Re:E-commerce will evolve next month as Amazon loses the 1-C...
by captn3m0 on Friday August 18, 2017 @01:52PM
(#15048288)
This is what GNU Taler [0] does. You can send additional headers[1] to decide how the payment will be processed, such as X-Taler-Contract-Url and X-Taler-Offer-Url
[1]: https://docs.taler.net/merchant/frontend/python/html/tutoria...
[0]: https://taler.net/en/index.html