#!/usr/bin/env python3

import argparse
import asyncio

import aiohttp


async def curl(url):
    async with aiohttp.ClientSession() as session:
        async with session.request('GET', url) as response:
            print(repr(response))
            chunk = await response.content.read()
            print('Downloaded: %s' % len(chunk))


if __name__ == '__main__':
    ARGS = argparse.ArgumentParser(description="GET url example")
    ARGS.add_argument('url', nargs=1, metavar='URL',
                      help="URL to download")
    ARGS.add_argument('--iocp', default=False, action="store_true",
                      help="Use ProactorEventLoop on Windows")
    options = ARGS.parse_args()

    if options.iocp:
        from asyncio import events, windows_events
        el = windows_events.ProactorEventLoop()
        events.set_event_loop(el)

    loop = asyncio.get_event_loop()
    loop.run_until_complete(curl(options.url[0]))