copy mw len fix

mux.go

@@ -35,37 +35,38 @@ func (m *Mux) Use(h ...func(http.Handler) http.Handler) {
 	if m == nil {
 		panic("mux: func Use was called on nil")
 	}
+
 	m.middlewares = append(m.middlewares, h...)
 }
 
 // GET method route
-func (m *Mux) GET(pattern string, h http.HandlerFunc) {
-	m.handle(http.MethodGet, pattern, h)
+func (m *Mux) GET(pattern string, h http.HandlerFunc, mw ...func(http.Handler) http.Handler) {
+	m.handle(http.MethodGet, pattern, h, mw...)
 }
 
 // HEAD method route
-func (m *Mux) HEAD(pattern string, h http.HandlerFunc) {
-	m.handle(http.MethodHead, pattern, h)
+func (m *Mux) HEAD(pattern string, h http.HandlerFunc, mw ...func(http.Handler) http.Handler) {
+	m.handle(http.MethodHead, pattern, h, mw...)
 }
 
 // POST method route
-func (m *Mux) POST(pattern string, h http.HandlerFunc) {
-	m.handle(http.MethodPost, pattern, h)
+func (m *Mux) POST(pattern string, h http.HandlerFunc, mw ...func(http.Handler) http.Handler) {
+	m.handle(http.MethodPost, pattern, h, mw...)
 }
 
 // PUT method route
-func (m *Mux) PUT(pattern string, h http.HandlerFunc) {
-	m.handle(http.MethodPut, pattern, h)
+func (m *Mux) PUT(pattern string, h http.HandlerFunc, mw ...func(http.Handler) http.Handler) {
+	m.handle(http.MethodPut, pattern, h, mw...)
 }
 
 // PATCH method route
-func (m *Mux) PATCH(pattern string, h http.HandlerFunc) {
-	m.handle(http.MethodPatch, pattern, h)
+func (m *Mux) PATCH(pattern string, h http.HandlerFunc, mw ...func(http.Handler) http.Handler) {
+	m.handle(http.MethodPatch, pattern, h, mw...)
 }
 
 // DELETE method route
-func (m *Mux) DELETE(pattern string, h http.HandlerFunc) {
-	m.handle(http.MethodDelete, pattern, h)
+func (m *Mux) DELETE(pattern string, h http.HandlerFunc, mw ...func(http.Handler) http.Handler) {
+	m.handle(http.MethodDelete, pattern, h, mw...)
 }
 
 // CONNECT method route
@@ -86,7 +87,7 @@ func (m *Mux) TRACE(pattern string, h http.HandlerFunc) {
 // handle registers the handler for the given pattern.
 // If the given pattern conflicts, with one that is already registered, HandleFunc
 // panics.
-func (m *Mux) handle(method, pattern string, h http.HandlerFunc) {
+func (m *Mux) handle(method, pattern string, h http.HandlerFunc, mw ...func(http.Handler) http.Handler) {
 	if m == nil {
 		panic("mux: func Handle() was called on nil")
 	}
@@ -100,13 +101,20 @@ func (m *Mux) handle(method, pattern string, h http.HandlerFunc) {
 	}
 
 	path := fmt.Sprintf("%s %s", method, pattern)
+	if len(mw) > 0 {
+		mws := make([]func(http.Handler) http.Handler, len(m.middlewares)+len(mw))
+		copy(mws, m.middlewares)
+		mws = append(mws, mw...)
+	} else {
 		m.mux.Handle(path, stack(m.middlewares, h))
+	}
+
 	m.routes.Add(path)
 }
 
 // With adds inline middlewares for an endpoint handler.
 func (m *Mux) With(middleware ...func(http.Handler) http.Handler) *Mux {
-	mws := make([]func(http.Handler) http.Handler, len(m.middlewares))
+	mws := make([]func(http.Handler) http.Handler, len(m.middlewares)+len(middleware))
 	copy(mws, m.middlewares)
 	mws = append(mws, middleware...)
 

mux_test.go

@@ -153,7 +153,8 @@ func TestRouterGroup(t *testing.T) {
 func TestRouterResource(t *testing.T) {
 	r := New()
 
-	r.Resource("/users", func(res *Resource) {
+	r.Resource("/users",
+		func(res *Resource) {
 			res.Index(func(w http.ResponseWriter, r *http.Request) {
 				fmt.Fprint(w, "All users")
 			})

resource.go

@@ -21,7 +21,7 @@ type Resource struct {
 //   - PUT  /pattern/:id			update a resource
 //   - PATCH  /pattern/:id		partial update a resource
 //   - DELETE /resource/:id		delete a resource
-func (m *Mux) Resource(pattern string, fn func(res *Resource)) {
+func (m *Mux) Resource(pattern string, fn func(res *Resource), mw ...func(http.Handler) http.Handler) {
 	if m == nil {
 		panic("mux: Resource() called on nil")
 	}
@@ -35,9 +35,14 @@ func (m *Mux) Resource(pattern string, fn func(res *Resource)) {
 	}
 
 	// Copy root middlewares.
-	mws := make([]func(http.Handler) http.Handler, len(m.middlewares))
+	mws := make([]func(http.Handler) http.Handler, len(m.middlewares)+len(mw))
 	copy(mws, m.middlewares)
 
+	// Append inline middlewares.
+	if len(mw) > 0 {
+		mws = append(mws, mw...)
+	}
+
 	fn(&Resource{
 		mux:         m.mux,
 		pattern:     pattern,