require 'telegram/bot'

token = '285576293:AAFROmHslT0mEqxswUwaYllhhXGIhEnQoCw'
Telegram::Bot::Client.run(token) do |bot|
  bot.listen do |message|
    case message.text
    when '/halo'
      bot.api.send_message(chat_id: message.chat.id, text: "Selamat Datang Kawan....")
    end
  end
end