Paystack Create Charge and Submit PIN

arazzo: 1.0.1
info:
  title: Paystack Create Charge and Submit PIN
  summary: Create a direct card charge, branch when a PIN is required, submit the PIN, then check the final charge status.
  description: >-
    The PIN step of the Charge API's progressive authentication. A direct charge
    is created with the customer's card authorization; when Paystack responds that
    a PIN is required the workflow submits the PIN against the same reference and
    then checks the pending charge for its final status. A branch short-circuits
    to the status check when no PIN is needed. 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: chargeApi
  url: ../openapi/paystack-charge-api-openapi.yml
  type: openapi
workflows:
- workflowId: charge-and-submit-pin
  summary: Charge a card, satisfy a PIN challenge, then read the final status.
  description: >-
    Creates a charge, branches on whether a PIN is required, submits the PIN, and
    checks the pending charge.
  inputs:
    type: object
    required:
    - email
    - amount
    - authorization_code
    - pin
    properties:
      email:
        type: string
        description: Customer's email address.
      amount:
        type: string
        description: Amount to charge in the smallest currency unit, as a string.
      authorization_code:
        type: string
        description: A non-reusable authorization code to charge.
      pin:
        type: string
        description: The customer's 4-digit card PIN.
  steps:
  - stepId: createCharge
    description: Create a direct charge against the card authorization, sending the PIN inline.
    operationId: charge_create
    requestBody:
      contentType: application/json
      payload:
        email: $inputs.email
        amount: $inputs.amount
        authorization_code: $inputs.authorization_code
        pin: $inputs.pin
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      reference: $response.body#/data/reference
      chargeStatus: $response.body#/data/status
    onSuccess:
    - name: pinRequired
      type: goto
      stepId: submitPin
      criteria:
      - context: $response.body
        condition: $.data.status == "send_pin"
        type: jsonpath
    - name: noPinNeeded
      type: goto
      stepId: checkCharge
      criteria:
      - context: $response.body
        condition: $.data.status != "send_pin"
        type: jsonpath
  - stepId: submitPin
    description: Submit the customer's PIN against the ongoing charge reference.
    operationId: charge_submitPin
    requestBody:
      contentType: application/json
      payload:
        pin: $inputs.pin
        reference: $steps.createCharge.outputs.reference
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      status: $response.body#/data/status
  - stepId: checkCharge
    description: Check the pending charge to read its final status.
    operationId: charge_check
    parameters:
    - name: reference
      in: path
      value: $steps.createCharge.outputs.reference
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      finalStatus: $response.body#/data/status
  outputs:
    reference: $steps.createCharge.outputs.reference
    finalStatus: $steps.checkCharge.outputs.finalStatus