Shopify Register a Webhook Subscription

arazzo: 1.0.1
info:
  title: Shopify Register a Webhook Subscription
  summary: Create a webhook subscription for a topic, then read it back to confirm registration.
  description: >-
    Wires up an event subscription so an app receives real-time notifications.
    The workflow creates a webhook subscription for a topic and callback
    address, then reads the subscription back so the caller can confirm the
    topic, address, and API version that Shopify recorded. 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: shopifyWebhooksApi
  url: ../openapi/shopify-webhooks-api-openapi.yml
  type: openapi
workflows:
- workflowId: register-webhook
  summary: Create a webhook subscription and confirm it by reading it back.
  description: >-
    Creates a webhook subscription for the supplied topic and callback address,
    then retrieves it to confirm the registration.
  inputs:
    type: object
    required:
    - topic
    - address
    properties:
      topic:
        type: string
        description: The event topic to subscribe to (e.g. "orders/create").
      address:
        type: string
        description: The HTTPS callback URL Shopify will POST events to.
      format:
        type: string
        description: Payload format, json or xml.
        default: json
  steps:
  - stepId: createWebhook
    description: >-
      Create the webhook subscription so Shopify will POST the topic's events to
      the supplied callback address.
    operationId: createWebhookSubscription
    requestBody:
      contentType: application/json
      payload:
        webhook:
          topic: $inputs.topic
          address: $inputs.address
          format: $inputs.format
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      webhookId: $response.body#/webhook/id
  - stepId: getWebhook
    description: >-
      Read the webhook subscription back to confirm the recorded topic, address,
      and API version.
    operationId: getWebhookSubscription
    parameters:
    - name: webhook_id
      in: path
      value: $steps.createWebhook.outputs.webhookId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      topic: $response.body#/webhook/topic
      address: $response.body#/webhook/address
      apiVersion: $response.body#/webhook/api_version
      webhook: $response.body#/webhook
  outputs:
    webhookId: $steps.createWebhook.outputs.webhookId
    topic: $steps.getWebhook.outputs.topic
    webhook: $steps.getWebhook.outputs.webhook