42 lines
822 B
Go
42 lines
822 B
Go
package middleware
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import (
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"qd-sc/pkg/metrics"
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"time"
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"github.com/gin-gonic/gin"
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)
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// Metrics 指标收集中间件
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func Metrics() gin.HandlerFunc {
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m := metrics.GetGlobalMetrics()
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return func(c *gin.Context) {
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// 记录请求开始时间
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start := time.Now()
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// 增加总请求数和活跃请求数
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m.IncTotalRequests()
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m.IncActiveRequests()
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defer m.DecActiveRequests()
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// 检查是否是流式请求
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if c.GetHeader("Accept") == "text/event-stream" || c.Query("stream") == "true" {
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m.IncStreamRequests()
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}
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// 处理请求
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c.Next()
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// 记录延迟
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duration := time.Since(start)
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endpoint := c.Request.Method + " " + c.FullPath()
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m.RecordLatency(endpoint, duration)
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// 如果请求失败，增加失败计数
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if c.Writer.Status() >= 400 {
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m.IncFailedRequests()
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}
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}
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}
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