性能优化

server/middleware/ratelimit.go

@@ -0,0 +1,29 @@
+package middleware
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"go.uber.org/ratelimit"
+)
+
+// 限制每秒请求数量
+// r := rg.Group("/", middleware.RateLimiterMiddleware(200))
+func RateLimiterMiddleware(rate int) gin.HandlerFunc {
+	rl := ratelimit.New(rate)
+
+	return func(c *gin.Context) {
+		// Try to take a token from the rate limiter.
+		now := rl.Take()
+
+		// Check if we've waited longer than expected. If so, this means the rate
+		// limit has been exceeded.
+		if now.After(time.Now()) {
+			c.AbortWithStatus(http.StatusTooManyRequests)
+			return
+		}
+
+		c.Next()
+	}
+}