YouTube Subscribe and Confirm

arazzo: 1.0.1
info:
  title: YouTube Subscribe and Confirm
  summary: Subscribe the authenticated user to a channel, then confirm by listing their subscriptions.
  description: >-
    A write-then-verify flow. It subscribes the authenticated user to a channel
    and then lists that user's subscriptions to confirm the new subscription is
    present. 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: subscriptionsApi
  url: ../openapi/youtube-subscriptions-api-openapi.yml
  type: openapi
workflows:
- workflowId: subscribe-and-confirm
  summary: Create a subscription and verify it by listing the user's subscriptions.
  description: >-
    Subscribes the authenticated user to a channel, then lists the user's own
    subscriptions to confirm the action.
  inputs:
    type: object
    required:
    - apiKey
    - channelId
    properties:
      apiKey:
        type: string
        description: The Google API key used to authorize each YouTube Data API request.
      channelId:
        type: string
        description: The id of the channel to subscribe to.
  steps:
  - stepId: subscribe
    description: Subscribe the authenticated user to the supplied channel.
    operationId: youtube.subscriptions.insert
    parameters:
    - name: part
      in: query
      value: snippet
    - name: key
      in: query
      value: $inputs.apiKey
    requestBody:
      contentType: application/json
      payload:
        snippet:
          resourceId:
            kind: youtube#channel
            channelId: $inputs.channelId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      subscriptionId: $response.body#/id
  - stepId: confirmSubscription
    description: List the authenticated user's subscriptions to confirm the new entry.
    operationId: youtube.subscriptions.list
    parameters:
    - name: part
      in: query
      value: snippet
    - name: mine
      in: query
      value: true
    - name: maxResults
      in: query
      value: 50
    - name: key
      in: query
      value: $inputs.apiKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      subscriptions: $response.body#/items
      totalResults: $response.body#/pageInfo/totalResults
  outputs:
    subscriptionId: $steps.subscribe.outputs.subscriptionId
    subscriptions: $steps.confirmSubscription.outputs.subscriptions