Sendbird Onboard a User and Start a Group Channel

arazzo: 1.0.1
info:
  title: Sendbird Onboard a User and Start a Group Channel
  summary: Create a user, open a group channel for them, and post a welcome message.
  description: >-
    The canonical first-run flow for a new Sendbird member. It registers a user
    with a nickname and profile image, creates a group channel that includes
    that user, and sends an admin welcome message into the channel so the member
    has something waiting on first login. 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: sendbirdApi
  url: ../openapi/sendbird-platform-openapi.yml
  type: openapi
workflows:
- workflowId: onboard-user-and-start-channel
  summary: Register a new user and seed a welcome group channel.
  description: >-
    Creates a user, then a group channel containing that user, then posts an
    admin welcome message addressed to the new member.
  inputs:
    type: object
    required:
    - apiToken
    - userId
    - nickname
    - profileUrl
    properties:
      apiToken:
        type: string
        description: Sendbird Api-Token from the dashboard.
      userId:
        type: string
        description: Unique user ID to register.
      nickname:
        type: string
        description: Display nickname for the new user.
      profileUrl:
        type: string
        description: URL of the user's profile image.
      channelName:
        type: string
        description: Name for the welcome group channel.
        default: Welcome
      welcomeMessage:
        type: string
        description: Admin message text posted to the new channel.
        default: Welcome to the community!
  steps:
  - stepId: createUser
    description: Register the new user with a nickname and profile image.
    operationId: createUser
    parameters:
    - name: Api-Token
      in: header
      value: $inputs.apiToken
    requestBody:
      contentType: application/json
      payload:
        user_id: $inputs.userId
        nickname: $inputs.nickname
        profile_url: $inputs.profileUrl
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      createdUserId: $response.body#/user_id
  - stepId: createChannel
    description: Create a group channel that includes the freshly created user.
    operationId: createGroupChannel
    parameters:
    - name: Api-Token
      in: header
      value: $inputs.apiToken
    requestBody:
      contentType: application/json
      payload:
        name: $inputs.channelName
        user_ids:
        - $steps.createUser.outputs.createdUserId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      channelUrl: $response.body#/channel_url
  - stepId: sendWelcome
    description: Post an admin welcome message into the new channel.
    operationId: sendMessage
    parameters:
    - name: Api-Token
      in: header
      value: $inputs.apiToken
    - name: channel_url
      in: path
      value: $steps.createChannel.outputs.channelUrl
    requestBody:
      contentType: application/json
      payload:
        message_type: ADMM
        user_id: $steps.createUser.outputs.createdUserId
        message: $inputs.welcomeMessage
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      messageId: $response.body#/message_id
  outputs:
    userId: $steps.createUser.outputs.createdUserId
    channelUrl: $steps.createChannel.outputs.channelUrl
    welcomeMessageId: $steps.sendWelcome.outputs.messageId