# Help with Payment API integration

**URL:** <https://forum.bubble.io/t/help-with-payment-api-integration/74033>\
**Category:** APIs\
**Created:** [December 14, 2019, 2:35pm UTC](https://forum.bubble.io/t/help-with-payment-api-integration/74033 "2019-12-14T14:35:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gomeznilson](https://avatars.discourse-cdn.com/v4/letter/g/4bbf92/32.png) [@gomeznilson](https://forum.bubble.io/u/gomeznilson)\
**Post date:** [December 14, 2019, 2:35pm UTC](https://forum.bubble.io/t/help-with-payment-api-integration/74033/1 "2019-12-14T14:35:15Z")

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Hi guys,

I’m looking for help setting up a payment api. It’s an API in here in my country, the thing is that I have to make a post with some values and one of those values need to be calculated as a hash HMAC SHA512. This value need a private key and for that reason we have to do it in a backend server. I don’t know how to do it in bubble. Please I need a help.

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**Author:** ![nocodeventure](https://sea1.discourse-cdn.com/bubble/user_avatar/forum.bubble.io/nocodeventure/32/247164_2.png) [@nocodeventure](https://forum.bubble.io/u/nocodeventure)\
**Post date:** [December 14, 2019, 11:04pm UTC](https://forum.bubble.io/t/help-with-payment-api-integration/74033/2 "2019-12-14T23:04:18Z")

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Maybe use Integromat or JavaScript workflows plugin to execute server script.