How to properly organize getting data from mongo?

Question

MongoDB

Good afternoon, there is a task when updating data in the database to send them via websocket to the client.
The difficulty lies in the fact that the data is filled with a separate script.

Answer 1

You don't have many options:
1) Send sockets at the end of your script execution;
2) Save information, for example, with the value {"use": False}, check for updates by the server side and then send it to the client side.

Answer 2

Make an asynchronous worker on asyncio / tornado / gevent, run zmq there to receive messages from the script and websocket to communicate with the client, you can also send messages to the client from the web application. There will be something like:
Script --(zmq)--> async_server --(ws)--> Client