Add kyc business metrics

src/main.py

@@ -19,6 +19,7 @@ from src.infrastructure.database.unit_of_work import UnitOfWork
 from src.infrastructure.vault import JwtKeyStore, start_jwt_keys_scheduler
 from src.infrastructure.utils import generate_instance_id
 from src.infrastructure.logger import logger
+from src.infrastructure.metrics import PrometheusMetricsMiddleware, metrics_response
 from src.infrastructure.config import settings
 from src.presentation.handlers import application_exception_handler,unhandled_exception_handler,validation_exception_handler
 from src.presentation.middleware import TraceIDMiddleware, SecurityHeadersMiddleware
@@ -103,6 +104,8 @@ app.add_exception_handler(ApplicationException, application_exception_handler)
 app.add_exception_handler(RequestValidationError, validation_exception_handler)
 app.add_exception_handler(Exception, unhandled_exception_handler)
 
+app.add_middleware(PrometheusMetricsMiddleware)
+
 app.include_router(kyc_router)
 
 
@@ -157,6 +160,11 @@ async def custom_redoc_html(_credentials: HTTPBasicCredentials = Depends(verify_
     )
 
 
+@app.get('/metrics', include_in_schema=False)
+async def metrics() -> Response:
+    return await metrics_response()
+
+
 @app.post('/ping')
 async def ping() -> dict[str, str]:
     return {