Enhancement: recurring ping in sse response

[mixartemev]

Summary

problem: response failed due to timeout if no events come for a long time;
proposal: add ping message every x seconds in sse response.

Basic Example

like in sse-starlette

Drawbacks and Impact

No response

Unresolved questions

No response

[euri10]

hi @mixartemev , I'm not aware of a timeout on sse, would you have an example please ?

[mixartemev]

@euri10 Probably it's a feature of telegram only (telegram mini applications).
In browser no sse-timeouts indeed, but in TMA sse response with no ping, fails exactly after 1 minute.

on the screenshot in response onsse-order returns ping every 55 seconds, and sse-msgs with no ping fails after 60 seconds

[euri10]

seems like a good addition then

[provinzkraut]

Mh. If we add this, it should probably be optional.