Asana Attach a File to a New Task

arazzo: 1.0.1
info:
  title: Asana Attach a File to a New Task
  summary: Create a task and attach an external file URL to it as a reference.
  description: >-
    A reference-gathering flow. The workflow creates a task in a workspace and
    then attaches an external file to it by URL using the external attachment
    subtype, so the task carries its supporting material. Each request is written
    inline so the flow can be read and executed without opening the underlying
    OpenAPI description. The attachment is sent as multipart form data with the
    external url, as the create-attachment endpoint requires.
  version: 1.0.0
sourceDescriptions:
- name: tasksApi
  url: ../openapi/asana-tasks-api-openapi.yml
  type: openapi
- name: attachmentsApi
  url: ../openapi/asana-attachments-api-openapi.yml
  type: openapi
workflows:
- workflowId: attach-file-to-task
  summary: Create a task and attach an external file URL to it.
  description: >-
    Creates a task, then attaches an external file to it by URL.
  inputs:
    type: object
    required:
    - workspaceGid
    - taskName
    - attachmentName
    - attachmentUrl
    properties:
      workspaceGid:
        type: string
        description: Workspace gid the task belongs to.
      taskName:
        type: string
        description: Name of the task to create.
      attachmentName:
        type: string
        description: Display name of the external attachment.
      attachmentUrl:
        type: string
        description: The external URL to attach to the task.
  steps:
  - stepId: createTask
    description: Create the task in the workspace.
    operationId: createTask
    requestBody:
      contentType: application/json
      payload:
        data:
          name: $inputs.taskName
          workspace: $inputs.workspaceGid
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      taskGid: $response.body#/data/gid
  - stepId: attachFile
    description: Attach an external file to the task by URL.
    operationId: createAttachmentForObject
    requestBody:
      contentType: multipart/form-data
      payload:
        parent: $steps.createTask.outputs.taskGid
        resource_subtype: external
        name: $inputs.attachmentName
        url: $inputs.attachmentUrl
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      attachmentGid: $response.body#/data/gid
  outputs:
    taskGid: $steps.createTask.outputs.taskGid
    attachmentGid: $steps.attachFile.outputs.attachmentGid