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