What is the best way to enable logging inside an http handler?


(no hup) #1

Helly everyone,
I’m new to Go programming. I am trying to figure out the best way to see how to enable logging inside an http handler. The way I tried was to create a struct, with a *log.Logger type as a member, and attach methods with signatures similar to http.HandlerFunc(). It works, but I’m not sure if it is the best way to do it, and if it is a good practice to share the same logger between multiple handlers thinking about the performance bottleneck it may/maynot cause. The code looks something like

type Admin struct {
   L *log.Logger
}
 
func (a *Admin)AdminHandler (w http.ResponseWriter, r *http.Request) {
   w.Write([]byte("Hello"))
   a.L.Debugln(r.RequestURI)
}
 
func main() {
    admintype := new(controller.Admin)
    admintype.L = config.InitMainLogger("Handler")
    r := mux.NewRouter()
    r.HandleFunc("/favicon.ico", controller.FaviconHandler).Methods("GET")
    r.Handle("/admin/{user:.*}", http.HandlerFunc(admintype.AdminHandler))
    l.Errorln(http.ListenAndServe(conf.PORT, handlers.CombinedLoggingHandler(a, r)))
}

(system) #2

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