部署Python Flask应用程序和ReactJS应用程序的最佳方法是什么？

I have developed two applications, one ReactJS, and one Python using Flask. The development was for ReactJS only at first, but then I created the Flask app to use it to write to files on server, and run batch files. I am getting the data from an API that belongs to another application. The Flask app is the only app to communicate with the API, while the React app gets the data to display by sending to Flask. Also using a Flask app as a middle agent made the CORS issue go away so far.I have developed two applications, one ReactJS,