add monitoring

main.go

@@ -27,6 +27,12 @@ func main() {
 		log.Fatal("Failed to create tables:", err)
 	}
 
+	// Initialize Prometheus metrics
+	InitMetrics()
+
+	// Start metrics server on separate port
+	StartMetricsServer(config.MetricsPort)
+
 	// Create Gin router
 	r := gin.Default()
 
@@ -38,6 +44,9 @@ func main() {
 	corsConfig.AllowCredentials = true
 	r.Use(cors.New(corsConfig))
 
+	// Add metrics middleware
+	r.Use(MetricsMiddleware())
+
 	// Health check endpoint
 	r.GET("/health", func(c *gin.Context) {
 		c.JSON(200, gin.H{"status": "ok"})
@@ -85,6 +94,7 @@ func main() {
 	log.Printf("   📊 Health check: http://localhost:%s/health", port)
 	log.Printf("   🔗 API endpoint: http://localhost:%s/api/v1", port)
 	log.Printf("   🎨 Frontend: http://localhost:%s/", port)
+	log.Printf("   📈 Metrics: http://localhost:%s/metrics", config.MetricsPort)
 	log.Printf("")
 	log.Printf("✅ Server is ready and accepting connections!")
 	log.Printf("")