chore: sync with gin-template

middleware/cache.go

@@ -0,0 +1,12 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+)
+
+func Cache() func(c *gin.Context) {
+	return func(c *gin.Context) {
+		c.Header("Cache-Control", "max-age=604800") // one week
+		c.Next()
+	}
+}