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46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
package serverinterceptors
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import (
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"context"
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"strconv"
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"time"
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"zero/core/metric"
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"zero/core/timex"
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"google.golang.org/grpc"
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"google.golang.org/grpc/status"
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)
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const serverNamespace = "rpc_server"
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var (
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metricServerReqDur = metric.NewHistogramVec(&metric.HistogramVecOpts{
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Namespace: serverNamespace,
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Subsystem: "requests",
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Name: "duration_ms",
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Help: "rpc server requests duration(ms).",
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Labels: []string{"method"},
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Buckets: []float64{5, 10, 25, 50, 100, 250, 500, 1000},
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})
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metricServerReqCodeTotal = metric.NewCounterVec(&metric.CounterVecOpts{
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Namespace: serverNamespace,
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Subsystem: "requests",
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Name: "code_total",
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Help: "rpc server requests code count.",
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Labels: []string{"method", "code"},
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})
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)
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func UnaryPromMetricInterceptor() grpc.UnaryServerInterceptor {
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return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
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startTime := timex.Now()
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resp, err := handler(ctx, req)
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metricServerReqDur.Observe(int64(timex.Since(startTime)/time.Millisecond), info.FullMethod)
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metricServerReqCodeTotal.Inc(info.FullMethod, strconv.Itoa(int(status.Code(err))))
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return resp, err
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}
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}
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