61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
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package apis
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import (
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"reflect"
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"runtime"
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"strconv"
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"strings"
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"time"
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"github.com/prometheus/client_golang/prometheus"
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)
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var (
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requestCounter = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Name: "http_requests_total",
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Help: "Number of get requests.",
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},
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[]string{"handler", "method", "code"},
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)
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responseTimeDuration = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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Name: "http_request_duration_seconds",
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Help: "Histogram of response time for HTTP requests.",
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Buckets: []float64{0.1, 0.2, 0.5, 1, 2, 5, 10, 30, 60},
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},
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[]string{"handler", "method", "code"},
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)
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)
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// getHandleName 获取FuncHandle/StreamHandle函数名
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func getHandleName(fn any) string {
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fullName := runtime.FuncForPC(reflect.ValueOf(fn).Pointer()).Name()
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if fullName == "" {
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panic("get func name is empty")
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}
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parts := strings.Split(fullName, ".")
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lastPart := parts[len(parts)-1]
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name := strings.TrimSuffix(lastPart, "-fm")
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return name
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}
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// collectHandleMetrics api指标数据
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func collectHandleMetrics(funcName, method string, st time.Time, err error) {
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code := 200
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if err != nil {
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code = APIError(err).(*APIResponse).HTTPStatusCode
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}
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codeStr := strconv.Itoa(code)
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requestCounter.WithLabelValues(funcName, method, codeStr).Inc()
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duration := time.Since(st).Seconds()
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responseTimeDuration.WithLabelValues(funcName, method, codeStr).Observe(duration)
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}
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func init() {
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prometheus.MustRegister(requestCounter)
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prometheus.MustRegister(responseTimeDuration)
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}
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