Expose prometheus metrics for payment

apps/payment/requirements.txt

@@ -9,6 +9,7 @@ beanie==1.21.0
 jieba==0.42.1
 sendgrid
 stripe==8.1.0
+prometheus_fastapi_instrumentator==7.0.2
 aio-pika
 httpx
 pydantic-settings

apps/payment/webapi/bootstrap/application.py

@@ -11,6 +11,9 @@ from webapi.providers import database
 from webapi.providers import exception_handler
 from .freeleaps_app import FreeleapsApp
 
+# prometheus
+from prometheus_fastapi_instrumentator import Instrumentator
+
 
 def create_app() -> FastAPI:
     logging.info("App initializing")
@@ -26,6 +29,8 @@ def create_app() -> FastAPI:
 
     # Call the custom_openapi function to change the OpenAPI version
     customize_openapi_security(app)
+    # expose prometheus metrics
+    Instrumentator().instrument(app).expose(app)
     return app