initialize bot client within TelegramBackgroundWorkerJob

Active job run in a separate process or thread from the main Rails application server.

Author: ramsayleung

app/jobs/telegram_background_worker_job.rb

@@ -26,7 +26,7 @@ def perform(args)
   private
 
   def bot
-    @bot ||= Rails.application.config.telegram_bot
+    @bot ||= Telegram::Bot::Client.new(Rails.application.credentials.dig(:telegram_bot_token))
   end
 
   def delete_message(chat_id:, message_id:)