Update main.py

main.py

@@ -5,6 +5,8 @@ from fastapi import Form
 
 from fastapi.responses import JSONResponse
 
+app = FastAPI()
+
 @app.post("/file/upload")
 async def upload_file(username: str, uploaded_file: UploadFile = File(...)):
     path_to_save_file = Path.home() / username / "saved_files"