function in function async loop

Question

I'm going to call the unspecified number of the counter function from inside the loop function And the counter function also call the send_request function

just i want counter do not wait for the send_request answer , when HTTP response Arrived print

import requests
import asyncio
import random 


async def counter(i):
    print("Started counter ",i)
    await asyncio.create_task(send_request(random.randint(1,10)))
                                   
async def send_request(i):
    print("Sending HTTP request  ",i)
    await asyncio.sleep(i)
    r = requests.get('http://example.com')
    print(f"Got HTTP response with status {r.status_code} in time {i}")

@app.incomeing_msg(i)
async def loop(i):
    asyncio.create_task(counter(i))
        
asyncio.run(loop())

If you don't want loop to wait for each task, don't await each task! gather them once you have created all of them. — MisterMiyagi
– MisterMiyagi, Commented Mar 9, 2022 at 15:09
Does this answer your question? Why does await asyncio.create_task() behave different then when assigning it to a variable? — MisterMiyagi
– MisterMiyagi, Commented Mar 9, 2022 at 15:13
Note that requests is a synchronous library. Don't use it in an asynchronous event loop, since it will block the entire loop – and thus all its tasks – while working. — MisterMiyagi
– MisterMiyagi, Commented Mar 9, 2022 at 15:14

Ali Rn · Accepted Answer · 2022-03-09 15:04:50Z

-1

BTW if you want to send n requests in parallel you can use threading and write something like this:

from threading import Thread
import requests
import random
import time


def counter(i):
    print("Started counter ", i)
    send_request(random.randint(1, 10))


def send_request(i):
    print("Sending HTTP request  ", i)
    time.sleep(i)
    r = requests.get('http://example.com')
    print(f"Got HTTP response with status {r.status_code} in time {i}")


def loop():
    n = 5 
    tasks = [Thread(target=counter, args=(i, )) for i in range(n)]
    [t.start() for t in tasks]

answered Mar 9, 2022 at 15:04

Ali Rn

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1 Comment

m.m h Over a year ago

That's right- this is exactly what I need. just async version

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