package middlewares import ( "log" "net/http" "time" ) type wrappedWriter struct { http.ResponseWriter statusCode int } func (w *wrappedWriter) WriteHeader(statusCode int) { w.ResponseWriter.WriteHeader(statusCode) w.statusCode = statusCode } func Logging(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { start := time.Now() wrapped := &wrappedWriter{ ResponseWriter: w, statusCode: http.StatusOK, } next.ServeHTTP(wrapped, r) log.Println(wrapped.statusCode, r.Method, r.URL.Path, r.RemoteAddr, time.Since(start)) }) }