Microsoft Office Announce a New OneDrive File in a Teams Channel

arazzo: 1.0.1
info:
  title: Microsoft Office Announce a New OneDrive File in a Teams Channel
  summary: Find a file in the drive root, confirm its metadata, and post it to a Teams channel.
  description: >-
    A cross-service flow of the kind the unified Microsoft Graph surface exists
    to enable: OneDrive and Teams reached with one token in one sequence. The
    workflow lists the drive root, reads the target driveItem to confirm it is
    a file and capture its name and size, resolves the destination channel, and
    posts an announcement carrying the file details. 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: driveApi
  url: ../openapi/microsoft-office-drive-api-openapi.yml
  type: openapi
- name: teamsApi
  url: ../openapi/microsoft-office-teams-api-openapi.yml
  type: openapi
workflows:
- workflowId: drive-file-to-teams-notification
  summary: Notify a Teams channel that a OneDrive file is ready.
  description: >-
    Browses the drive root, verifies the target item carries a file facet,
    checks the destination channel exists in the team, and posts a message
    naming the file. Folders are not announced.
  inputs:
    type: object
    required:
    - itemId
    - teamId
    - channelId
    properties:
      itemId:
        type: string
        description: >-
          The id of the driveItem to announce. Resolve it from the root
          listing when only a file name is known.
      teamId:
        type: string
        description: The id of the team holding the destination channel.
      channelId:
        type: string
        description: The id of the channel the announcement is posted to.
  steps:
  - stepId: browseRoot
    description: >-
      List the items in the drive root so a file can be resolved by name and
      so the announcement reflects what is actually present in the drive.
    operationId: listMyDriveRootChildren
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      rootItems: $response.body#/value
      firstItemId: $response.body#/value/0/id
  - stepId: inspectItem
    description: >-
      Read the target driveItem to confirm it exists and carries a file facet,
      and to capture the name and size quoted in the announcement.
    operationId: getMyDriveItem
    parameters:
    - name: item_id
      in: path
      value: $inputs.itemId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      itemId: $response.body#/id
      itemName: $response.body#/name
      itemSize: $response.body#/size
      lastModifiedDateTime: $response.body#/lastModifiedDateTime
    onSuccess:
    - name: isFile
      type: goto
      stepId: resolveChannel
      criteria:
      - context: $response.body
        condition: $.file
        type: jsonpath
    - name: isFolder
      type: end
      criteria:
      - context: $response.body
        condition: $.folder
        type: jsonpath
  - stepId: resolveChannel
    description: >-
      List the team's channels to confirm the destination channel resolves
      before a message is posted against its id.
    operationId: listTeamChannels
    parameters:
    - name: team_id
      in: path
      value: $inputs.teamId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      channels: $response.body#/value
  - stepId: announceFile
    description: >-
      Post the announcement to the channel, naming the file and its size so
      readers know what landed without opening OneDrive first.
    operationId: sendChannelMessage
    parameters:
    - name: team_id
      in: path
      value: $inputs.teamId
    - name: channel_id
      in: path
      value: $inputs.channelId
    requestBody:
      contentType: application/json
      payload:
        body:
          contentType: html
          content: >-
            New file available in OneDrive:
            $steps.inspectItem.outputs.itemName
            ($steps.inspectItem.outputs.itemSize bytes), last modified
            $steps.inspectItem.outputs.lastModifiedDateTime.
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      announcementId: $response.body#/id
  outputs:
    announcedItemId: $steps.inspectItem.outputs.itemId
    announcedItemName: $steps.inspectItem.outputs.itemName
    announcementId: $steps.announceFile.outputs.announcementId