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Software architecture · Payments

Payment integration package diagram

A payment integration package diagram separates the checkout experience from payment orchestration and the external gateway. It also makes the asynchronous webhook path visible, which is important because a payment result may arrive after the original request. A ledger package records the business outcome without exposing its details to the checkout package. Use this diagram in an implementation review to check that provider-specific code stays behind an adapter and that callback handling has an explicit place.

유형 UML 클래스 다이어그램표준 OMG UML 2.5.1 §9–§11엔진 schematex-umlclass업데이트됨 2026. 9. 24.
Payment integration packages
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요청 내용

“Create a payment integration package diagram with checkout, payments, gateway, webhooks, and ledger packages and their dependencies.”

그렇다면Add a refunds package.Change GatewayAdapter to AdyenAdapter.
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01Separate orchestration

Checkout requests payment without owning gateway details.

02Contain the provider

Keep gateway calls inside an adapter package.

03Handle callbacks

Treat webhooks as a distinct inbound boundary.

04Record outcomes

Update the ledger from verified payment events.

Use to review responsibilities and dependencies before implementing payment flows.

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자주 묻는 질문

자주 묻는 질문

Why isolate the gateway adapter?

It keeps provider-specific requests and responses from spreading across the application.

Why show webhooks separately?

They are an inbound asynchronous flow with different verification and retry concerns.

Is this a sequence diagram?

No. It shows module dependencies, not the step-by-step timing of a payment.