feature gunicorn startup

main.py

@@ -1,6 +1,7 @@
+from contextlib import asynccontextmanager
 from pathlib import Path
 
-import uvicorn
+# import uvicorn
 from fastapi import FastAPI
 
 from src.web.protected_routes.auth_routes import router as protected_router
@@ -8,7 +9,15 @@ from src.web.protected_routes.protected_user_action_routes import (
     router as protected_user_action_routes,
 )
 
-app=FastAPI(root_path="/")
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    create_dirs()
+    yield
+    print("shutting down")
+    
+    
+app=FastAPI(root_path="/", lifespan=lifespan)
 app.include_router(router=protected_router)
 app.include_router(router=protected_user_action_routes)
 
@@ -26,11 +35,4 @@ def create_dirs():
                     "./upload_finished")
     
     for x in dirs_to_create:
-        Path(x).mkdir(parents=True, exist_ok=True)
-
-def main():
-    create_dirs()
-    uvicorn.run("main:app", host="0.0.0.0", reload=True)
-    
-if __name__=="__main__":
-     main()
+        Path(x).mkdir(parents=True, exist_ok=True)