Help with Payment API integration

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.

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

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