#define CROW_JSON_USE_MAP #include "crow.h" int main() { crow::SimpleApp app; // simple json response using a map // To see it in action enter {ip}:18080/json // it shoud show amessage before zmessage despite adding zmessage first. CROW_ROUTE(app, "/json") ([] { crow::json::wvalue x({{"zmessage", "Hello, World!"}, {"amessage", "Hello, World2!"}}); return x; }); app.port(18080) .multithreaded() .run(); }