Paystack Blacklist a Customer After a Dispute

arazzo: 1.0.1
info:
  title: Paystack Blacklist a Customer After a Dispute
  summary: List the disputes raised against a transaction, fetch the customer, then blacklist them and deactivate the card authorization.
  description: >-
    A fraud-response flow. Disputes raised against a flagged transaction are
    listed, the customer is fetched to confirm their code, the customer is
    blacklisted with a deny risk action, and the offending card authorization is
    deactivated so it can no longer be charged. 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: customerApi
  url: ../openapi/paystack-customer-api-openapi.yml
  type: openapi
- name: disputeApi
  url: ../openapi/paystack-dispute-api-openapi.yml
  type: openapi
workflows:
- workflowId: blacklist-customer-after-dispute
  summary: Investigate a disputed transaction and block the customer and card.
  description: >-
    Lists transaction disputes, fetches the customer, blacklists them, and
    deactivates the card authorization.
  inputs:
    type: object
    required:
    - transactionId
    - customerCode
    - authorization_code
    properties:
      transactionId:
        type: string
        description: Id of the transaction whose disputes are being reviewed.
      customerCode:
        type: string
        description: Code of the customer to blacklist.
      authorization_code:
        type: string
        description: Card authorization code to deactivate.
  steps:
  - stepId: listTransactionDisputes
    description: List the disputes raised against the flagged transaction.
    operationId: dispute_transaction
    parameters:
    - name: id
      in: path
      value: $inputs.transactionId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      disputes: $response.body#/data
  - stepId: fetchCustomer
    description: Fetch the customer to confirm their code before taking action.
    operationId: customer_fetch
    parameters:
    - name: code
      in: path
      value: $inputs.customerCode
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      customerEmail: $response.body#/data/email
  - stepId: blacklistCustomer
    description: Blacklist the customer by setting a deny risk action.
    operationId: customer_riskAction
    requestBody:
      contentType: application/json
      payload:
        customer: $inputs.customerCode
        risk_action: deny
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      riskAction: $response.body#/data/risk_action
  - stepId: deactivateAuthorization
    description: Deactivate the offending card authorization so it cannot be charged.
    operationId: customer_deactivateAuthorization
    requestBody:
      contentType: application/json
      payload:
        authorization_code: $inputs.authorization_code
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      deactivateMessage: $response.body#/message
  outputs:
    disputes: $steps.listTransactionDisputes.outputs.disputes
    riskAction: $steps.blacklistCustomer.outputs.riskAction
    deactivateMessage: $steps.deactivateAuthorization.outputs.deactivateMessage