Slack Remove a Member from a Channel and Log It

arazzo: 1.0.1
info:
  title: Slack Remove a Member from a Channel and Log It
  summary: Resolve a user by email, remove them from a channel, and log the change.
  description: >-
    A membership cleanup pattern that removes a person from a channel and keeps
    an audit trail. The workflow resolves the email to a Slack user ID, removes
    that user from the target channel, and posts a log message into an audit
    channel recording who was removed. 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: usersApi
  url: ../openapi/slack-users-openapi.yml
  type: openapi
- name: conversationsApi
  url: ../openapi/slack-conversations-openapi.yml
  type: openapi
- name: chatApi
  url: ../openapi/slack-chat-openapi.yml
  type: openapi
workflows:
- workflowId: remove-member-announce
  summary: Resolve an email, remove the user from a channel, and log the change.
  description: >-
    Looks up a user by email, removes them from a channel, and posts a log
    message into an audit channel.
  inputs:
    type: object
    required:
    - email
    - channel
    - auditChannel
    - logText
    properties:
      email:
        type: string
        description: The email address of the user to remove.
      channel:
        type: string
        description: The channel ID to remove the user from.
      auditChannel:
        type: string
        description: The channel ID to post the audit log message into.
      logText:
        type: string
        description: The audit log message text.
  steps:
  - stepId: lookupUser
    description: >-
      Resolve the supplied email address to a Slack user ID.
    operationId: getUsersLookupbyemail
    parameters:
    - name: email
      in: query
      value: $inputs.email
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.ok == true
      type: jsonpath
    outputs:
      userId: $response.body#/user/id
  - stepId: removeUser
    description: >-
      Remove the resolved user from the target channel.
    operationId: postConversationsKick
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        channel: $inputs.channel
        user: $steps.lookupUser.outputs.userId
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.ok == true
      type: jsonpath
    outputs:
      removed: $response.body#/ok
  - stepId: logChange
    description: >-
      Post a log message into the audit channel recording the removal.
    operationId: postChatPostmessage
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        channel: $inputs.auditChannel
        text: $inputs.logText
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.ok == true
      type: jsonpath
    outputs:
      messageTs: $response.body#/ts
  outputs:
    userId: $steps.lookupUser.outputs.userId
    removed: $steps.removeUser.outputs.removed
    messageTs: $steps.logChange.outputs.messageTs