FastAPI app with /static mounted in main application code results in 404s

[zdgriffith]

Using code from the panel fastapi tutorial:

import panel as pn

from fastapi import FastAPI
from panel.io.fastapi import add_application

app = FastAPI()
#from fastapi.staticfiles import StaticFiles
#app.mount("/static", StaticFiles(directory="my_app/static"), name="static")

@app.get("/")
async def read_root():
    return {"Hello": "World"}


@add_application('/panel', app=app, title='My Panel App')
def create_panel_app():
    slider = pn.widgets.IntSlider(name='Slider', start=0, end=10, value=3)
    return slider.rx() * '⭐'

If I un-comment out the lines mounting a static dir the app no longer works and I get 404s from the bokeh js calls. I can get around this by changing the mount path in my app, but perhaps it would be more fool-proof if this package mounted the static files to a non-standard location? (e.g. /bokeh_static)

Thanks for your consideration.

For reference I am using:
bokeh_fastapi 0.1.3
fastapi 0.115.12
panel 1.6.3

[pmeier]

Thanks for the report @zdgriffith. In theory this is easy to fix on our side:

bokeh-fastapi/src/bokeh_fastapi/application.py

Lines 258 to 267 in b0e66b4

	# Mount static file handlers
	for ext_name, ext_path in extension_dirs.items():
	app.mount(
	f"/static/extensions/{ext_name}",
	StaticFiles(directory=ext_path),
	name=ext_name,
	)
	app.mount(
	"/static", StaticFiles(directory=settings.bokehjs_path()), name="static"
	)

However, I don't know bokeh allows that or if the paths are hardcoded there. @philippjfr can you shed some light?