Microsoft Office 365 Respond to Invitation

arazzo: 1.0.1
info:
  title: Microsoft Office 365 Respond to Invitation
  summary: Read an event, then accept or decline it based on a desired response.
  description: >-
    Responds to a meeting invitation on the signed-in user's calendar. The
    workflow reads the event by id, then branches on the caller's desired
    response: it either accepts the event or declines it, sending a comment to
    the organizer in both cases. Both the accept and decline actions return 202
    Accepted. 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: graphApi
  url: ../openapi/microsoft-graph-api-openapi.yml
  type: openapi
workflows:
- workflowId: respond-to-invitation
  summary: Accept or decline a calendar event based on the requested response.
  description: >-
    Reads an event via GET /me/events/{event-id} (200), then branches: accepts
    via POST /me/events/{event-id}/accept (202) or declines via POST
    /me/events/{event-id}/decline (202).
  inputs:
    type: object
    required:
    - eventId
    - response
    properties:
      eventId:
        type: string
        description: The id of the event to respond to.
      response:
        type: string
        description: The desired response, either "accept" or "decline".
      comment:
        type: string
        description: An optional comment to include in the response to the organizer.
  steps:
  - stepId: readEvent
    description: >-
      Read the event by id to confirm it exists before responding, and decide
      which branch to take based on the requested response.
    operationId: getEvent
    parameters:
    - name: event-id
      in: path
      value: $inputs.eventId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      subject: $response.body#/subject
    onSuccess:
    - name: chooseAccept
      type: goto
      stepId: acceptEvent
      criteria:
      - condition: $inputs.response == "accept"
    - name: chooseDecline
      type: goto
      stepId: declineEvent
      criteria:
      - condition: $inputs.response == "decline"
  - stepId: acceptEvent
    description: >-
      Accept the event and send a response to the organizer. Returns 202
      Accepted.
    operationId: acceptEvent
    parameters:
    - name: event-id
      in: path
      value: $inputs.eventId
    requestBody:
      contentType: application/json
      payload:
        comment: $inputs.comment
        sendResponse: true
    successCriteria:
    - condition: $statusCode == 202
    outputs:
      outcome: accepted
    onSuccess:
    - name: done
      type: end
  - stepId: declineEvent
    description: >-
      Decline the event and send a response to the organizer. Returns 202
      Accepted.
    operationId: declineEvent
    parameters:
    - name: event-id
      in: path
      value: $inputs.eventId
    requestBody:
      contentType: application/json
      payload:
        comment: $inputs.comment
        sendResponse: true
    successCriteria:
    - condition: $statusCode == 202
    outputs:
      outcome: declined
  outputs:
    eventId: $inputs.eventId
    acceptedOutcome: $steps.acceptEvent.outputs.outcome
    declinedOutcome: $steps.declineEvent.outputs.outcome