Golang Logging Middleware

middleware.go

func Middleware(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		dump, _ := httputil.DumpRequest(r, true)

		log.Println("-------------------- Request -------------------->")
		log.Println(string(dump))
		log.Println("<------------------- Request ---------------------")

		c := httptest.NewRecorder()

		next.ServeHTTP(c, r)

		for k, v := range c.HeaderMap {
			w.Header().Set(k, strings.Join(v, ""))
		}

		w.WriteHeader(c.Code)

		log.Println("-------------------- Response -------------------->")
		log.Println(string(c.Body.Bytes()))
		log.Println("<------------------- Response ---------------------")

		c.Body.WriteTo(w)
	})
}