# APM server healthcheck returning empty response

**URL:** <https://discuss.elastic.co/t/apm-server-healthcheck-returning-empty-response/346547>\
**Category:** APM\
**Tags:** server\
**Created:** [November 6, 2023, 5:17pm UTC](https://discuss.elastic.co/t/apm-server-healthcheck-returning-empty-response/346547 "2023-11-06T17:17:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![senyam08](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/senyam08/32/106230_2.png) [@senyam08](https://discuss.elastic.co/u/senyam08)\
**Post date:** [November 6, 2023, 5:17pm UTC](https://discuss.elastic.co/t/apm-server-healthcheck-returning-empty-response/346547/1 "2023-11-06T17:17:34Z")

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We are using elactic stack 8.10.1 and APM server is running in standalone mode with kubernetes operator  
Not getting json output from apm-server for healthcheck endpoint. metrics are getting into apm-server without issue. But apm agents have warning with 2023-11-06 17:03:56,518 [elastic-apm-server-healthcheck] WARN co.elastic.apm.agent.report.ApmServerHealthChecker - Failed to parse version of APM server [https://qa-apm-server.com](https://qa-apm-server.com): Unexpected end of JSON input

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**Author:** ![lahsivjar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lahsivjar/32/101451_2.png) [@lahsivjar](https://discuss.elastic.co/u/lahsivjar)\
**Post date:** [November 7, 2023, 5:51am UTC](https://discuss.elastic.co/t/apm-server-healthcheck-returning-empty-response/346547/2 "2023-11-07T05:51:02Z")

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👋 @senyam08 ,

> Not getting json output from apm-server for healthcheck endpoint

Can you share a curl response in verbose mode from the health-check endpoint?

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<div class="post-metadata">

**Author:** ![Sylvain\_Juge](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sylvain_juge/32/55521_2.png) [@Sylvain\_Juge](https://discuss.elastic.co/u/Sylvain_Juge)\
**Post date:** [November 7, 2023, 8:47am UTC](https://discuss.elastic.co/t/apm-server-healthcheck-returning-empty-response/346547/3 "2023-11-07T08:47:20Z")

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Hi,

In order to call the healthcheck endpoint you'll need to provide your `<secret_token>` or `<api_key>` through an HTTP header as follows:

```auto
# When using secret token
curl --request GET \
  --url https://qa-apm-server.com \
  --header 'Authorization: Bearer <secret_token>'
 
# When using API key
curl --request GET \
  --url https://qa-apm-server.com \
  --header 'Authorization: ApiKey <api_key>'

```

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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:** [December 5, 2023, 8:47am UTC](https://discuss.elastic.co/t/apm-server-healthcheck-returning-empty-response/346547/4 "2023-12-05T08:47:26Z")

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