HTTPX は、FastAPI エンドポイントの ThreadPoolExecutor のより安全な代替手段ですか?

limits = httpx.Limits(max_keepalive_connections=5, max_connections=10)
async with httpx.AsyncClient(limits=limits) as client:
    ...

from fastapi import FastAPI, Request
from contextlib import asynccontextmanager
import httpx
import asyncio

URLS = ['https://www.foxnews.com/',
        'https://edition.cnn.com/',
        'https://www.nbcnews.com/',
        'https://www.bbc.co.uk/',
        'https://www.reuters.com/']

@asynccontextmanager
async def lifespan(app: FastAPI):
    # Custom settings
    client = httpx.AsyncClient(...)
    yield {'client': client}
    await client.aclose()  # Close the client on shutdown

app = FastAPI(lifespan=lifespan)

async def send(url, client):
    return await client.get(url)

@app.get('/')
async def main(request: Request):
    client = request.state.client
    tasks = [send(url, client) for url in URLS]
    responses = await asyncio.gather(*tasks)
    # Process the responses as needed (e.g., extract data, modify content)