# How could I know when an index is change?

**URL:** <https://discuss.elastic.co/t/how-could-i-know-when-an-index-is-change/203957>\
**Category:** Elasticsearch\
**Created:** [October 17, 2019, 3:00am UTC](https://discuss.elastic.co/t/how-could-i-know-when-an-index-is-change/203957 "2019-10-17T03:00:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Cherry\_Zhang](https://avatars.discourse-cdn.com/v4/letter/c/e99b99/32.png) [@Cherry\_Zhang](https://discuss.elastic.co/u/Cherry_Zhang)\
**Post date:** [October 17, 2019, 3:00am UTC](https://discuss.elastic.co/t/how-could-i-know-when-an-index-is-change/203957/1 "2019-10-17T03:00:25Z")

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I want to do something when an index is change, like, a doc is added, or a doc is deleted, or more precisely, I want to know the timestamp when something is changed in an index, is there a way to do that?

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 14, 2019, 3:00am UTC](https://discuss.elastic.co/t/how-could-i-know-when-an-index-is-change/203957/2 "2019-11-14T03:00:29Z")

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