[FIXED] How to query ipython (jupyterlab?) kernel from javascript in the notebook?

Issue

You can write some html and js and display things in the notebook but what is the standard way of querying the "backend" ... i.e. sending requests to the python process driving the notebook?

Solution

Use the Jupyter messaging protocol:
https://jupyter-client.readthedocs.io/en/stable/messaging.html

Answered By - Roland Weber