arazzo: 1.0.1
info:
  title: YouTube Update Video Metadata
  summary: Read a video's current snippet, then update its title, description, and category.
  description: >-
    A safe edit flow that reads before it writes. It retrieves the current video
    resource to confirm it exists and to capture its category, then updates the
    video's snippet with a new title, description, and category id. 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: youtubeDataApi
  url: ../openapi/youtube-data-api-openapi.yml
  type: openapi
workflows:
- workflowId: update-video-metadata
  summary: Fetch a video then patch its snippet metadata.
  description: >-
    Reads a video's current snippet and then updates the video resource with a
    new title, description, and category id.
  inputs:
    type: object
    required:
    - apiKey
    - videoId
    - title
    properties:
      apiKey:
        type: string
        description: The Google API key used to authorize each YouTube Data API request.
      videoId:
        type: string
        description: The id of the video to update.
      title:
        type: string
        description: The new title for the video.
      description:
        type: string
        description: The new description for the video.
        default: ""
      categoryId:
        type: string
        description: The numeric category id to assign to the video.
        default: "22"
  steps:
  - stepId: getVideo
    description: Read the video's current snippet to confirm it exists before updating.
    operationId: youtube.videos.list
    parameters:
    - name: part
      in: query
      value: snippet
    - name: id
      in: query
      value: $inputs.videoId
    - name: key
      in: query
      value: $inputs.apiKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      currentTitle: $response.body#/items/0/snippet/title
  - stepId: updateVideo
    description: Update the video's snippet with the new title, description, and category.
    operationId: youtube.videos.update
    parameters:
    - name: part
      in: query
      value: snippet
    - name: key
      in: query
      value: $inputs.apiKey
    requestBody:
      contentType: application/json
      payload:
        id: $inputs.videoId
        snippet:
          title: $inputs.title
          description: $inputs.description
          categoryId: $inputs.categoryId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      updatedTitle: $response.body#/snippet/title
  outputs:
    previousTitle: $steps.getVideo.outputs.currentTitle
    updatedTitle: $steps.updateVideo.outputs.updatedTitle