Structural Design Pattern :

Patterns that deal with object composition and identify simple ways have relationships between different objects

Adapter

• Allows objects with incompatible interfaces to work together by wrapping an object with an interface that the client expects.

---
config:
  look: handDrawn
  theme: redux
  layout: elk
---
classDiagram
direction BT
    class OldPaymentSystem {
	    +makePayment(amount: number) Object
    }

    class StripPaymentService {
	    +chargeCard(cardNumber: number, amount: number, currency: string) Object
    }

    class ModernPaymentInterface {
	    +paymentProcess(paymentDetails: Object) Object
    }

    class OldPaymentAdapter {
	    +oldSystem: OldPaymentSystem
	    +constructor()
	    +paymentProcess(paymentDetails: Object) Object
    }

    class StripAdapter {
	    +strip: StripPaymentService
	    +constructor()
	    +paymentProcess(paymentDetails: Object) Object
    }

    class PaymentProcess {
	    -adapter: ModernPaymentInterface
	    +constructor(adapter: ModernPaymentInterface)
	    +process(paymentDetails: Object) Object
    }

	<<abstract>> ModernPaymentInterface

	note for OldPaymentSystem "Legacy payment system\nwith different interface"
	note for StripPaymentService "Third-party service\nwith incompatible interface"
	note for ModernPaymentInterface "Target interface that\nclient expects"
	note for OldPaymentAdapter "Adapter: Converts\nOldPaymentSystem to\nModernPaymentInterface"
	note for StripAdapter "Adapter: Converts\nStripPaymentService to\nModernPaymentInterface"
	note for PaymentProcess "Client: Works with\nModernPaymentInterface\nwithout knowing adaptees"

    ModernPaymentInterface <|-- OldPaymentAdapter : implements
    ModernPaymentInterface <|-- StripAdapter : implements
    OldPaymentAdapter o-- OldPaymentSystem : adapts
    StripAdapter o-- StripPaymentService : adapts
    PaymentProcess o-- ModernPaymentInterface : uses