Payment gateway

Hello everyone, hope you’re doing well. I need to setup a payment gateway. I use webflow and wized. I have a dashboard for users and there they will be able to pay for a service, then when they click „pay“ i want to redirect them to the payment gateway providers url where they have the payment form already made. Once the payment is completed I want that specific user to be redirected to my site and my site has to recognize that the payment is done and the service will be open for that user. Please help

How can I do this in appwrite in the cloud function? And how to link this to webflow or wized? I don’t know what to do at this point. Hope someone can help

Here is the documentation from the payment provider:

https://cps.corvuspay.com/documentation/documents/CorvusPay_IntegrationManual.pdf