kind: Workflow
trigger:

  kind: OnConversationStart
  id: my_workflow
  actions:

    - kind: HttpRequestAction
      id: http_request
      method: GET
      url: =Concatenate("https://api.example.test/items/", System.LastMessageText)
      headers:
        Accept: application/json
      response: Local.HttpResult
      responseHeaders: Local.HttpHeaders