messenger_bot.rb

Bot.on :postback do |postback|
  case postback.payload
    when 'SETUP_BOT'
      postback.reply(text: 'Hello, I am your personal lifelog assistant, let me help you with setup procedure')
    when 'RESET'
      # TODO: we will implement reset functionality soon
      postback.reply(text: 'Reset has been completed')
    else
      Rails.logger.warn('Unhandled postback')
  end
end