Django Server Sent Events to provide live data requirements

[phillxnet]

In line with "Reduce JS libs dependencies via HTMX" #2735 and as a follow-up to our "Update python-socketio & python-engineio to latest" #2591 it looks like, post Django 4.2, we can use server sent events:

• https://valberg.dk/django-sse-postgresql-listen-notify.html
• https://oluwatobi.dev/blog/exploring_sse_and_postgresql_for_realtime_communication_in_django/

StreamingHttpResponse now supports async iterators when Django is served via ASGI.

See also: https://2023.pycon.org.au/program/WMBADG/

Using Django 4.2's StreamingHttpResponse and HTMX SSE to provide real time notifications

Required depencies

• Django 4.2
• Psycopg 3
• Add HTMX library
• Move to ASGI for our Django