```ruby
require "cuba"
require "rack/protection"

require_relative "lib/goban"
require_relative "lib/slack"

Cuba.define do
  def forbidden!
    res.status = 403
    halt res.finish
  end

  on post, "boards" do
    forbidden! unless req.params["token"] == ENV.fetch("SLACK_TOKEN")

    puts req.params.inspect

    board_url = Goban.create

    payload = {
      channel:    "#test-integrations",
      username:   "Goban",
      icon_emoji: ":black_circle:",
      text:       board_url
    }

    Slack.post(payload)
  end
end
```

Change bot message to include the name of the user who ran the command
user
```ruby
require "cuba"
require "rack/protection"

require_relative "lib/goban"
require_relative "lib/slack"

Cuba.define do
  def forbidden!
    res.status = 403
    halt res.finish
  end

  on post, "boards" do
    forbidden! unless req.params["token"] == ENV.fetch("SLACK_TOKEN")

    puts req.params.inspect

    board_url = Goban.create

    payload = {
      channel:    "#test-integrations",
      username:   "Goban",
      icon_emoji: ":black_circle:",
      text:       "#{req.params["user_name"]} started a new game: <#{board_url}>"
    }

    Slack.post(payload)
  end
end
```
assistant