Handle presence leaves / joins on page navigate

Phoenix Forum Questions / Help
1

I was fiddling around with Presence, and I noticed that presence sends leaves and joins when a user navigates trough the site. Its just a plain phoenix site, no react stuff etc.
The websocket connection is obviously reconnecting when a user navigates, because the page is reloaded.

I was wondering how to tackle this behaviour, maybe go with turbolinks or something. Or set a delay in the join in the channel?

2

Are the leaves and joins problematic with your features? The behavior is expected, but if you are wanting something like not seeing “flapping” users coming and going on the UI, I would handle it all client side with a timeout. So when you see a user leave from all devices/tabs, I would setTimeout a function to actually handle the UI update, which I would cancel from the join callback for that user if we see them return.

2 Likes
3

thanks :slight_smile:
it’s not problematic, if noticed it and thought maybe its getting expensive when I run a lot of users …