Slack Announce and Archive a Channel

arazzo: 1.0.1
info:
  title: Slack Announce and Archive a Channel
  summary: Post a final notice to a channel and then archive it.
  description: >-
    A wind down pattern that closes out a channel cleanly. The workflow posts a
    final notice message explaining that the channel is being archived, then
    archives the channel so it is removed from active use while remaining
    searchable. 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: chatApi
  url: ../openapi/slack-chat-openapi.yml
  type: openapi
- name: conversationsApi
  url: ../openapi/slack-conversations-openapi.yml
  type: openapi
workflows:
- workflowId: archive-channel-announce
  summary: Post a final notice and then archive the channel.
  description: >-
    Posts a final notice message to a channel and then archives it.
  inputs:
    type: object
    required:
    - channel
    - finalNotice
    properties:
      channel:
        type: string
        description: The ID of the channel to announce and archive.
      finalNotice:
        type: string
        description: The final notice message to post before archiving.
  steps:
  - stepId: postFinalNotice
    description: >-
      Post the final notice message explaining the channel is being archived.
    operationId: postChatPostmessage
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        channel: $inputs.channel
        text: $inputs.finalNotice
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.ok == true
      type: jsonpath
    outputs:
      messageTs: $response.body#/ts
  - stepId: archiveChannel
    description: >-
      Archive the channel so it is removed from active use while remaining
      searchable.
    operationId: postConversationsArchive
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        channel: $inputs.channel
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.ok == true
      type: jsonpath
    outputs:
      archived: $response.body#/ok
  outputs:
    messageTs: $steps.postFinalNotice.outputs.messageTs
    archived: $steps.archiveChannel.outputs.archived