update.

Base/Messages.h

@@ -2,10 +2,22 @@
 #define __MESSAGES_H__
 
 #include "Core/MessageManager.h"
+#include "Router/matches.hpp"
+#include <boost/beast/http/string_body.hpp>
 #include <boost/callable_traits/return_type.hpp>
 
+namespace Older {
 struct NotifyServerChan {
     using Signature = void(const boost::beast::http::request<boost::beast::http::string_body> &);
 };
 
+class HttpSession;
+using HttpRequest = boost::beast::http::request<boost::beast::http::string_body>;
+using RequestHandler = std::function<void(HttpSession &, const HttpRequest &, const boost::urls::matches &)>;
+
+struct RegisterUrlHandler {
+    using Signature = void(std::string_view url, RequestHandler &&handler);
+};
+} // namespace Older
+
 #endif // __MESSAGES_H__