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advanced patterns with asyncio and aiohttp when Handling Concurrent Requests in Python 3.11

👀 Views: 15 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-11
python asyncio aiohttp Python

I'm not sure how to approach I'm not sure how to approach I'm working with an scenario with using `asyncio` and `aiohttp` to handle multiple concurrent requests in my Python 3.11 application... I have a function that makes several HTTP GET requests to an external API, and I expect the responses to be processed concurrently. However, I'm experiencing unexpected delays and sometimes getting a `TimeoutError` even though the API is up and running. Here's a simplified version of my code: ```python import asyncio import aiohttp async def fetch(session, url): async with session.get(url) as response: return await response.json() async def fetch_all(urls): async with aiohttp.ClientSession() as session: tasks = [fetch(session, url) for url in urls] return await asyncio.gather(*tasks) if __name__ == '__main__': urls = [ 'https://api.example.com/data1', 'https://api.example.com/data2', 'https://api.example.com/data3' ] asyncio.run(fetch_all(urls)) ``` When I run this code, it sometimes takes longer than expected to complete all requests, and I've seen `TimeoutError: ClientTimeout` messages in the output. I've tried increasing the timeout settings in my session like this: ```python async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=60)) as session: ``` But this hasn't resolved the scenario. I also checked if the external API was under heavy load, but it seems responsive. Is there something I'm missing in my implementation, or could there be an scenario with how I manage the event loop? Any insights would be greatly appreciated! Could someone point me to the right documentation?