Ability to use type-castion with telegram-bot-types

lib/telegram/bot/client/typed_response.rb

@@ -0,0 +1,38 @@
+module Telegram
+  module Bot
+    class Client
+      # Actions with type-casted results. Install `telegram-bot-types` gem first.
+      module TypedResponse
+        {
+          getFile:              :File,
+          getMe:                :User,
+          getUpdates:           [:Update],
+          getUserProfilePhotos: :UserProfilePhotos,
+
+          forwardMessage:       :Message,
+          sendAudio:            :Message,
+          sendDocument:         :Message,
+          sendLocation:         :Message,
+          sendMessage:          :Message,
+          sendPhoto:            :Message,
+          sendSticker:          :Message,
+          sendVideo:            :Message,
+          sendVoice:            :Message,
+        }.each do |method, type|
+          next unless type
+          if type.is_a?(Array)
+            type_class = Types.const_get(type.first)
+            define_method(method.to_s.underscore) do |*args|
+              request(method, *args)['result'].map { |x| type_class.new(x) }
+            end
+          else
+            type_class = Types.const_get(type)
+            define_method(method.to_s.underscore) do |*args|
+              type_class.new request(method, *args)['result']
+            end
+          end
+        end
+      end
+    end
+  end
+end