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