tmpl-fastapi/app/main.py

from typing import List, Type
from fastapi import FastAPI
from fastapi.staticfiles import StaticFiles

from . import common

# Add your paths here
from .paths import Paths
from . import pages
from . import errors

paths: List[Type[Paths]] = [
    pages.MainPaths,
    errors.ErrorsPaths,
]


app = FastAPI()
app.mount(
    '/static',
    StaticFiles(directory=common.static_dir),
    name='static',
)
for p in paths:
    p(app).add_paths()