Improve metrics

services/notification/app/main.py

@@ -22,6 +22,7 @@ from app.services.whatsapp_service import WhatsAppService
 from app.consumers.po_event_consumer import POEventConsumer
 from shared.service_base import StandardFastAPIService
 from shared.clients.tenant_client import TenantServiceClient
+from shared.monitoring.system_metrics import SystemMetricsCollector
 import asyncio
 
 
@@ -184,6 +185,10 @@ class NotificationService(StandardFastAPIService):
         self.email_service = EmailService()
         self.whatsapp_service = WhatsAppService(tenant_client=self.tenant_client)
 
+        # Initialize system metrics collection
+        system_metrics = SystemMetricsCollector("notification")
+        self.logger.info("System metrics collection started")
+
         # Initialize SSE service
         self.sse_service = SSEService()
         await self.sse_service.initialize(settings.REDIS_URL)
@@ -271,12 +276,14 @@ class NotificationService(StandardFastAPIService):
             return {"error": "SSE service not available"}
 
         # Metrics endpoint
-        @self.app.get("/metrics")
-        async def metrics():
-            """Prometheus metrics endpoint"""
-            if self.metrics_collector:
-                return self.metrics_collector.get_metrics()
-            return {"metrics": "not_available"}
+        # Note: Metrics are exported via OpenTelemetry OTLP to SigNoz
+        # The /metrics endpoint is not needed as metrics are pushed automatically
+        # @self.app.get("/metrics")
+        # async def metrics():
+        #     """Prometheus metrics endpoint"""
+        #     if self.metrics_collector:
+        #         return self.metrics_collector.get_metrics()
+        #     return {"metrics": "not_available"}
 
 
 # Create service instance