Merge File Storage Browse and Download a File

arazzo: 1.0.1
info:
  title: Merge File Storage Browse and Download a File
  summary: List files in a linked file storage account, read the first file's metadata, and download its contents.
  description: >-
    A file storage read pattern that walks from a folder listing to file
    contents. The workflow lists files in the linked account, retrieves the
    metadata for the first file returned, and then downloads that file's binary
    contents. 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: fileStorageApi
  url: ../openapi/merge-file-storage-api-openapi.yaml
  type: openapi
workflows:
- workflowId: browse-and-download
  summary: List files, read one file's metadata, and download its contents.
  description: >-
    Lists files on a linked account, retrieves the first file's metadata, and
    downloads that file.
  inputs:
    type: object
    required:
    - authorization
    - accountToken
    properties:
      authorization:
        type: string
        description: Production access token with the required "Bearer " prefix.
      accountToken:
        type: string
        description: The account token identifying the linked file storage end user.
      folderId:
        type: string
        description: Optional folder to scope the listing to.
      pageSize:
        type: integer
        description: Number of files to return per page (maximum 100).
  steps:
  - stepId: listFiles
    description: >-
      List files on the linked account, optionally scoped to a folder.
    operationPath: '{$sourceDescriptions.fileStorageApi.url}#/paths/~1filestorage~1v1~1files/get'
    parameters:
    - name: folder_id
      in: query
      value: $inputs.folderId
    - name: page_size
      in: query
      value: $inputs.pageSize
    - name: Authorization
      in: header
      value: $inputs.authorization
    - name: X-Account-Token
      in: header
      value: $inputs.accountToken
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.results.length > 0
      type: jsonpath
    outputs:
      files: $response.body#/results
      firstFileId: $response.body#/results/0/id
  - stepId: getFile
    description: >-
      Retrieve the metadata for the first file returned by the listing.
    operationPath: '{$sourceDescriptions.fileStorageApi.url}#/paths/~1filestorage~1v1~1files~1{id}/get'
    parameters:
    - name: id
      in: path
      value: $steps.listFiles.outputs.firstFileId
    - name: Authorization
      in: header
      value: $inputs.authorization
    - name: X-Account-Token
      in: header
      value: $inputs.accountToken
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      fileId: $response.body#/id
      fileName: $response.body#/name
      mimeType: $response.body#/mime_type
  - stepId: downloadFile
    description: >-
      Download the binary contents of the resolved file.
    operationPath: '{$sourceDescriptions.fileStorageApi.url}#/paths/~1filestorage~1v1~1files~1{id}~1download/get'
    parameters:
    - name: id
      in: path
      value: $steps.getFile.outputs.fileId
    - name: Authorization
      in: header
      value: $inputs.authorization
    - name: X-Account-Token
      in: header
      value: $inputs.accountToken
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      statusCode: $statusCode
  outputs:
    files: $steps.listFiles.outputs.files
    fileId: $steps.getFile.outputs.fileId
    fileName: $steps.getFile.outputs.fileName