public List <BidAsk> GetPrices(string brokerId)
        {
            var list = _reader.Get(BidAskNoSql.GeneratePartitionKey(brokerId));

            return(list.Select(e => e.Quote).ToList());
        }
        public BidAsk GetPrice(string brokerId, string symbol)
        {
            var price = _reader.Get(BidAskNoSql.GeneratePartitionKey(brokerId), BidAskNoSql.GenerateRowKey(symbol));

            return(price?.Quote);
        }