在flask使用异步

async in flask.py

import asyncio
import time

import httpx
from flask import Flask, jsonify

app = Flask(__name__)


@app.route('/')
def hello_world():
    start = time.time()
    for i in range(10):
        response = httpx.get('https://www.baidu.com')
        print(response)
    return jsonify(elp=str(time.time() - start))  # 0.75


async def fetch(url: str) -> str:
    async def task_handler(url):

        async with httpx.AsyncClient() as client:
            response = await client.get(url)
            print(response)

    tasks = []
    for i in range(10):
        tasks.append(task_handler(url))
    await asyncio.gather(*tasks)


@app.route('/async')
def async_hello():
    start = time.time()
    asyncio.run(fetch('https://www.baidu.com'))
    return jsonify(elp=str(time.time() - start))  #0.18


app.run()