Last.fm Album Genre Profile

arazzo: 1.0.1
info:
  title: Last.fm Album Genre Profile
  summary: Search for an album, resolve its full info and tracklist, then surface the community tags that define its genre.
  description: >-
    A cataloging flow that turns an album query into a genre-labeled profile. It
    searches the catalog for an album, resolves the best match's full info and
    tracklist, and then pulls the top community tags applied to the album so it
    can be filed under the right genres. Each request is written inline,
    including the required api_key and the format=json selector, so the chain is
    self-contained and replayable without the OpenAPI source.
  version: 1.0.0
sourceDescriptions:
- name: albumApi
  url: ../openapi/lastfm-album-api-openapi.yml
  type: openapi
workflows:
- workflowId: album-genre-profile
  summary: Resolve a searched album into a full profile plus its defining community tags.
  description: >-
    Searches for an album, resolves the best match's info and tracklist, and
    pulls its top community tags.
  inputs:
    type: object
    required:
    - apiKey
    - album
    properties:
      apiKey:
        type: string
        description: Your Last.fm API key.
      album:
        type: string
        description: The album name to search for.
  steps:
  - stepId: searchAlbum
    description: >-
      Search the catalog for albums matching the supplied name, sorted by
      relevance.
    operationId: albumSearch
    parameters:
    - name: api_key
      in: query
      value: $inputs.apiKey
    - name: format
      in: query
      value: json
    - name: album
      in: query
      value: $inputs.album
    - name: limit
      in: query
      value: 5
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      matchName: $response.body#/results/albummatches/album/0/name
      matchArtist: $response.body#/results/albummatches/album/0/artist
  - stepId: albumInfo
    description: >-
      Resolve the best matching album's full metadata and tracklist.
    operationId: albumGetInfo
    parameters:
    - name: api_key
      in: query
      value: $inputs.apiKey
    - name: format
      in: query
      value: json
    - name: artist
      in: query
      value: $steps.searchAlbum.outputs.matchArtist
    - name: album
      in: query
      value: $steps.searchAlbum.outputs.matchName
    - name: autocorrect
      in: query
      value: 1
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      albumName: $response.body#/album/name
      albumArtist: $response.body#/album/artist
      albumUrl: $response.body#/album/url
      tracklist: $response.body#/album/tracks/track
  - stepId: albumTopTags
    description: >-
      Pull the top community tags applied to the album to define its genre.
    operationId: albumGetTopTags
    parameters:
    - name: api_key
      in: query
      value: $inputs.apiKey
    - name: format
      in: query
      value: json
    - name: artist
      in: query
      value: $steps.albumInfo.outputs.albumArtist
    - name: album
      in: query
      value: $steps.albumInfo.outputs.albumName
    - name: autocorrect
      in: query
      value: 1
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      topTags: $response.body#/toptags/tag
      topTagName: $response.body#/toptags/tag/0/name
  outputs:
    albumName: $steps.albumInfo.outputs.albumName
    albumArtist: $steps.albumInfo.outputs.albumArtist
    albumUrl: $steps.albumInfo.outputs.albumUrl
    tracklist: $steps.albumInfo.outputs.tracklist
    topTags: $steps.albumTopTags.outputs.topTags