Pack format

name: charge-declines-cleanly
provider: examplepay
description: A charge is created, read back, then declines while the fault is armed.
definition:
  inputs:
    - name: amount
      type: number
      required: false
      default: 1250
  steps:
    - key: seed
      type: SEED_STATE
      config:
        resources:
          - type: /charges
            resourceKey: chg_probe
            attributes: { status: pending }
    - key: create
      type: REQUEST
      description: create a charge
      config:
        method: POST
        path: /charges
        body: { amount: "{{amount}}", currency: NGN }
      capture:
        chargeId: response.body$.id
      assertions:
        - target: response.status
          op: equals
          expected: 201
    - key: read-back
      type: REQUEST
      config:
        method: GET
        path: /charges/{{chargeId}}
      assertions:
        - target: response.status
          op: equals
          expected: 200
        - target: response.body
          path: $.status
          op: isOneOf
          expected: [pending, succeeded]
    - key: arm-decline
      type: INJECT_FAULT
      config: { method: POST, path: /charges, kind: error, status: 400, times: 1 }
    - key: declined
      type: REQUEST
      config:
        method: POST
        path: /charges
        body: { amount: "{{amount}}", currency: NGN }
      assertions:
        - target: response.status
          op: equals
          expected: 400
        - target: execution.faultApplied
          op: equals
          expected: true

- key: retried-with-one-key
  type: VERIFY_SEQUENCE
  config:
    requests:
      - { method: POST, path: /charges, headers: { idempotency-key: "<tokenized>" } }
      - { method: POST, path: /charges, minGapMs: 1000 }