using the elasticsearch-js library in a node.js application, should I create a new Client instance for each index/update operation (in response a user's action), or can I create a singleton and use that for the lifetime of my application? I'm not sure what's best-practice here.

---

<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:** [July 6, 2017, 12:08am UTC](https://discuss.elastic.co/t/elasticsearch-js-client-lifetime/2521/2 "2017-07-06T00:08:02Z")

</div>