Telegram API

As we know that Telegram is a messaging app identifies users by their mobile number. Fortunately, Telegram has its own API -Ruby has a wrapper gem for Telegram's Bot API called telegram-bot-ruby - which allows you to Integrate with other services, create custom tools, build single- and multiplayer games, build social services, do virtually anything else; Do you smell anything evil here?

• To install telegram-bot gem

  gem install telegram-bot-ruby
  

• Basic usage

As many APIs, you have to get a token to deal with your bot. Here a basic usage

require 'telegram/bot'

token = 'YOUR_TELEGRAM_BOT_API_TOKEN'

Telegram::Bot::Client.run(token) do |bot|
  bot.listen do |message|
    case message.text
    when '/start'
      bot.api.send_message(chat_id: message.chat.id, text: "Hello, #{message.from.first_name}")
    when '/stop'
      bot.api.send_message(chat_id: message.chat.id, text: "Bye, #{message.from.first_name}")
    end
  end
end

• Inline bots

If you got that evil smile from above example, you may thinking about interacting with your bots inline to call/@mention your bots and request more action from the bot(s).

require 'telegram/bot'

bot.listen do |message|
  case message
  when Telegram::Bot::Types::InlineQuery
    results = [
      Telegram::Bot::Types::InlineQueryResultArticle
        .new(id: 1, title: 'First article', message_text: 'Very interesting text goes here.'),
      Telegram::Bot::Types::InlineQueryResultArticle
        .new(id: 2, title: 'Second article', message_text: 'Another interesting text here.')
    ]
    bot.api.answer_inline_query(inline_query_id: message.id, results: results)
  when Telegram::Bot::Types::Message
    bot.api.send_message(chat_id: message.chat.id, text: "Hello, #{message.from.first_name}!")
  end
end

A good topic about Quickly Create a Telegram Bot in Ruby can be found here.

There are more usage and documentation for the gem and the API, and you can show us your evil code, and you can pull it in Rubyfu!