django-channels VS Crossbar

Channels Medium Article

WebSockets or MQTT. If you’re open to Python and Django as a framework, check out Django Channels.

Creating a PWA is not like playing a card that wins the game. Moreover, users do not yet know the potential or do not know that they can be installed so they have a bit of a hard time catching on. At the moment I use Django + HTMX + AlpineJS to build my applications. This stack allows you to use WebSockets, but HTMX is not yet very mature in this respect. If you aim to create something complex on the user experience side, I have used the Django (+ Django rest framework) + React stack for years. It's good but it takes time both for creating things and to master it. Maybe you want to check out Django Channels too https://github.com/django/channels

Use Django channels package. I'm not very convinced for these reasons:

github issue

One program I sorta like is channels. You may have some luck searching for python example repositories (IIRC there is at least one project like this, with the structure and explaining what each stuff does, give preference to more recent projects as packaging is something that went through a lot of changes in the recent years).

Extra background information: * https://stackoverflow.com/a/49043121/1842286 * https://stackoverflow.com/questions/62199335/django-session-is-not-being-persisted-and-cookie-is-not-being-set-when-using-dja * https://github.com/django/channels/issues/1425 * https://github.com/django/channels/issues/1402 * https://github.com/django/channels/issues/1096

This works by a WebSocket client written in AutobahnPython, which stores data in zLMDB and published data in WAMP via Crossbar.io. zLMDP is memory mapped from within Jupyter, which allows direct high performance access (millions of rows/sec on PyPy!).