# Es can validate data before insert/update? **URL:** \ **Category:** Elasticsearch\ **Created:** [September 6, 2016, 10:18am UTC](https://discuss.elastic.co/t/es-can-validate-data-before-insert-update/59869 "2016-09-06T10:18:19Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![famoss](https://avatars.discourse-cdn.com/v4/letter/f/67e7ee/32.png) [@famoss](https://discuss.elastic.co/u/famoss)\ **Post date:** [September 6, 2016, 10:18am UTC](https://discuss.elastic.co/t/es-can-validate-data-before-insert-update/59869/1 "2016-09-06T10:18:20Z")
If i insert a string data to a number field,`es` will resp `[failed to parse [xxx]]; nested: NumberFormatException[For input string: "xxx"]`. I can validate data before insert to avoid the exception? ---
**Author:** ![tanguy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tanguy/32/6030_2.png) [@tanguy](https://discuss.elastic.co/u/tanguy)\ **Post date:** [September 6, 2016, 11:03am UTC](https://discuss.elastic.co/t/es-can-validate-data-before-insert-update/59869/2 "2016-09-06T11:03:59Z")
Hi, Elasticsearch validates the data before insertion but there's no way to avoid the exception. You should validate data before indexing or you can ignore the exception. ---
**Author:** ![famoss](https://avatars.discourse-cdn.com/v4/letter/f/67e7ee/32.png) [@famoss](https://discuss.elastic.co/u/famoss)\ **Post date:** [September 7, 2016, 1:52am UTC](https://discuss.elastic.co/t/es-can-validate-data-before-insert-update/59869/3 "2016-09-07T01:52:28Z")
Thank you. Elasticsearch has any validate api? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 5, 2017, 10:22pm UTC](https://discuss.elastic.co/t/es-can-validate-data-before-insert-update/59869/4 "2017-07-05T22:22:10Z")