Running multiple Starlette App instances in the same python process

[ksafonov]

Hey,

In our Python process we need to run multiple Starlette applications, each bound to a Uvicorn server listening on a different port. Lifespan of each server instance (and so Starlette app) is essentially short, as server implements "MCP server" interface for a short-lived AI task. Server/app instances should not be shared between tasks.

We see AppStatus helper is shared across all the Starlette app instances, making it harder to run multiple apps: we need to recreate AppStatus.should_exit_event instance before starting a server, since the instance gets bound to server's event loop, making it not reusable for the next servers. For apps running in parallel this becomes even more challenging.

I totally understand that our use case is not a typical one (server is usually supposed to run for all the lifetime of the Python process), but maybe there are plans to rework the helper?

[ksafonov]

Please disregard, just realized this is part of sse-starlette project.