I have an app the does network request, which makes use of the great support for async event handlers.
However, network requests can fail, and what I don’t see is a great way to handle error messages.
I found modals in templates, but there I’m having a weird issue where the busy indicator keeps flashing and I also don’t want the header bar in my app. I have not yet figured out if there is a way to add a modal to a custom template?
I found there is an
Alert panel, which I guess I could use. But I’m having issues again where the size of the app gets calculated incorrectly if I add it.
What would be ideal if you could just have a Parameterized with an Exception or something.
I would suggest using the notifications component being introduced in Panel 0.13.0, see a preview here: Notifications — Panel v0.13.0rc1
This is a side-effect of either running with
--autoreload (which you should only do in development or related to a periodic callback.
Seems neat, but doesn’t seem to work for me.
pip install panel==0.13.0rc1
pn.extension('plotly', sizing_mode='stretch_both', notifications=True)
except Exception as e:
But it prints the exception without showing a notification.
This is not using any particular template, because as I said I’m not interested in the busy indicator, header or any other features offered by it.
I do plan to add a custom template soon to customize the CSS of my app, so if the problem is I need to add some magic area, that could be done.
 uh I tried adding a roots.notifications area but apparently you need more trickery than that. Unfortunate. Is there a template that has notifications, no header, or one you can get rid of?