Jupyter Hub support

[bugzpodder]

I was playing around with my local jupyterhub and couldn't get jupyter-ui to work. It seems that from
https://jupyter-ui.datalayer.tech/docs/deployments/jupyterhub/
this is not currently supported?

[echarles]

Hi, it is supported, but we need to document that.

[bugzpodder]

any tips on how to set it up?
I am looking at https://jupyterhub.readthedocs.io/en/stable/reference/rest-api.html and it doesn't have some of the apis that jupyter server is calling, like /api/kernelspecs

[echarles]

jupyter-react is already a jupyter-server extension. So it supports the authentication used by juptyerhub.

You need to pip install -e . this repo, the use jupyter react command (it is not fully working on my env to render correctly the notebook, it was I think before).

Then you would need to enroll the new command in jupyterhub. That is possible as vscode e.g. can be served by jupyterhub.

There is the spawner road https://jupyterhub.readthedocs.io/en/stable/reference/spawners.html where you would create a new spawner, maybe overkill. I don't find atm how to override the launch command, that maybe possible, not sure anymore.

[echarles]

There is also https://github.com/ideonate/jhsingle-native-proxy to launch any process, but I think it does not support the latest jupyterhub version. This one https://github.com/nebari-dev/jhub-apps may offer similar features but updated to latest jupyterhub.

I am lacking time atm, I am pretty sure there is a way to make it easy to change the launcher command.

[echarles]

This can be useful https://jupyterhub.readthedocs.io/en/stable/howto/configuration/config-user-env.html#switching-back-to-the-classic-notebook You can use JUPYTERHUB_SINGLEUSER_APP and set your own python module to launch what you want.

[echarles]

I have pushed e6a4f4a which restore the behavior when you launch with jupyter react - The defined application in webpack.config.js is accessible on http://localhost:8888/jupyter_react

I have then updated my jupyterhub_config.py with c.Spawner.default_url = '/jupyter_react' The result is promising, there are some javascript that need to be correctly loaded, which can be fixed in the index.html template adding the correct base_url.