"""先启动 uvicorn，再运行 python concurrency_client.py。"""

import asyncio
from time import perf_counter

import httpx


async def main():
    async with httpx.AsyncClient(base_url="http://127.0.0.1:8000", timeout=10) as client:
        started = perf_counter()
        responses = await asyncio.gather(*[client.get("/slow?delay=1") for _ in range(4)])
        for index, response in enumerate(responses, start=1):
            response.raise_for_status()
            print(f"请求 {index}: {response.json()}")
        print(f"总耗时: {perf_counter() - started:.2f} 秒")


if __name__ == "__main__":
    asyncio.run(main())