Reformat and change send to x-www-form-urlencoded

Joel Grunbaum

2022-01-19 0bef191acd5a77544852e6a3daae2df05bd34a31

 json.hpp

@@ -113,7 +113,8 @@
    std::string owner;
   AddedMessage(MessageTypes type, std::string product, std::string id,
                book::OrderSideEnum side, double price, uint64_t filled,
                uint64_t resting, std::string owner, uint64_t sequence, double timestamp);
                uint64_t resting, std::string owner, uint64_t sequence,
                double timestamp);
   std::string as_string();
};