Payment Gateway API

Greetings all,

I’m relatively new to Bubble, and I’ve been grappling with a payment gateway API for nearly two weeks now. Specifically, I’ve been attempting to send an API request for recurring payments. Unfortunately, it doesn’t seem to be functioning as anticipated. I’m uncertain about the process of directing users to an external payment page and receiving updates upon successful transactions. If anyone could shed some light on this topic, I would greatly appreciate it. Thank you all so much!

Here is the screenshot of the API:

cURL screenshot API, this having error of code 401 unauthorized:

Payment Gateway documentation (Recurring API):