1 files changed, 68 insertions, 0 deletions
diff --git a/http/routing/taggedrule.hpp b/http/routing/taggedrule.hpp
new file mode 100644
index 0000000000..ef62ab08da
--- /dev/null
+++ b/http/routing/taggedrule.hpp
@@ -0,0 +1,68 @@
+#pragma once
+#include "baserule.hpp"
+#include "dynamicrule.hpp"
+#include "ruleparametertraits.hpp"
+
+#include <boost/beast/http/verb.hpp>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace crow
+{
+template <typename... Args>
+class TaggedRule :
+    public BaseRule,
+    public RuleParameterTraits<TaggedRule<Args...>>
+{
+  public:
+    using self_t = TaggedRule<Args...>;
+
+    explicit TaggedRule(const std::string& ruleIn) : BaseRule(ruleIn) {}
+
+    void validate() override
+    {
+        if (!handler)
+        {
+            throw std::runtime_error("no handler for url " + rule);
+        }
+    }
+
+    template <typename Func>
+    void operator()(Func&& f)
+    {
+        static_assert(
+            black_magic::CallHelper<
+                Func, black_magic::S<crow::Request,
+                                     std::shared_ptr<bmcweb::AsyncResp>&,
+                                     Args...>>::value,
+            "Handler type is mismatched with URL parameters");
+        static_assert(
+            std::is_same<
+                void,
+                decltype(f(std::declval<crow::Request>(),
+                           std::declval<std::shared_ptr<bmcweb::AsyncResp>&>(),
+                           std::declval<Args>()...))>::value,
+            "Handler function with response argument should have void return type");
+
+        handler = std::forward<Func>(f);
+    }
+
+    void handle(const Request& req,
+                const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
+                const std::vector<std::string>& params) override
+    {
+        detail::routing_handler_call_helper::Call<
+            detail::routing_handler_call_helper::CallParams<decltype(handler)>,
+            0, black_magic::S<Args...>, black_magic::S<>>()(
+            detail::routing_handler_call_helper::CallParams<decltype(handler)>{
+                handler, params, req, asyncResp});
+    }
+
+  private:
+    std::function<void(const crow::Request&,
+                       const std::shared_ptr<bmcweb::AsyncResp>&, Args...)>
+        handler;
+};
+} // namespace crow