Dolby OptiView Provision and Start a Channel

arazzo: 1.0.1
info:
  title: Dolby OptiView Provision and Start a Channel
  summary: Create a THEOlive channel, start it, and poll until it is live and playing.
  description: >-
    The foundational live-streaming lifecycle for Dolby OptiView THEOlive.
    The workflow creates a channel, issues the start command that boots every
    connected engine, and then poll-loops the channel resource until its
    documented status reaches a terminal live state (playing) or an error.
    THEOlive channel startup is asynchronous — engines move through deploying,
    starting, waiting and ingesting states before reaching playing — so this
    flow mirrors the async-job poll pattern the media APIs use. Every step
    inlines its Authorization header and request body so the flow can be read
    and executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: channelsApi
  url: ../openapi/dolby-io-channels-api-openapi.yml
  type: openapi
workflows:
- workflowId: provision-and-start-channel
  summary: Create a channel, start it, and wait until it reaches the playing state.
  description: >-
    Creates a new THEOlive channel, fires the start command, then repeatedly
    reads the channel until its status settles on playing (success) or error
    (failure).
  inputs:
    type: object
    required:
    - authorization
    - name
    properties:
      authorization:
        type: string
        description: HTTP Basic Authorization header value (e.g. "Basic <base64 user:pass>").
      name:
        type: string
        description: Human-readable name for the new channel.
      externalId:
        type: string
        description: Optional external identifier to correlate the channel with your system.
      timeout:
        type: number
        description: Channel idle timeout in seconds. Pass 0 to never stop.
  steps:
  - stepId: createChannel
    description: >-
      Create the channel. The response returns the channel id and its initial
      status (typically stopped) under data.
    operationId: create-channel
    parameters:
    - name: Authorization
      in: header
      value: $inputs.authorization
    requestBody:
      contentType: application/json
      payload:
        name: $inputs.name
        externalId: $inputs.externalId
        timeout: $inputs.timeout
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      channelId: $response.body#/data/id
      initialStatus: $response.body#/data/status
  - stepId: startChannel
    description: >-
      Start the channel, which boots all connected engines. Returns 204 No
      Content on success.
    operationId: start-channel
    parameters:
    - name: id
      in: path
      value: $steps.createChannel.outputs.channelId
    - name: Authorization
      in: header
      value: $inputs.authorization
    successCriteria:
    - condition: $statusCode == 204
  - stepId: pollChannelStatus
    description: >-
      Read the channel and inspect its status. The documented status enum
      includes deploying, starting, waiting, ingesting and playing. Loop back
      until the channel is playing or has errored.
    operationId: get-channel
    parameters:
    - name: id
      in: path
      value: $steps.createChannel.outputs.channelId
    - name: Authorization
      in: header
      value: $inputs.authorization
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/data/status
    onSuccess:
    - name: live
      type: end
      criteria:
      - context: $response.body
        condition: $.data.status == "playing"
        type: jsonpath
    - name: failed
      type: end
      criteria:
      - context: $response.body
        condition: $.data.status == "error"
        type: jsonpath
    - name: keepPolling
      type: goto
      stepId: pollChannelStatus
      criteria:
      - context: $response.body
        condition: $.data.status != "playing" && $.data.status != "error"
        type: jsonpath
  outputs:
    channelId: $steps.createChannel.outputs.channelId
    finalStatus: $steps.pollChannelStatus.outputs.status