gistfile1.rb

    get '/api/rising_and_falling' do
      begin
        data = CardPrices.success({"rising" => CardPrices::PriceStats.top_rising_cards,
                                   "falling" => CardPrices::PriceStats.top_dropping_cards})
      rescue
        data = CardPrices.error "Failed to retrieve rising and falling price data."
      end

      content_type :json
      return data.to_json
    end