Having difficulties converting SQL query to Laravel builder

I am trying to convert the following query to laravels using query builder but having some issue with group by clause and sum aggregated functions

SELECT code, SUM(quantity) as quantity, SUM(sale_price) as price
FROM `orders` o
GROUP By code

I have tried this

    $args['orders'] = DB::table('orders')
    ->havingRaw('sum(sale_price)')
    ->havingRaw('code')
    ->where([ 'shop_id' => $shop_id ])
    ->groupBy('code')
    ->get();

via Waleed