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 (
         


        

Answer 1

func Middleware(h http.Handler) http.Handler {
    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        // do stuff
        h.ServeHTTP(w, r)
    })
}
func Middleware2(s string) mux.MiddlewareFunc {
    return func(h http.Handler) http.Handler {
        return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
            // do stuff
            fmt.Println(s)
            h.ServeHTTP(w, r)
        })
    }
}
func main() {
    router := mux.NewRouter()


    router.Use(Middleware)
    //you can apply it to a sub-router too
    subRouter := router.PathPrefix("/sub_router/").Subrouter()
    subRouter.Use(Middleware2("somePrams"))
    // Add more middleware if you need call router.Use Again
    // router.Use(Middleware3, Middleware4, Middleware5)

    _ = http.ListenAndServe(":80", router)
}

the official doc on the mux website