⚡ Adds prometheus registry

main.go

@@ -6,9 +6,11 @@ import (
 	"net/http"
 	"time"
 
+	"github.com/labstack/echo-contrib/echoprometheus"
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
 	"github.com/labstack/gommon/log"
+	"github.com/prometheus/client_golang/prometheus"
 )
 
 const TimeFormat = "2006-01-02 15:04:05"
@@ -58,8 +60,22 @@ func main() {
 		}
 	}
 
+	registry := prometheus.NewRegistry()
+	counter := prometheus.NewCounter(
+		prometheus.CounterOpts{
+			Name: "custom_requests_total",
+			Help: "How many HTTP requests processed, partitioned by status code and HTTP method.",
+		},
+	)
+	if err := registry.Register(counter); err != nil {
+		log.Fatal(err)
+	}
+
 	app.GET("/", func(c echo.Context) error {
 		return c.JSON(http.StatusOK, "Hello, World!")
 	})
+
+	app.GET("/metrics", echoprometheus.NewHandlerWithConfig(echoprometheus.HandlerConfig{Gatherer: registry}))
+
 	log.Fatal(app.Start(":1323"))
 }