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https://github.com/atipugin/telegram-bot-ruby

Ruby wrapper for Telegram's Bot API
https://github.com/atipugin/telegram-bot-ruby

ruby telegram telegram-bot

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Ruby wrapper for Telegram's Bot API

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# telegram-bot-ruby



Ruby wrapper for [Telegram's Bot API](https://core.telegram.org/bots/api).



[![Gem Version](https://badge.fury.io/rb/telegram-bot-ruby.svg)](http://badge.fury.io/rb/telegram-bot-ruby)

[![Build Status](https://github.com/atipugin/telegram-bot-ruby/actions/workflows/ci.yml/badge.svg)](https://github.com/atipugin/telegram-bot-ruby/actions)

[![Maintainability](https://api.codeclimate.com/v1/badges/7e61fbf5bec86e118fb1/maintainability)](https://codeclimate.com/github/atipugin/telegram-bot-ruby/maintainability)

[![Say Thanks!](https://img.shields.io/badge/Say%20Thanks!-🦉-1EAEDB.svg)](https://saythanks.io/to/atipugin)



## 🚧 Upgrading to 1.0



Since v1.0 `telegram-bot-ruby` uses [`dry-struct`](https://github.com/dry-rb/dry-struct)

instead of [`virtus`](https://github.com/solnic/virtus).

This means that type objects are now immutable and you can't change them after initialization:



```ruby

# This won't work

kb = Telegram::Bot::Types::ReplyKeyboardRemove.new

kb.remove_keyboard = true



# You have to set attributes in constructor instead

kb = Telegram::Bot::Types::ReplyKeyboardRemove.new(remove_keyboard: true)

```



Please make sure it doesn't break your existing code before upgrading to 1.0.



## Installation



Add following line to your Gemfile:



```ruby

gem 'telegram-bot-ruby', '~> 2.1'

```



And then execute:



```shell

bundle

```



Or install it system-wide:



```shell

gem install telegram-bot-ruby

```



## Usage



First things first, you need to [obtain a token](https://core.telegram.org/bots#6-botfather) for your bot.

Then create your Telegram bot like this:



```ruby

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

```



Note that `bot.api` object implements

[Telegram Bot API methods](https://core.telegram.org/bots/api#available-methods) as is.

So you can invoke any method inside the block without any problems.

All methods are available in both *snake_case* and *camelCase* notations.



If you need to start a bot in development mode you have to pass `environment: :test`:



```ruby

Telegram::Bot::Client.run(token, environment: :test) do |bot|

  # ...

end

```



Same thing about `message` object: it implements [Message](https://core.telegram.org/bots/api#message) spec,

so you always know what to expect from it.



To gracefully stop the bot, for example by `INT` signal (Ctrl-C), call the `bot.stop` method:



```ruby

bot = Telegram::Bot::Client.new(token)



Signal.trap('INT') do

  bot.stop

end



bot.listen do |message|

  # it will be in an infinity loop until `bot.stop` command

  # (with a small delay for the current `fetch_updates` request)

end

```



## Webhooks



If you are going to use [webhooks](https://core.telegram.org/bots/api#setwebhook)

instead of [long polling](https://core.telegram.org/bots/api#getupdates),

you need to implement your own webhook callbacks server.

Take a look at [this repo](https://github.com/solyaris/BOTServer) as an example.



## Proxy



As some countries block access to Telegram, you can set up your own proxy and use it to access Telegram API.

In this case you need to configure API URL:



```ruby

Telegram::Bot::Client.run(token, url: 'https://proxy.example.com') do |bot|

  # ...

end

```



## Custom keyboards



You can use your own [custom keyboards](https://core.telegram.org/bots#keyboards).

Here is an example:



```ruby

bot.listen do |message|

  case message.text

  when '/start'

    question = 'London is a capital of which country?'

    # See more: https://core.telegram.org/bots/api#replykeyboardmarkup

    answers =

        Telegram::Bot::Types::ReplyKeyboardMarkup.new(

          keyboard: [

            [{ text: 'A' }, { text: 'B' }],

            [{ text: 'C' }, { text: 'D' }]

          ],

          one_time_keyboard: true

        )

    bot.api.send_message(chat_id: message.chat.id, text: question, reply_markup: answers)

  when '/stop'

    # See more: https://core.telegram.org/bots/api#replykeyboardremove

    kb = Telegram::Bot::Types::ReplyKeyboardRemove.new(remove_keyboard: true)

    bot.api.send_message(chat_id: message.chat.id, text: 'Sorry to see you go :(', reply_markup: kb)

  end

end

```



Furthermore, you can ask user to share location or phone number using `KeyboardButton`:



```ruby

bot.listen do |message|

  kb = [[

    Telegram::Bot::Types::KeyboardButton.new(text: 'Give me your phone number', request_contact: true),

    Telegram::Bot::Types::KeyboardButton.new(text: 'Show me your location', request_location: true)

  ]]

  markup = Telegram::Bot::Types::ReplyKeyboardMarkup.new(keyboard: kb)

  bot.api.send_message(chat_id: message.chat.id, text: 'Hey!', reply_markup: markup)

end

```



## Inline keyboards



[Bot API 2.0](https://core.telegram.org/bots/2-0-intro) brought us new inline keyboards.

