Improved database connection and logging

src/main.py

@@ -5,7 +5,7 @@ from starlette.exceptions import HTTPException as StarletteHTTPException
 from typing import Dict
 from pydantic import BaseModel
 from validator import verify_api_key
-from db import get_db, create_connection_pool, close_connection_pool
+from db import get_db, create_connection_pool, close_connection_pool, start_healthcheck_thread
 from logger_handler import setup_logger
 from rabbitmq_handler import send_message_to_rmq, create_connection, close_connection
 import uvicorn
@@ -33,6 +33,9 @@ async def lifespan(app: FastAPI):
 	logger.info("Connecting to RabbitMQ...")
 	app.state.rmq_connection = create_connection()
 
+	start_healthcheck_thread()
+	logger.info("MySQL healthcheck thread started.")
+
 	yield
 	logger.info("Closing RabbitMQ connection...")
 	close_connection(app.state.rmq_connection)