Microsoft Planner Complete My First Assigned Task

arazzo: 1.0.1
info:
  title: Microsoft Planner Complete My First Assigned Task
  summary: List tasks assigned to the signed-in user and, if any exist, mark the first one complete.
  description: >-
    A personal productivity flow that lists the tasks assigned to the signed-in
    user, then branches: when the user has at least one assigned task it reads that
    task for its ETag and patches it to 100 percent complete using an If-Match
    header, and when the user has no assigned tasks it ends without making any
    change. Every request is spelled out inline so the flow can be read and
    executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: plannerApi
  url: ../openapi/microsoft-planner-openapi.yml
  type: openapi
workflows:
- workflowId: complete-my-first-task
  summary: List the current user's tasks and complete the first one if present.
  description: >-
    Chains listMyTasks, getTask, and updateTask with a branch on whether the user
    has any assigned tasks, carrying the first task id and ETag forward.
  inputs:
    type: object
    properties:
      placeholder:
        type: string
        description: >-
          Unused placeholder; this workflow operates entirely on the signed-in
          user's context and needs no inputs.
  steps:
  - stepId: listMyTasks
    description: >-
      List the tasks assigned to the signed-in user and branch on whether the
      collection contains any tasks.
    operationId: listMyTasks
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      tasks: $response.body#/value
      firstTaskId: $response.body#/value/0/id
    onSuccess:
    - name: hasTasks
      type: goto
      stepId: getTask
      criteria:
      - context: $response.body
        condition: $.value.length > 0
        type: jsonpath
    - name: noTasks
      type: end
      criteria:
      - context: $response.body
        condition: $.value.length == 0
        type: jsonpath
  - stepId: getTask
    description: >-
      Read the first assigned task to capture its current ETag for the If-Match
      header used by the completion patch.
    operationId: getTask
    parameters:
    - name: task-id
      in: path
      value: $steps.listMyTasks.outputs.firstTaskId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      taskEtag: $response.body#/@odata.etag
  - stepId: updateTask
    description: >-
      Patch the first assigned task to 100 percent complete. The If-Match header
      carries the task ETag. Planner returns 200 with the updated task.
    operationId: updateTask
    parameters:
    - name: task-id
      in: path
      value: $steps.listMyTasks.outputs.firstTaskId
    - name: If-Match
      in: header
      value: $steps.getTask.outputs.taskEtag
    requestBody:
      contentType: application/json
      payload:
        percentComplete: 100
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      completedDateTime: $response.body#/completedDateTime
  outputs:
    completedTaskId: $steps.listMyTasks.outputs.firstTaskId
    completedDateTime: $steps.updateTask.outputs.completedDateTime