added prometheus metrics

internal/router/handler.go

@@ -6,6 +6,7 @@ import (
 	log "github.com/sirupsen/logrus"
 	swaggerFiles "github.com/swaggo/files"
 	ginSwagger "github.com/swaggo/gin-swagger"
+	ginprometheus "github.com/zsais/go-gin-prometheus"
 	"merch-parser-api/internal/interfaces"
 	"net/http"
 	"time"
@@ -73,3 +74,8 @@ func (r *router) Set() *gin.Engine {
 
 	return r.engine
 }
+
+func (r *router) EnableMetrics() {
+	p := ginprometheus.NewPrometheus("gin")
+	p.Use(r.engine)
+}