Gorilla mux custom middleware

Question

I am using gorilla mux for manage routing. What I am missing is to integrate a middleware between every request.

For example

package main  import (     "fmt"     "github.com/gorilla/mux"     "log"     "net/http"     "strconv" )  func HomeHandler(response http.ResponseWriter, request *http.Request) {      fmt.Fprintf(response, "Hello home") }  func main() {      port := 3000     portstring := strconv.Itoa(port)      r := mux.NewRouter()     r.HandleFunc("/", HomeHandler)     http.Handle("/", r)      log.Print("Listening on port " + portstring + " ... ")     err := http.ListenAndServe(":"+portstring, nil)     if err != nil {         log.Fatal("ListenAndServe error: ", err)     } } 

Every incoming request should pass through the middleware. How can I integrate here a midleware?

Update

I will use it in combination with gorilla/sessions, and they say:

Important Note: If you aren't using gorilla/mux, you need to wrap your handlers with context.ClearHandler as or else you will leak memory! An easy way to do this is to wrap the top-level mux when calling http.ListenAndServe:

How can I prevent this scenario?

Answer 1

Just create a wrapper, it's rather easy in Go:

func HomeHandler(response http.ResponseWriter, request *http.Request) {      fmt.Fprintf(response, "Hello home") }  func Middleware(h http.Handler) http.Handler {     return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {         log.Println("middleware", r.URL)         h.ServeHTTP(w, r)     }) } func main() {     r := mux.NewRouter()     r.HandleFunc("/", HomeHandler)     http.Handle("/", Middleware(r)) }