Best Practices Server Side Events?

[joa23]

Hi,
I have a long running process (~1 min) I want to kick off and then send progress events to the UI.
What is best practise here?
Does SSE also work with post and I kick off my process with the same endpoint that provides progress updates through SSE?
Or, should I have a seperate end point and then maybe provide some sort of ID and let the UI get progress updates on a different end point that does the SSEs?
Thanks.