Excel proxy IP crawler plug-in: Excel proxy crawler plug-in development

Excel table party's gospel: do-it-yourself proxy IP crawler plug-ins

Do data analysis friends must have encountered this situation: want to use Excel to climb the site data directly, the results just grabbed two pages of IP was blocked. At this time if you can have aAutomatic proxy IP switchingThe plug-in, that is really a blessing in disguise. Today we will teach you how to build a hand to Excel "anti-blocking artifacts".

Plugin Development Core Ideas

The entire plugin'ssoul componentJust three pieces: web request module, proxy scheduling module, data cleaning module. Focusing on the proxy scheduling part, it has to be done:

1. Real-time access to the available proxy pool
2. Intelligent switching failed IP
3. Automatic retry failed requests

To give a chestnut, use VBA to call ipipgo's API interface, every 5 times to grab data on a different IP, so that the site simply can not touch your real address.

Hands-on Step-by-Step Breakdown

Step 1: Build a proxy channel
Go to the ipipgo website and sign up, then find this parameter in the console:

API address: api.ipipgo.com/getproxy
Key: your own token
Protocol type: HTTP/HTTPS is fine.

Step 2: Write the core code
Here's a Python example (don't be afraid, it will be converted to VBA later):

import requests

def get_proxy(): res = requests.get("")
    res = requests.get("http://api.ipipgo.com/getproxy?token=你的密钥")
    return res.json()['proxy']

def excel_crawler(url).
    for _ in range(3): retry at most 3 times
        try.
            proxy = {"http": get_proxy()}
            data = requests.get(url, proxies=proxy, timeout=10)
            return clean_data(data.text)
        except.
            continue
    return "Crawl failed"

Guide to avoiding the pit

Special reminder: do not meet the CAPTCHA hard just, should be on the coding platform do not hurt the money, after all, time is money.

QA time

Q: Why do I have to use a proxy IP?
A: To give a real case: a user directly climbed an e-commerce data, 1 hour was blocked 32 IP, changed to ipipgo dynamic residential, continuous collection of 6 hours without pressure.

Q: What about the slow speed of Excel add-in?
A: three optimization direction: ① change exclusive static IP ② reduce page loading resources ③ set a reasonable request interval (recommended 2-5 seconds)

Q: Which package should I choose?
A: Individual users choose Dynamic Standard Edition ($7.67/GB), Enterprise Edition Dynamic ($9.47/GB) for enterprise-level projects, and Static Residential ($35/IP) for long-term fixed operations

Say something from the heart.

Actually, the hardest part of this plugin is not the technical implementation, but theStable Agent Source. Anyone who has used a free proxy before knows that it was a disaster site. Then I switched to ipipgo and discovered the law of true scent - people's residential IPs are real home broadband, which is more than an order of magnitude more reliable than server room IPs.

And finally, here's a secret trick: add aIP Quality Detection ModuleThe nodes with high latency are automatically filtered out. So that the plugin is used both stable and fast, the boss looked straight to the insider!