Livepeer Provision a Live Stream

arazzo: 1.0.1
info:
  title: Livepeer Provision a Live Stream
  summary: Create a live stream, confirm it exists, and resolve its playback info.
  description: >-
    The foundational Livepeer Studio livestreaming flow. It creates a new stream
    with a name and optional transcoding profiles, reads the stream back to
    confirm its ingest stream key and playback ID were assigned, and then
    resolves the playback info so the caller has everything needed to ingest
    (RTMP) and play back (HLS/WebRTC) the live stream. 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: playbackApi
  url: ../openapi/livepeer-playback-api-openapi.yml
  type: openapi
- name: streamApi
  url: ../openapi/livepeer-stream-api-openapi.yml
  type: openapi
workflows:
- workflowId: provision-live-stream
  summary: Create a stream then resolve its playback info.
  description: >-
    Creates a new live stream, retrieves the created stream to confirm the
    assigned stream key and playback ID, and finally fetches the playback info
    for that playback ID.
  inputs:
    type: object
    required:
    - authToken
    - name
    properties:
      authToken:
        type: string
        description: Livepeer API key used as a Bearer token.
      name:
        type: string
        description: Name of the stream to create.
      record:
        type: boolean
        description: Whether sessions of this stream should be recorded.
  steps:
  - stepId: createStream
    description: >-
      Create a new live stream. Livepeer assigns a stream key for ingest and a
      playback ID for playback.
    operationId: createStream
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.authToken
    requestBody:
      contentType: application/json
      payload:
        name: $inputs.name
        record: $inputs.record
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      streamId: $response.body#/id
      streamKey: $response.body#/streamKey
      playbackId: $response.body#/playbackId
  - stepId: getStream
    description: >-
      Read the stream back by ID to confirm it was created and to capture its
      current active state.
    operationId: getStream
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.authToken
    - name: id
      in: path
      value: $steps.createStream.outputs.streamId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      isActive: $response.body#/isActive
      confirmedPlaybackId: $response.body#/playbackId
  - stepId: getPlaybackInfo
    description: >-
      Resolve playback info for the stream's playback ID, returning the live
      playback sources (HLS, WebRTC).
    operationId: getPlaybackInfo
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.authToken
    - name: id
      in: path
      value: $steps.getStream.outputs.confirmedPlaybackId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      playbackType: $response.body#/type
      sources: $response.body#/meta/source
  outputs:
    streamId: $steps.createStream.outputs.streamId
    streamKey: $steps.createStream.outputs.streamKey
    playbackId: $steps.createStream.outputs.playbackId
    sources: $steps.getPlaybackInfo.outputs.sources