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Multiple ChoiceIntermediate 45s

DIP: direction of dependency arrows

In a hexagonal architecture, the domain defines a PaymentGateway port and the infrastructure provides a Stripe adapter. Which dependency direction is correct?
Options
  1. 1Infrastructure depends on the domain port; domain knows nothing of Stripe
  2. 2Domain depends on the Stripe SDK so it can call it directly
  3. 3Both depend on a shared third module that imports both
  4. 4Domain depends on infrastructure interfaces defined inside the Stripe package
architecturesoliddiphexagonal

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