update

middleware/middleware.go

@@ -0,0 +1,17 @@
+package middleware
+
+import (
+	"log"
+	"net/http"
+	"time"
+)
+
+func ResponseTimeMiddleware(next http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		start := time.Now()
+		path := r.URL.Path
+		next(w, r)
+		duration := time.Since(start)
+		log.Printf("%+v response time %+v", path, duration)
+	}
+}