Product ID Capture Tool: Product ID Capture Solution

Data veterans play with product ID capture like this

Doing e-commerce friends must have encountered this scenario: want to analyze the competitor's data, but directly climb the other site minutes to be blocked IP. this time to rely on theproxy IPto fight a guerrilla war, especially with pros like ipipgo that can make it look like you're wearing a cloak of invisibility when you're capturing product IDs.

Why do I have to use a proxy IP?

To give a real example: last year there is a wholesale clothing buddy, want to catch a platform of explosive goods number. The first two days with their own broadband climb quite happy, the third day directly received a platform warning letter. Later changed ipipgoDynamic Residential Agents, rotated through 500+ different IPs every day and ran for half a month straight without flipping.

import requests
from itertools import cycle

 Proxy pool provided by ipipgo (example)
proxies = [
    "http://user:pass@gateway.ipipgo.com:8001",
    "http://user:pass@gateway.ipipgo.com:8002"
]

proxy_pool = cycle(proxies)

for page in range(1,101): current_proxy = next(proxy_pool)
    current_proxy = next(proxy_pool)
    try: current_proxy = next(proxy_pool)
        response = requests.get(
            f "https://example.com/products?page={page}",
            proxies={"http": current_proxy}, timeout=10
            timeout=10
        )
         Here is the logic to extract the product ID
    except.
        print(f "Stuck with this IP with {current_proxy}, automatically switch to the next one.")

The three axes of real-world acquisition

The first axe: IP rotation strategy
Don't be a fool and use a fixed IP to tough it out, ipipgo'sAutomatic switching functionMuch less work than changing IPs manually. It is recommended to change the IP for every 50 pages you capture, and cut immediately when you encounter CAPTCHA.

The second axe: requesting rhythmic control
Don't send requests like a hungry wolf, set a random delay is the way to go. Like this:

import random
import time

 Randomly wait 1-3 seconds
time.sleep(random.uniform(1, 3))

Third Axe: The Complete Book of Disguise
Remember to make the request header look like a real browser, especially the User-Agent should be changed often. ipipgo'sBrowser Fingerprinting LibraryCan automatically generate a variety of equipment information, tested than the free library found online.

First aid kit for common pitfalls

Q: What should I do if I keep triggering CAPTCHA?
A: three approaches together: 1) reduce the frequency of requests 2) change ipipgo's mobile IP 3) add image recognition module

Q: What should I do if I get disconnected halfway through the acquisition?
A: Do a good job of the breakpoint mechanism to record the page number that has been crawled. Use ipipgo'sLong-lasting static IPWhen you do, it is recommended that you save your progress every 10 pages you complete.

Q: What's wrong with incomplete data capture?
A: eighty percent of the IP is limited to flow, change ip ipgo'sHigh Stash AgentsTry. There is also a hidden trick - use different geographical IP to catch different categories of goods, for example, use Shanghai IP to catch women's clothing, use Guangzhou IP to catch men's clothing.

Look for these doors when choosing an agency service

Agency services on the market are a mixed bag, to teach you a few tricks to avoid the pit:

• Look at the IP purity: some proxy IP has long been pulled by the major platforms, ipipgo's IP poolWeekly update rate over 30%
• Measure the response rate: don't just look at the ads, write your own script to measure the packet loss rate!
• Check the protocol support: to support HTTP/HTTPS/SOCKS5 at the same time, this point ipipgo do quite good!

Finally said a cold knowledge: with the proxy IP collection, remember to change the DNS resolution into a proxy server address, so that the effect of anti-tracking directly doubled. Specific how to set up can see ipipgo official website'sAnti-Association Tutorial, they even have a ready-made program for such details, which really saves the effort.