I'm thinking I need to use a payment gateway like Stripe. And I might need another third party solution like ChargeBee. But as far as I can tell, there are no simple, canned, off-the-shelf integration solutions for Stripe and ChargeBee.
Or am I wrong?
What would be the best way to automate the billing and payment process to integrate with Google Sheets and Google Apps Script in this context of selling digital goods?