External input in dash plotly

Question

In my specific case I am looking to have zeromq (https://zeromq.org) messages trigger a callback in dash (and the dash callback be able to trigger sending messages similarly). Generically this is having dash triggered by external input; is there anything like this or similar that works in dash?

Answer 1

Talking from experience, I have used a dash-django-redis-celery hybrid setup. In summary, we had celery run jobs periodically, these jobs would in turn update the database, and then in dash having a dcc.interval component to update the dashboard and if the data has been changed, this would trigger a callback of some kind that is dependent on the data. So yes, I imagine this could be possible with zeroMQ with a similar approach, but you'll need to use a backend framework like django to coordinate and wrap this all up which I can't say for sure is.

If you are not too eager on using ZeroMQ, then redis+celery is great with Django, and there is a nice package for building django-dash applications which is actively updated.