Mailchimp Create Audience and Add First Member

arazzo: 1.0.1
info:
  title: Mailchimp Create Audience and Add First Member
  summary: Create a new audience (list) and subscribe an initial member to it.
  description: >-
    Stands up a brand new Mailchimp audience with the required contact and
    campaign default settings, then immediately subscribes a first member to
    the freshly created list. The list id returned by the create step is passed
    straight into the add-member step so the audience and its first contact are
    provisioned in a single chained flow. Authentication uses HTTP Basic auth
    with any username and your Mailchimp API key as the password.
  version: 1.0.0
sourceDescriptions:
- name: listsApi
  url: ../openapi/mailchimp-lists-api-openapi.yml
  type: openapi
workflows:
- workflowId: create-audience-add-member
  summary: Create an audience then subscribe an initial member.
  description: >-
    Creates a Mailchimp list using the supplied name, contact, permission
    reminder and campaign defaults, then adds the first subscriber using the
    returned list id.
  inputs:
    type: object
    required:
    - name
    - contact
    - permissionReminder
    - campaignDefaults
    - emailAddress
    properties:
      name:
        type: string
        description: The name of the new audience/list.
      contact:
        type: object
        description: Contact information shown in campaign footers (company, address1, city, country required).
      permissionReminder:
        type: string
        description: The permission reminder text for the list.
      emailTypeOption:
        type: boolean
        description: Whether the list supports multiple email type preferences.
        default: false
      campaignDefaults:
        type: object
        description: Default from_name, from_email, subject, and language for campaigns.
      emailAddress:
        type: string
        description: Email address of the first subscriber to add.
      status:
        type: string
        description: Subscription status for the new member (subscribed, unsubscribed, pending, etc.).
        default: subscribed
      mergeFields:
        type: object
        description: Optional merge field values keyed by merge tag (e.g. FNAME, LNAME).
  steps:
  - stepId: createAudience
    description: >-
      Create a new Mailchimp audience with the required contact, permission
      reminder, email type option, and campaign default settings.
    operationId: postLists
    requestBody:
      contentType: application/json
      payload:
        name: $inputs.name
        contact: $inputs.contact
        permission_reminder: $inputs.permissionReminder
        email_type_option: $inputs.emailTypeOption
        campaign_defaults: $inputs.campaignDefaults
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      listId: $response.body#/id
      memberCount: $response.body#/stats/member_count
  - stepId: addFirstMember
    description: >-
      Subscribe the first member to the newly created audience using the list
      id returned by the create step.
    operationId: postListsIdMembers
    parameters:
    - name: list_id
      in: path
      value: $steps.createAudience.outputs.listId
    requestBody:
      contentType: application/json
      payload:
        email_address: $inputs.emailAddress
        status: $inputs.status
        merge_fields: $inputs.mergeFields
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      memberId: $response.body#/id
      memberStatus: $response.body#/status
  outputs:
    listId: $steps.createAudience.outputs.listId
    memberId: $steps.addFirstMember.outputs.memberId