Init

2026-03-29 22:51:02 +07:00
commit 91f289c647
20 changed files with 2184 additions and 0 deletions
@@ -0,0 +1,31 @@
+package server
+
+import (
+	"strconv"
+	"time"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+var (
+	httpInFlight = promauto.NewGauge(prometheus.GaugeOpts{
+		Name: "telemt_gateway_http_in_flight",
+		Help: "Current requests being served.",
+	})
+	httpRequests = promauto.NewCounterVec(prometheus.CounterOpts{
+		Name: "telemt_gateway_http_requests_total",
+		Help: "HTTP requests by status, method, alias.",
+	}, []string{"code", "method", "alias"})
+	httpDuration = promauto.NewHistogramVec(prometheus.HistogramOpts{
+		Name:    "telemt_gateway_http_request_duration_seconds",
+		Help:    "Request duration in seconds.",
+		Buckets: prometheus.DefBuckets,
+	}, []string{"method", "alias"})
+)
+
+func observeRequest(method, alias string, status int, started time.Time) {
+	httpInFlight.Dec()
+	httpRequests.WithLabelValues(strconv.Itoa(status), method, alias).Inc()
+	httpDuration.WithLabelValues(method, alias).Observe(time.Since(started).Seconds())
+}