给高频调用的路由加上 cache-control

internal/middleware/cache_control.go

@@ -0,0 +1,18 @@
+package middleware
+
+import "github.com/gin-gonic/gin"
+
+const (
+	CacheControlList  = "public, max-age=300, s-maxage=1800, stale-while-revalidate=60"
+	CacheControlCurve = "public, max-age=300, s-maxage=3600, stale-while-revalidate=120"
+	CacheControlModelList = "public, max-age=30, s-maxage=300, stale-while-revalidate=30"
+)
+
+func CacheControl(value string) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.Header("Cache-Control", value)
+		c.Header("Vary", "Accept-Encoding")
+		c.Next()
+	}
+}
+