slack-pixiv-bot/slack-ruby-bot-0.4.4/examples/weather/weatherbot.rb

require 'slack-ruby-bot'

module WeatherBot
  class App < SlackRubyBot::App
  end

  class Weather < SlackRubyBot::Commands::Base
    match(/^How is the weather in (?<location>\w*)\?$/i) do |client, data, match|
      send_message client, data.channel, "The weather in #{match[:location]} is nice."
    end
  end
end

WeatherBot::App.instance.run