init

internal/metrics/metrics.go

@@ -0,0 +1,21 @@
+package metrics
+
+import (
+	"strconv"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+var requestCounter *prometheus.CounterVec
+
+func init() {
+	requestCounter = promauto.NewCounterVec(prometheus.CounterOpts{
+		Name: "request_counter",
+		Help: "A counter of total requests by status code",
+	}, []string{"code", "method"})
+}
+
+func RequestInc(statusCode int, method string) {
+	requestCounter.With(prometheus.Labels{"code": strconv.Itoa(statusCode), "method": method}).Inc()
+}