🚀 New Component: Flash v0.1.0b2 - Async Dash

Dash Python
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Exmaples of websocket component & gathering promises

Hi Community!
After some back and forth, I can confidently share my Flash package. It is now in version v0.1.0b2 and includes all known Dash(v2.18.2) functions.

The repo builds directly on Dash and has a distinct package for publishing. This approach makes it possible to run Dash’s tests see test-logs. For the most part, tests that not pass either contain a process lock or global variable. More details regarding testing can be seen in this thread

That said, I didn’t encounter any bugs or issues yet, but haven’t test it in a proper production environment. I will keep you postet as soon as i deployed it in a K8s cluster! :slight_smile:

Dash Flash advantages:

  • Ensuring I/O bound tasks don’t block each other
  • Better state management via the URL due to async layout functions
  • Native websocket and HTTP/2 support

Possible future improvements:

  • websocket_callbacks broadcasting results to all clients subscripted to that callback
  • parallel routing

For further details and everything you need to start - have a look at the README

pip install dash-flash

Happy coding :pray:

3 Likes
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Pretty cool, I like it.

Currently, I am running two servers, one being FastAPI with async functionality.
With your Flash I could likely consolidate everything, making things a bit easier.

  • websocket_callbacks broadcasting results to all clients subscripted to that callback

If I get time the next weeks, I will try it out :smiley:

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Yes, definitely! Just missing the type validation. But also something to consider for the future - secure_callbacks that also check pydantic types.

Looking forward to your feedback!

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@Datenschubse this looks fantastic - hope you continue the development on it. Curious - is the plotting in the demo video the Apex Charts wrapper or something else?

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Hi @matthewcampbell - its planned for sure! haha
The chart is from the great dash-mantine-components chart package which is a wrapper around Recharts!