While lightweight and easy to use, Flask’s built-in server is not suitable for production as it doesn’t scale well and by default serves only one request at a time. Some of the options available for properly running Flask in production are documented here.
If you want to deploy your Flask application to a WSGI server not listed here,
look up the server documentation about how to use a WSGI app with it. Just
remember that your
Flask application object is the actual WSGI