Adyen Checkout Payment and Refund

arazzo: 1.0.1
info:
  title: Adyen Checkout Payment and Refund
  summary: Make a captured card payment then refund all or part of it.
  description: >-
    This workflow makes a Checkout payment, confirms the authorisation, and
    then refunds the supplied amount against the returned PSP reference. It is
    the canonical post-settlement refund pattern for the Checkout API. Every
    step spells out its request inline so the flow can be read and executed
    without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: checkoutApi
  url: ../openapi/adyen-checkout-api-openapi.yml
  type: openapi
workflows:
- workflowId: payment-and-refund
  summary: Make a Checkout payment and refund it by PSP reference.
  description: >-
    Submits a payment and, once it is authorised, refunds the supplied amount
    against the payment PSP reference.
  inputs:
    type: object
    required:
    - merchantAccount
    - amount
    - reference
    - paymentMethod
    - returnUrl
    - refundAmount
    properties:
      merchantAccount:
        type: string
        description: The merchant account identifier that processes the payment.
      amount:
        type: object
        description: The payment amount object with currency and value.
      reference:
        type: string
        description: Your unique reference for the payment.
      paymentMethod:
        type: object
        description: The payment method details (e.g. type scheme with card data).
      returnUrl:
        type: string
        description: The URL the shopper is returned to after the payment.
      refundAmount:
        type: object
        description: The amount object to refund (currency and value in minor units).
      refundReference:
        type: string
        description: Your unique reference for the refund request.
  steps:
  - stepId: makePayment
    description: >-
      Submit the payment with the supplied payment method and amount to obtain
      an authorisation and a payment PSP reference.
    operationId: post-payments
    requestBody:
      contentType: application/json
      payload:
        merchantAccount: $inputs.merchantAccount
        amount: $inputs.amount
        reference: $inputs.reference
        paymentMethod: $inputs.paymentMethod
        returnUrl: $inputs.returnUrl
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      pspReference: $response.body#/pspReference
      resultCode: $response.body#/resultCode
    onSuccess:
    - name: authorised
      type: goto
      stepId: refundPayment
      criteria:
      - context: $response.body
        condition: $.resultCode == "Authorised"
        type: jsonpath
  - stepId: refundPayment
    description: >-
      Refund the supplied amount against the payment PSP reference, returning
      funds to the shopper.
    operationId: post-payments-paymentPspReference-refunds
    parameters:
    - name: paymentPspReference
      in: path
      value: $steps.makePayment.outputs.pspReference
    requestBody:
      contentType: application/json
      payload:
        merchantAccount: $inputs.merchantAccount
        amount: $inputs.refundAmount
        reference: $inputs.refundReference
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      refundPspReference: $response.body#/pspReference
      status: $response.body#/status
  outputs:
    paymentPspReference: $steps.makePayment.outputs.pspReference
    refundPspReference: $steps.refundPayment.outputs.refundPspReference
    status: $steps.refundPayment.outputs.status