diff --git a/examples/example.cpp b/examples/example.cpp
index a2739a827..7915e469e 100644
--- a/examples/example.cpp
+++ b/examples/example.cpp
@@ -13,12 +13,11 @@ struct ExampleMiddleware
 {
     std::string message;
 
-    ExampleMiddleware() 
+    ExampleMiddleware() : message(std::string("foo"))
     {
-        message = "foo";
     }
 
-    void setMessage(std::string newMsg)
+    void setMessage(const std::string &newMsg)
     {
         message = newMsg;
     }
diff --git a/examples/example_vs.cpp b/examples/example_vs.cpp
index dbc4d3101..87e344011 100644
--- a/examples/example_vs.cpp
+++ b/examples/example_vs.cpp
@@ -13,12 +13,11 @@ struct ExampleMiddleware
 {
     std::string message;
 
-    ExampleMiddleware() 
+    ExampleMiddleware() : message(std::string("foo"))
     {
-        message = "foo";
     }
 
-    void setMessage(std::string newMsg)
+    void setMessage(const std::string &newMsg)
     {
         message = newMsg;
     }
diff --git a/include/crow/http_response.h b/include/crow/http_response.h
index 0b46aaecb..ad479ccf6 100644
--- a/include/crow/http_response.h
+++ b/include/crow/http_response.h
@@ -124,6 +124,11 @@ namespace crow
             }
         }
 
+        void end(const int& _code) {
+            code = _code;
+            end();
+        }
+
         /// Same as end() except it adds a body part right before ending.
         void end(const std::string& body_part)
         {
diff --git a/include/crow/routing.h b/include/crow/routing.h
index 0ddf72dfa..2403d10a0 100644
--- a/include/crow/routing.h
+++ b/include/crow/routing.h
@@ -516,7 +516,33 @@ namespace crow
         template <typename Func>
         typename std::enable_if<
             !black_magic::CallHelper<Func, black_magic::S<Args...>>::value &&
-            !black_magic::CallHelper<Func, black_magic::S<crow::request, Args...>>::value,
+            !black_magic::CallHelper<Func, black_magic::S<crow::request, Args...>>::value &&
+            black_magic::CallHelper<Func, black_magic::S<crow::response&, Args...>>::value,
+            void>::type
+            operator()(Func&& f)
+            {
+                static_assert(black_magic::CallHelper<Func, black_magic::S<Args...>>::value ||
+                black_magic::CallHelper<Func, black_magic::S<crow::response&, Args...>>::value
+                ,
+                "Handle type is mismatched with URL parameters");
+                static_assert(std::is_same<void, decltype(f(std::declval<crow::response&>(), std::declval<Args>()...))>::value,
+                "Handler function with response argument should have void return type");
+                
+                handler_ = (
+                    #ifdef CROW_CAN_USE_CPP14
+                    [f = std::move(f)]
+                    #else
+                    [f]
+                    #endif
+                    (const crow::request& req, crow::response& res, Args ... args) {
+                        f(res, args...);
+                    });
+            }
+            template <typename Func>
+            typename std::enable_if<
+            !black_magic::CallHelper<Func, black_magic::S<Args...>>::value&&
+            !black_magic::CallHelper<Func, black_magic::S<crow::request, Args...>>::value &&
+            !black_magic::CallHelper<Func, black_magic::S<crow::response, Args...>>::value,
             void>::type
         operator()(Func&& f)
         {