middleware separate route in golang (use mux and negroni )

middle.go

package main

import (
	"fmt"
	"log"
	"net/http"

	"github.com/urfave/negroni"

	"github.com/gorilla/mux"
)

func MyMiddleware1(w http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
	log.Println("Before My Middleware1")
	next(w, r)
	log.Println("After My Middleware1")
}

func MyMiddleware2(w http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
	log.Println("Before My Middleware2")
	next(w, r)
	log.Println("After My Middleware2")
}

func MyMiddleware3(w http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
	log.Println("Before My Middleware3")
	next(w, r)
	log.Println("After My Middleware3")
}

func main() {
	r := mux.NewRouter().StrictSlash(false)

	r.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		fmt.Fprintf(w, "Home index")
	})

	authBase := mux.NewRouter()
	r.PathPrefix("/").Handler(negroni.New(
		negroni.HandlerFunc(MyMiddleware1),
		negroni.Wrap(authBase),
	)).Path("/profile").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		fmt.Fprintf(w, "/auth/profile")
	})

	notAuth := mux.NewRouter()
	r.PathPrefix("/").Handler(negroni.New(
		negroni.NewLogger(),
		negroni.HandlerFunc(MyMiddleware2),
		negroni.Wrap(notAuth),
	)).Path("/login")

	http.ListenAndServe(":3000", r)

}