# Retro-action upon server response

**URL:** <https://discuss.konghq.com/t/retro-action-upon-server-response/7578>\
**Category:** Questions\
**Created:** [December 10, 2020, 5:23pm UTC](https://discuss.konghq.com/t/retro-action-upon-server-response/7578 "2020-12-10T17:23:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jean-pierre](https://avatars.discourse-cdn.com/v4/letter/j/ba8739/32.png) [@jean-pierre](https://discuss.konghq.com/u/jean-pierre)\
**Post date:** [December 10, 2020, 5:23pm UTC](https://discuss.konghq.com/t/retro-action-upon-server-response/7578/1 "2020-12-10T17:23:21Z")

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Hi!  
I would like kong to make an API call to an external server once it receives a given HTTP response from the upstream server.  
I was wondering if kong is able to do that basically ? (I didn’t see such feature in the documentation)  
If not, may be a plugin can do that ? (I didn’t see any neither)  
Thanks for your help!  
Best regards  
JP

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**Author:** ![narate](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/narate/32/1778_2.png) [@narate](https://discuss.konghq.com/u/narate)\
**Post date:** [December 10, 2020, 6:14pm UTC](https://discuss.konghq.com/t/retro-action-upon-server-response/7578/2 "2020-12-10T18:14:44Z")

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Use Kong serverless post-function to check upstream response status then use HTTP library to call external API