Realtime With Django

Jonathan Moss

Realtime with Django

• Sorry no Halloumi this time...
• Bullet Two
• Bullet Three
• ...

The Modern Web

• No longer simple request cycles
• Sites need to be more dynamic
• Movement toward web 'apps' rather than web sites

AJAX

• Solves some problem
• Partial updates
• Does not map nicely onto every scenario
• Long polling sucks bad!

Web Sockets

Web Sockets

• Bi-directional
• Push & Pull
• Realtime(ish)

But Django doesn't do Web Sockets...

Clearly we should all switch to Node!

It's webscale too:
https://www.youtube.com/watch?v=bzkRVzciAZg

Web Socket with Python

Crossbar.io

WAMP

• Pub/Sub + RPC
• Polyglot components
• 200K+ connections on commodity hardware

Demo Time

http://10.76.206.208:8000

https://github.com/a-musing-moose/dross

Crossbar.io

• Component Based
• Twisted & Asyncio
• Plus other languages (see http://autobahn.ws/)
• Multi-handler with Multi-node coming
• Even databases can become fully integrated components (experimental)

KTHXBYE

https://github.com/a-musing-moose/dross