monkey patch aiohttp HeadersParser

# Remove aiohttp header size by monkey patching HeadersParser
# Solution for https://www.v2ex.com/t/762640
from aiohttp.http_parser import HeadersParser


def monkey_init(
    self,
    max_line_size: int = 8190,
    max_headers: int = 32768,
    max_field_size: int = 8190,
) -> None:
    self.max_line_size = max_line_size
    self.max_headers = max_headers
    # self.max_field_size = max_field_size
    self.max_field_size = 2 << 31


HeadersParser.__init__ = monkey_init

import asyncio
from aiohttp import ClientSession


async def main():
    async with ClientSession() as req:
        async with req.get("http://127.0.0.1:8080/") as r:
            print(await r.text())


asyncio.run(main())