ginx

var (
	// RequestDurationHistogram 记录请求耗时分布
	RequestDurationHistogram = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Name:    "http_server_request_duration_seconds",
			Help:    "HTTP server request duration in seconds",
			Buckets: []float64{0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1, 2.5, 5, 10},
		},
		[]string{"method", "path", "status"},
	)

	// RequestCounter 记录请求总数
	RequestCounter = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Name: "http_server_requests_total",
			Help: "HTTP server requests total",
		},
		[]string{"method", "path", "status"},
	)
	// RequestInFlight 记录当前并发请求数
	RequestInFlight = prometheus.NewGaugeVec(
		prometheus.GaugeOpts{
			Name: "http_server_requests_in_flight",
			Help: "HTTP server requests currently processing",
		},
		[]string{"method", "path"},
	)
)