Ecommerce on xojo webapp

I am preparing a webapp that will be on xojo cloud when ready - I’d like to add some webcommerce “buy button” or similar with paypal (or any other ecommerce)
I want to sell files that are dynamically created within the app at runtime.

Do you think is possible, or it requires complex superadvanced coding ?

Have a look at:

there are plenty of possible solutions.

Also writing the things by your own - depending on the complexity it shouln’t be to much work.