Describe the bug

Startup event handlers for sub-applications never trigger.

To Reproduce

from fastapi import FastAPI


sub_app = FastAPI(openapi_prefix="/subapp")


@sub_app.on_event("startup")
async def sub_app_startup():
    print("++++ Sub-app startup event")  # Never fires


app = FastAPI()


@app.on_event("startup")
async def app_startup():
    prin

Great stuff! I'm planning to use API for my dashboard Pandemic Estimator but I wish your API had a better documentation on methodology. I'm using JHU directly and I know what chaos it is, the most blatant example being that they provide "cumulative data" that's not cumulative quite often in practice. And the whole change of file formats, etc.

Can you please de

We can improve the generated colors we some bit of Hue shifting. I'm not sure how I can implement this in matplotlib's colormap. Ideally, we shouldn't be choosing three random colors. Instead, we just generate a base color, then shift the hues 2-3 times. (One from the left and the other on the right).

This is definitely a nice-to-have, and I might do this in the future, not in POC

HI again there

Would you mind adding an option to change the base metric name ? Replacing starlette_requests_total by my_app_requests_total for example. Because if I keep using this lib, I'll mix up data between differents services

Best regards,