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| package main | |
| import ( | |
| "expvar" | |
| "log" | |
| "net/http" | |
| "github.com/gorilla/mux" | |
| ) | |
| var counter *expvar.Int | |
| func init() { | |
| counter = expvar.NewInt("counter") | |
| } | |
| func rootHandler(w http.ResponseWriter, r *http.Request) { | |
| w.Write([]byte("Hello world!\n")) | |
| counter.Add(1) | |
| } | |
| func main() { | |
| r := mux.NewRouter() | |
| r.HandleFunc("/", rootHandler) | |
| r.Handle("/debug/vars", http.DefaultServeMux) | |
| log.Fatal(http.ListenAndServe(":8000", r)) | |
| } |
Access root
http://localhost:8000
Access expvar information
http://localhost:8000/debug/vars