Logging in Dash - LogTransform

I’m getting closer to what I want to do… I thik what i’m looking for is in fact the Websocket ability of dash-extension…
But i’m not able to make the example here : Dash, probably because i have no idea of what is a websocket endpoint. Maybe I need to launch another process somewhere to fill the url : “ws://127.0.0.1:5000/random_data”

@Emil I have found an example here https://community.plotly.com/t/dash-extensions-websockets-working-example/50907/2 for someone who fight with the same issue, but the file does not exit anymore… can you help ?

Thanks in advance

Yann