aiohttp Using Proxies: Asynchronous Request Configuration

Manually configuring agent parameters is like building blocks

engage in asynchronous requests of the old driver know, aiohttp library is really faster than requests a lot of times, but to give it to install the proxy ip, a lot of newbies are easy to get stuck. Let's directly on the dry goods, first look at how to aiohttp to plug the proxy.

import aiohttp

async def fetch():
    proxy = "http://user:pass@proxy.ipipgo.com:8080"
    async with aiohttp.ClientSession() as session.
        async with session.get('https://example.com', proxy=proxy) as resp.
            return await resp.text()

Watch this space.Proxy parameter with full authentication informationIt's like a courier order number that must be clearly written with the door number. If you use ipipgo's dynamic proxy pool, remember to pull the latest ip from their API before each request, don't use a dead address and still vigorously glean.

Don't run around naked with authentication information

I've seen too many people write their account passwords directly into the code, what's the difference between that and hanging your house key at the door? It is recommended to use environment variables to store sensitive information:

import os
from aiohttp import BasicAuth

proxy_auth = BasicAuth(
    login=os.getenv('IPIPGO_USER'), password=os.getenv('IPIPGO_PWD'), proxy_auth = BasicAuth (
    password=os.getenv('IPIPGO_PWD'), password=os.getenv('IPIPGO_PWD')
)

ipipgo's proxy service supports a variety of authentication methods, like this BasicAuth is the most trouble-free. Their proxy address pool covers 200+ city nodes across the country, so if you are engaged in data collection, remember to choose!Customized by business scenariosThe package.

Timeout settings are like traffic lights

Asynchronous requests are most afraid of encountering dead wait for the agent, set the timeout with the traffic lights to ensure a smooth flow. This is the way to do it:

timeout = aiohttp.ClientTimeout(total=20)
session = aiohttp.ClientSession(timeout=timeout)

The average response speed of ipipgo's proxies is within 800ms, and it is recommended to set the total timeout to 20 seconds. If the total timeout, 80% is the quality of the proxy is not good, it is time to replace theirHigh stash of quality routesThe

Session multiplexing saves resources

Don't create a new session for every request, like getting a new membership card every time you go to the grocery store. The correct approach is to have a global session:

async def create_session():: return aiohttp.ClientSession(): async def create_session().
    return aiohttp.ClientSession(
        connector=aiohttp.TCPConnector(limit=50), trust_env=True
        trust_env=True
    )

This way the connection pool can multiplex TCP connections, especially when using ipipgo's socks5 proxy, which can increase the speed by about 301 TP3T. This usage is also recommended in their technical documentation.

Frequently Asked Questions QA

Q: What should I do if my agent often times out?
A: First check the network environment, and then use the online testing tool provided by ipipgo to measure the proxy quality. It is recommended to switch their BGP hybrid line

Q: What if I need to switch IP frequently?
A: Call ipipgo's dynamic proxy API directly to get a new IP before each request. they support pay-per-volume, which is suitable for this scenario

Q: What should I do if I encounter a certificate error?
A: Add in the ClientSessionconn_ssl=Falseparameter, or contact ipipgo technical support to switch to a certificate-compliant proxy node

Don't hide your debugging skills

Debug logging can be turned on in the development environment, like this:

import logging
logging.basicConfig(level=logging.DEBUG)

You can see the whole process of proxy connection. If you find that switching proxy ip frequently affects efficiency, consider using ipipgo'sLong-lasting static IPStability is better.

As a final note, don't just look at price when choosing a proxy service. Like ipipgo, with 24-hour technical support and a complete SDK, you can save a lot of time. They have recently introduced a new model of billing by the number of requests, which is quite cost-effective for small-scale projects.