Add Telegram Bot API client

Gemfile

@@ -98,6 +98,12 @@ gem 'rack-attack', '~> 5.4'
 # Simple, efficient background processing for Ruby.
 gem 'sidekiq', '~> 5.2'
 
+# Library for building Telegram Bots with Rails integration.
+gem 'telegram-bot', '~> 0.14'
+
+# Virtus types for Telegram Bot API.
+gem 'telegram-bot-types', '~> 0.6'
+
 group :development, :test do
   # factory_bot provides a framework and DSL for defining and using factories.
   gem 'factory_bot_rails', '~> 4.10'

Gemfile.lock

@@ -50,6 +50,10 @@ GEM
     ast (2.4.0)
     autoprefixer-rails (9.4.2)
       execjs
+    axiom-types (0.1.1)
+      descendants_tracker (~> 0.0.4)
+      ice_nine (~> 0.11.0)
+      thread_safe (~> 0.3, >= 0.3.1)
     backports (3.11.4)
     bcrypt (3.1.12)
     bindex (0.5.0)
@@ -97,6 +101,8 @@ GEM
       json
     choice (0.2.0)
     coderay (1.1.2)
+    coercible (1.0.0)
+      descendants_tracker (~> 0.0.1)
     concurrent-ruby (1.1.3)
     connection_pool (2.2.2)
     coveralls (0.8.22)
@@ -129,6 +135,8 @@ GEM
     cucumber-tag_expressions (1.1.1)
     cucumber-wire (0.0.1)
     database_cleaner (1.7.0)
+    descendants_tracker (0.0.4)
+      thread_safe (~> 0.3, >= 0.3.1)
     devise (4.5.0)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -141,6 +149,7 @@ GEM
     docile (1.3.1)
     domain_name (0.5.20180417)
       unf (>= 0.0.5, < 1.0.0)
+    equalizer (0.0.11)
     erubi (1.7.1)
     execjs (2.7.0)
     factory_bot (4.11.1)
@@ -161,8 +170,10 @@ GEM
     hashie (3.5.7)
     http-cookie (1.0.3)
       domain_name (~> 0.5)
+    httpclient (2.8.3)
     i18n (1.1.1)
       concurrent-ruby (~> 1.0)
+    ice_nine (0.11.2)
     interactor (3.1.1)
     jaro_winkler (1.5.1)
     jquery-rails (4.3.3)
@@ -366,6 +377,12 @@ GEM
       net-ssh (>= 2.8.0)
     sshkit-interactive (0.3.0)
       sshkit (~> 1.12)
+    telegram-bot (0.14.1)
+      actionpack (>= 4.0, < 6.0)
+      activesupport (>= 4.0, < 6.0)
+      httpclient (~> 2.7)
+    telegram-bot-types (0.6.1)
+      virtus (~> 1.0)
     term-ansicolor (1.7.0)
       tins (~> 1.0)
     thor (0.19.4)
@@ -383,6 +400,11 @@ GEM
       unf_ext
     unf_ext (0.0.7.5)
     unicode-display_width (1.4.0)
+    virtus (1.0.5)
+      axiom-types (~> 0.1)
+      coercible (~> 1.0)
+      descendants_tracker (~> 0.0, >= 0.0.3)
+      equalizer (~> 0.0, >= 0.0.9)
     warden (1.2.8)
       rack (>= 2.0.6)
     web-console (3.7.0)
@@ -448,6 +470,8 @@ DEPENDENCIES
   simplecov (~> 0.16)
   spring
   spring-watcher-listen (~> 2.0.0)
+  telegram-bot (~> 0.14)
+  telegram-bot-types (~> 0.6)
   turbolinks (~> 5)
   uglifier (>= 1.3.0)
   web-console (>= 3.3.0)

config/initializers/telegram_bot.rb

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+# Be sure to restart your server when you modify this file.
+
+Telegram::Bot::Client.typed_response!