# Instrument incoming HTTP requests

**URL:** <https://discuss.elastic.co/t/instrument-incoming-http-requests/213242>\
**Category:** APM\
**Tags:** nodejs\
**Created:** [December 28, 2019, 4:02am UTC](https://discuss.elastic.co/t/instrument-incoming-http-requests/213242 "2019-12-28T04:02:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Matrix](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/matrix/32/79210_2.png) [@Matrix](https://discuss.elastic.co/u/Matrix)\
**Post date:** [December 28, 2019, 4:02am UTC](https://discuss.elastic.co/t/instrument-incoming-http-requests/213242/1 "2019-12-28T04:02:21Z")

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**Kibana version** :  
7.5  
**Elasticsearch version** :  
7.5  
**APM Server version** :  
7.5  
**APM Agent language and version** :  
nodejs 3.x

I found agent add a header named 'elastic-apm-traceparent' [here](https://github.com/elastic/apm-agent-nodejs/blob/master/lib/instrumentation/http-shared.js#L25)

so, is there any way I can add a custom header in http request?

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<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:** [January 18, 2020, 12:08am UTC](https://discuss.elastic.co/t/instrument-incoming-http-requests/213242/2 "2020-01-18T00:08:38Z")

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