Simplify NanaGet::JsonRpc2::RequestMessage because NanaGet::JsonRpc2:…

…:NotificationMessage is existed.

NanaGet/NanaGet.JsonRpc2.cpp

@@ -19,10 +19,7 @@ std::string NanaGet::JsonRpc2::FromRequestMessage(
         ResultJson["jsonrpc"] = "2.0";
         ResultJson["method"] = Value.Method;
         ResultJson["params"] = nlohmann::json::parse(Value.Parameters);
-        if (!Value.IsNotification)
-        {
-            ResultJson["id"] = Value.Identifier;
-        }
+        ResultJson["id"] = Value.Identifier;
         return ResultJson.dump(2);
     }
     catch (...)

NanaGet/NanaGet.JsonRpc2.h

@@ -29,23 +29,21 @@ namespace NanaGet::JsonRpc2
      */
     struct RequestMessage
     {
-        /**
-         * @brief true if this request is a notification. Otherwise false.
-         */
-        bool IsNotification = false;
         /**
          * @brief A string containing the name of the method to be invoked.
          *        method names that begin with the word rpc followed by a period
          *        character (U+002E or ASCII 46) are reserved for rpc-internal
          *        methods and extensions and MUST NOT be used for anything else.
          */
         std::string Method;
+
         /**
          * @brief A structured JSON value that holds the parameter values to be
          *        used during the invocation of the method. This member MAY be
          *        omitted.
          */
         std::string Parameters;
+
         /**
          * @brief An identifier established by the client. If it is not included
          *        it is assumed to be a notification. The value SHOULD normally

NanaGet/NanaGetCore.cpp

@@ -486,7 +486,6 @@ std::string NanaGet::Aria2Instance::SimpleJsonRpcCall(
     std::string const& Parameters)
 {
     NanaGet::JsonRpc2::RequestMessage Request;
-    Request.IsNotification = false;
     Request.Method = MethodName;
     Request.Parameters = Parameters;
     Request.Identifier = winrt::to_string(NanaGet::CreateGuidString());