# How can I log 400 Bad Request when creating documents

**URL:** <https://discuss.elastic.co/t/how-can-i-log-400-bad-request-when-creating-documents/281238>\
**Category:** Elasticsearch\
**Created:** [August 12, 2021, 5:26pm UTC](https://discuss.elastic.co/t/how-can-i-log-400-bad-request-when-creating-documents/281238 "2021-08-12T17:26:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![kiancross](https://avatars.discourse-cdn.com/v4/letter/k/96bed5/32.png) [@kiancross](https://discuss.elastic.co/u/kiancross)\
**Post date:** [August 12, 2021, 5:26pm UTC](https://discuss.elastic.co/t/how-can-i-log-400-bad-request-when-creating-documents/281238/1 "2021-08-12T17:26:10Z")

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When creating documents, I want `400 Bad Request`s to be added to the log so I can see clients that are getting errors.

Is this possible?

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [August 17, 2021, 1:59am UTC](https://discuss.elastic.co/t/how-can-i-log-400-bad-request-when-creating-documents/281238/2 "2021-08-17T01:59:39Z")

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Welcome to our community! 😃

Which log are you referring to here?

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**Author:** ![kiancross](https://avatars.discourse-cdn.com/v4/letter/k/96bed5/32.png) [@kiancross](https://discuss.elastic.co/u/kiancross)\
**Post date:** [August 17, 2021, 2:20am UTC](https://discuss.elastic.co/t/how-can-i-log-400-bad-request-when-creating-documents/281238/3 "2021-08-17T02:20:02Z")

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> [@warkolm](#):
>
> Which log are you referring to here?

Hi Mark,

Thanks for your reply.

I'm not referring to any log in particular - any log capable of logging these errors is fine.

Clients use the HTTP API to send data to Elastic. Sometimes these clients send malformed requests (getting a 400 error back) and I would like to track this. It is not feasible for me to track these errors on the client side.

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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:** [September 14, 2021, 2:20am UTC](https://discuss.elastic.co/t/how-can-i-log-400-bad-request-when-creating-documents/281238/4 "2021-09-14T02:20:06Z")

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