Every published module, all in one place.
4 modules
Payments → Other
Foundational rules for handling money safely: server-side pricing authority, idempotent charges, integer currency math, and staying out of PCI scope.
by @markdowners
Payments → Paypal
PayPal-specific order/capture rules on top of payment-system-basics: server-side capture verification, idempotency, and sandbox testing.
Payments → Stripe
Stripe-specific integration rules on top of payment-system-basics: key handling, Elements, SCA/3DS, and treating webhooks as the source of truth.
Payments → Webhooks
How to receive any provider's webhooks safely: signature verification, idempotent processing, fast acknowledgment, and ordering assumptions.