Oracle Integration Start a Process and Handle Its Task

arazzo: 1.0.1
info:
  title: Oracle Integration Start a Process and Handle Its Task
  summary: Start a structured process instance, locate the user task it generates, and act on that task.
  description: >-
    The end-to-end happy path for a structured process. The workflow confirms the
    process definition exists, creates a new process instance with an input
    payload, lists the user tasks to find the one belonging to the new instance,
    retrieves that task, and performs an action such as APPROVE on it. 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: processDefinitionsApi
  url: ../openapi/oracle-integration-process-definitions-api-openapi.yml
  type: openapi
- name: processInstancesApi
  url: ../openapi/oracle-integration-process-instances-api-openapi.yml
  type: openapi
- name: tasksApi
  url: ../openapi/oracle-integration-tasks-api-openapi.yml
  type: openapi
workflows:
- workflowId: start-process-and-handle-task
  summary: Create a process instance and act on the first task assigned to the current user.
  description: >-
    Verifies the process definition, creates an instance, lists tasks, retrieves
    the first task, and performs the supplied action on it.
  inputs:
    type: object
    required:
    - processDefId
    - title
    properties:
      processDefId:
        type: string
        description: The process definition identifier (e.g. default~OrderApproval~1.0).
      serviceName:
        type: string
        description: The service name that starts the process.
        default: OrderApprovalService
      title:
        type: string
        description: Title for the new process instance.
      payload:
        type: object
        description: Input payload for the process instance.
        default: {}
      action:
        type: string
        description: The action to perform on the resulting task (e.g. APPROVE, REJECT).
        default: APPROVE
      actionComment:
        type: string
        description: Comment recorded with the task action.
        default: Handled by automated workflow.
  steps:
  - stepId: getDefinition
    description: >-
      Retrieve metadata for the process definition to confirm it exists before
      starting an instance.
    operationId: getProcessMetadata
    parameters:
    - name: processDefId
      in: path
      value: $inputs.processDefId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      processDefId: $response.body#/processDefId
  - stepId: createInstance
    description: >-
      Create a new process instance from the definition with the supplied title
      and input payload.
    operationId: createProcessInstance
    requestBody:
      contentType: application/json
      payload:
        processDefId: $inputs.processDefId
        serviceName: $inputs.serviceName
        title: $inputs.title
        payload: $inputs.payload
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      processId: $response.body#/processId
      state: $response.body#/state
  - stepId: listTasks
    description: >-
      List user tasks so the task generated by the new process instance can be
      located.
    operationId: listTasks
    parameters:
    - name: limit
      in: query
      value: 25
    - name: offset
      in: query
      value: 0
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      firstTaskId: $response.body#/items/0/id
    onSuccess:
    - name: hasTask
      type: goto
      stepId: getTask
      criteria:
      - context: $response.body
        condition: $.items.length > 0
        type: jsonpath
    - name: noTask
      type: end
      criteria:
      - context: $response.body
        condition: $.items.length == 0
        type: jsonpath
  - stepId: getTask
    description: >-
      Retrieve the first task to confirm it is ASSIGNED before acting on it.
    operationId: getTask
    parameters:
    - name: id
      in: path
      value: $steps.listTasks.outputs.firstTaskId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      taskState: $response.body#/state
      taskTitle: $response.body#/title
  - stepId: performAction
    description: >-
      Perform the supplied action on the task, recording an accompanying comment.
    operationId: performTaskAction
    parameters:
    - name: id
      in: path
      value: $steps.listTasks.outputs.firstTaskId
    requestBody:
      contentType: application/json
      payload:
        action: $inputs.action
        comment: $inputs.actionComment
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      finalState: $response.body#/state
      outcome: $response.body#/outcome
  outputs:
    processId: $steps.createInstance.outputs.processId
    taskId: $steps.listTasks.outputs.firstTaskId
    finalState: $steps.performAction.outputs.finalState