From 8bf523fbf07f53eed60842f8e8cfda37055b140c Mon Sep 17 00:00:00 2001
From: MercornKing <mercornking@gmail.com>
Date: Thu, 30 Jul 2026 01:42:42 +0100
Subject: [PATCH] fix: prevent duplicate log entries on context cancellation

---
 logger.go | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 logger.go

diff --git a/logger.go b/logger.go
new file mode 100644
index 0000000..6ee573a
--- /dev/null
+++ b/logger.go
@@ -0,0 +1,22 @@
+package chi
+
+import (
+	"net/http"
+	"sync"
+)
+
+type LoggerMiddleware struct {
+	mu     sync.Mutex
+	logged map[*http.Request]bool
+}
+
+func (l *LoggerMiddleware) Handle(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		next.ServeHTTP(w, r)
+		l.mu.Lock()
+		defer l.mu.Unlock()
+		if !l.logged[r] {
+			l.logged[r] = true
+		}
+	})
+}