Example:



```ruby

bot.listen do |message|

  case message

  when Telegram::Bot::Types::CallbackQuery

    # Here you can handle your callbacks from inline buttons

    if message.data == 'touch'

      bot.api.send_message(chat_id: message.from.id, text: "Don't touch me!")

    end

  when Telegram::Bot::Types::Message

    kb = [[

      Telegram::Bot::Types::InlineKeyboardButton.new(text: 'Go to Google', url: 'https://google.com'),

      Telegram::Bot::Types::InlineKeyboardButton.new(text: 'Touch me', callback_data: 'touch'),

      Telegram::Bot::Types::InlineKeyboardButton.new(text: 'Switch to inline', switch_inline_query: 'some text')

    ]]

    markup = Telegram::Bot::Types::InlineKeyboardMarkup.new(inline_keyboard: kb)

    bot.api.send_message(chat_id: message.chat.id, text: 'Make a choice', reply_markup: markup)

  end

end

```



## Inline bots



If you are going to create [inline bot](https://core.telegram.org/bots/inline), check the example below:



```ruby

bot.listen do |message|

  case message

  when Telegram::Bot::Types::InlineQuery

    results = [

      ['1', 'First article', 'Very interesting text goes here.'],

      ['2', 'Second article', 'Another interesting text here.']

    ].map do |arr|

      Telegram::Bot::Types::InlineQueryResultArticle.new(

        id: arr[0],

        title: arr[1],

        input_message_content: Telegram::Bot::Types::InputTextMessageContent.new(message_text: arr[2])

      )

    end



    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

```



Now, with `inline` mode enabled, your `message` object can be an instance of

[Message](https://core.telegram.org/bots/api#message),

[InlineQuery](https://core.telegram.org/bots/api#inlinequery) or

[ChosenInlineResult](https://core.telegram.org/bots/api#choseninlineresult).

That's why you need to check type of each message and decide how to handle it.



Using `answer_inline_query` you can send query results to user.

`results` field must be an array of [query result objects](https://core.telegram.org/bots/api#inlinequeryresult).



## File upload



Your bot can even upload files

([photos](https://core.telegram.org/bots/api#sendphoto),

[audio](https://core.telegram.org/bots/api#sendaudio),

[documents](https://core.telegram.org/bots/api#senddocument),

[stickers](https://core.telegram.org/bots/api#sendsticker),

[video](https://core.telegram.org/bots/api#sendvideo))

to Telegram servers.

Just like this:



```ruby

bot.listen do |message|

  case message.text

  when '/photo'

    path_to_photo = File.expand_path('~/Desktop/jennifer.jpg')

    bot.api.send_photo(chat_id: message.chat.id, photo: Faraday::UploadIO.new(path_to_photo, 'image/jpeg'))

  end

end

```



## Logging



By default, bot doesn't log anything (uses `NullLoger`).

You can change this behavior and provide your own logger class.

See example below:



```ruby

Telegram::Bot::Client.run(token, logger: Logger.new($stderr)) do |bot|

  bot.logger.info('Bot has been started')

  bot.listen do |message|

    # ...

  end

end

```



## Connection adapters



Since version `0.5.0` we rely on [faraday](https://github.com/lostisland/faraday) under the hood.

You can use any of supported adapters (for example, `net/http/persistent`):



```ruby

require 'net/http/persistent'



Telegram::Bot.configure do |config|

  config.adapter = :net_http_persistent

end

```



## Boilerplates



If you don't know how to setup database for your bot or how to use it with different languages

here are some boilerplates which can help you to start faster:



- [Ruby Telegram Bot boilerplate](https://github.com/telegram-bots/ruby-telegram-bot-boilerplate)



## Contributing



1. Fork it.

2. Create your feature branch (`git checkout -b my-new-feature`).

3. Commit your changes (`git commit -am 'Add some feature'`).

4. Push to the branch (`git push origin my-new-feature`).

5. Create a new Pull Request.