Fix: Relay startup event through AlephApp

[MHHukiewitz]

Problem: @app.on_event("startup") would not be triggered on uvicorn startup

Solution: Relay "lifespan" events from the AlephApp to the http_app

[odesenfans]

I'm not sure where you find the on_event decorator on the AlephApp class? The fix looks correct but I don't 100% get your use case.

[MHHukiewitz]

Works for me on this app: https://github.com/yourtrading-ai/fishnet-cod/blob/main/src/fishnet_cod/api/main.py#L93

[MHHukiewitz]

Usecase is performing actions before the API gets ready. In this case its recreating the indices from POST messages with AARS

[MHHukiewitz]

More on this topic is found here: https://fastapi.tiangolo.com/advanced/events/

[odesenfans]

Usecase is performing actions before the API gets ready. In this case its recreating the indices from POST messages with AARS

I meant: I don't see where the on_event method/decorator is implemented. It's a really useful feature indeed.

[MHHukiewitz]

Here: https://fastapi.tiangolo.com/advanced/events/#startup-event
It somehow works

[MHHukiewitz]

Can it be merged? @hoh