added prometheus metrics

internal/app/handler.go

@@ -47,6 +47,7 @@ func NewApp(deps Deps) *App {
 	}
 
 	app.router = app.routerHandler.Set()
+	app.routerHandler.EnableMetrics()
 	apiRoutes := app.router.Group(app.apiPrefix)
 
 	apiRoutes.GET("/", func(c *gin.Context) {

internal/interfaces/router.go

@@ -8,4 +8,5 @@ type Router interface {
 	Set() *gin.Engine
 	AuthMW() gin.HandlerFunc
 	RefreshMW() gin.HandlerFunc
+	EnableMetrics()
 }

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)
+}