Twilio Send an MMS and List Its Media

arazzo: 1.0.1
info:
  title: Twilio Send an MMS and List Its Media
  summary: Send an MMS with a media URL, fetch the message back, then list the media attached to it.
  description: >-
    A multimedia messaging pattern. The workflow sends an MMS that includes a
    media URL, fetches the message resource back to confirm it was created, and
    then lists the media sub-resources attached to the message so the stored
    media SIDs can be retrieved. 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: messagingApi
  url: ../openapi/twilio-messaging-openapi.yml
  type: openapi
workflows:
- workflowId: send-mms-and-list-media
  summary: Send an MMS and enumerate its stored media.
  description: >-
    Sends an MMS with a media URL, fetches the message, and lists the media
    attached to it.
  inputs:
    type: object
    required:
    - accountSid
    - to
    - from
    - mediaUrl
    properties:
      accountSid:
        type: string
        description: The Twilio account SID (starts with AC).
      to:
        type: string
        description: Recipient phone number in E.164 format.
      from:
        type: string
        description: Twilio phone number to send from.
      body:
        type: string
        description: Optional text body to accompany the media.
      mediaUrl:
        type: string
        description: URL of the media to include in the MMS.
  steps:
  - stepId: sendMms
    description: >-
      Send the MMS including the media URL.
    operationId: createMessage
    parameters:
    - name: AccountSid
      in: path
      value: $inputs.accountSid
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        To: $inputs.to
        From: $inputs.from
        Body: $inputs.body
        MediaUrl:
        - $inputs.mediaUrl
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      messageSid: $response.body#/sid
      numMedia: $response.body#/num_media
  - stepId: fetchMessage
    description: >-
      Fetch the message back to confirm it was created.
    operationId: fetchMessage
    parameters:
    - name: AccountSid
      in: path
      value: $inputs.accountSid
    - name: MessageSid
      in: path
      value: $steps.sendMms.outputs.messageSid
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/status
  - stepId: listMedia
    description: >-
      List the media sub-resources attached to the message.
    operationId: listMedia
    parameters:
    - name: AccountSid
      in: path
      value: $inputs.accountSid
    - name: MessageSid
      in: path
      value: $steps.sendMms.outputs.messageSid
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      mediaList: $response.body#/media_list
  outputs:
    messageSid: $steps.sendMms.outputs.messageSid
    mediaList: $steps.listMedia.outputs.mediaList