Telegram_Bot.rb

Telegram_Bot.rb

#!/usr/bin/ruby
require 'telegram/bot'

$api_telegram = "" #Your bot API. You need to enter Telegram and ask Botfather to create a Bot. He will guide you.

Telegram::Bot::Client.run($api_telegram) do |bot|
    bot.listen do |message|
        #Messages. I use an expression to make it case insensitive.
        case message.text
        when /\/start/i
            begin
                bot.api.send_message(chat_id: message.chat.id, text: "Hello!")
            rescue
            end
        when /bye/i
            begin
                bot.api.send_message(chat_id: message.chat.id, text: "Bye then!")
            rescue
            end
        end
    end
end