Last active
June 22, 2023 12:53
-
-
Save Den1al/2ede0c38fa4bc486d1791d86bcf9034e to your computer and use it in GitHub Desktop.
concurrent http requests with aiohttp
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# author: @Daniel_Abeles | |
# date: 18/12/2017 | |
import asyncio | |
from aiohttp import ClientSession | |
from timeit import default_timer | |
import async_timeout | |
async def fetch_all(urls: list): | |
""" Fetch all URLs """ | |
tasks = [] | |
custom_headers = { | |
'User-Agent': 'aiohttp client 0.17' | |
} | |
async with ClientSession(headers=custom_headers) as session: | |
for url in urls: | |
task = asyncio.ensure_future(fetch(url, session)) | |
tasks.append(task) | |
_ = await asyncio.gather(*tasks) | |
async def fetch(url: str, session: object): | |
""" Fetch a single URL """ | |
with async_timeout.timeout(10): | |
async with session.get(url) as response: | |
before_request = default_timer() | |
resp = await response.read() | |
elapsed = default_timer() - before_request | |
print(f'{url:30}{elapsed:5.2f}') | |
return { | |
'resp': resp, | |
'url': url, | |
'elapsed': elapsed | |
} | |
def main(): | |
""" Main Function """ | |
start_time = default_timer() | |
urls = [ | |
'https://twitter.com', | |
'https://9to5mac.com', | |
'https://amazon.com' | |
] | |
loop = asyncio.get_event_loop() | |
total_future = asyncio.ensure_future(fetch_all(urls)) | |
loop.run_until_complete(total_future) | |
total_elapsed = default_timer() - start_time | |
print(f'{" total time of".rjust(28, "-")}: {total_elapsed:5.2f}') | |
if __name__ == "__main__": | |
main() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment