Azure Synapse Analytics Subscribe Trigger to Events

arazzo: 1.0.1
info:
  title: Azure Synapse Analytics Subscribe Trigger to Events
  summary: Subscribe an event trigger to its events and poll until the status settles.
  description: >-
    Event-based triggers must be subscribed to their source events before they
    can fire pipeline runs. This workflow subscribes the trigger to its events
    and then polls the event subscription status in a loop, branching back while
    the provisioning status is still in progress and ending once it settles to a
    terminal state. 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: triggerApi
  url: ../openapi/azure-synapse-analytics-trigger-openapi.yml
  type: openapi
workflows:
- workflowId: subscribe-trigger-to-events
  summary: Subscribe a trigger to events and poll its subscription status.
  description: >-
    Subscribes the trigger to its source events and loops on the event
    subscription status until it is no longer in a Provisioning state.
  inputs:
    type: object
    required:
    - apiVersion
    - triggerName
    properties:
      apiVersion:
        type: string
        description: The Synapse data plane API version (e.g. 2020-12-01).
      triggerName:
        type: string
        description: The name of the event trigger to subscribe.
  steps:
  - stepId: subscribeToEvents
    description: >-
      Subscribe the trigger to its source events, returning the initial
      subscription operation status.
    operationId: Trigger_SubscribeTriggerToEvents
    parameters:
    - name: api-version
      in: query
      value: $inputs.apiVersion
    - name: triggerName
      in: path
      value: $inputs.triggerName
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      initialStatus: $response.body#/status
  - stepId: pollSubscriptionStatus
    description: >-
      Poll the event subscription status. Loop back while it is still
      Provisioning, and end once it settles to Enabled, Disabled, or Unknown.
    operationId: Trigger_GetEventSubscriptionStatus
    parameters:
    - name: api-version
      in: query
      value: $inputs.apiVersion
    - name: triggerName
      in: path
      value: $inputs.triggerName
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/status
    onSuccess:
    - name: stillProvisioning
      type: goto
      stepId: pollSubscriptionStatus
      criteria:
      - context: $response.body
        condition: $.status == "Provisioning"
        type: jsonpath
    - name: settled
      type: end
      criteria:
      - context: $response.body
        condition: $.status != "Provisioning"
        type: jsonpath
  outputs:
    status: $steps.pollSubscriptionStatus.outputs.status