Asynchronous request to bitFlyer using HTTP/2 with HTTPX.

httpx_http2_async.py

import asyncio
import time

import httpx


async def main():
    for use_http2 in (False, True):
        async with httpx.AsyncClient(
            base_url="https://api.bitflyer.com", http2=use_http2
        ) as client:
            # open connection
            await client.get("")

            # asynchronous request
            sta = time.monotonic()
            await asyncio.gather(
                client.get("/v1/getboard?product_code=BTC_JPY"),
                client.get("/v1/getboard?product_code=XRP_JPY"),
                client.get("/v1/getboard?product_code=ETH_JPY"),
                client.get("/v1/getboard?product_code=XLM_JPY"),
                client.get("/v1/getboard?product_code=MONA_JPY"),
                client.get("/v1/getboard?product_code=ETH_BTC"),
                client.get("/v1/getboard?product_code=BCH_BTC"),
                client.get("/v1/getboard?product_code=FX_BTC_JPY"),
                client.get("/v1/getboard?product_code=BTCJPY08SEP2023"),
                client.get("/v1/getboard?product_code=BTCJPY15SEP2023"),
                client.get("/v1/getboard?product_code=BTCJPY29SEP2023"),
            )
            end = time.monotonic()

            print(f"{use_http2=:}: {end - sta:.6f} sec")

    """STDOUT
    use_http2=False: 0.133507 sec
    use_http2=True: 0.028044 sec
    """


asyncio.run(main())