package middleware import ( "log/slog" "net/http" "time" ) type responseWriter struct { http.ResponseWriter statusCode int } func (rw *responseWriter) WriteHeader(code int) { rw.statusCode = code rw.ResponseWriter.WriteHeader(code) } func Logging(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { start := time.Now() ww := &responseWriter{ResponseWriter: w, statusCode: http.StatusOK} next.ServeHTTP(ww, r) slog.Info("request", "method", r.Method, "path", r.URL.Path, "status", ww.statusCode, "duration_ms", time.Since(start).Milliseconds(), "request_id", RequestIDFromCtx(r.Context()), ) }) }