Cheerio Data Capture: Cheerio Data Capture Proxy IP Configuration

Why do I need a proxy IP for data crawling?

The old iron who has engaged in web crawling knows that the website is not vegetarian. You use your own IP gripping data, minutes to you blacklisted. At this timeProxy IPs are life preservers.The IP change, especially if you need a lot of crawling, is similar to changing your vest, making the site think that a new user is visiting every time.

Give a real scenario: using Cheerio to pick up e-commerce price data, a single IP continuous request 20 times will be blocked. At this time with ipipgo's dynamic residential IP pool, each request automatically change IP, the success rate directly pull full. The actual test of an e-commerce platform to capture 300 times in a row did not trigger the ban, this is the power of the agent.

Cheerio's hardcore operations with proxies

Here's one.Anyone can copy homework from scratch.The configuration of the program. Take the Node.js environment as an example, using axios to send requests and ipipgo's Socks5 proxy as a demo:

const cheerio = require('cheerio');
const axios = require('axios');
const { SocksProxyAgent } = require('socks-proxy-agent');

// proxy information from ipipgo backend
const proxy = {
  host: 'gateway.ipipgo.com',
  
  user: 'your account', pass: 'your password'
  pass: 'your password'
}

const agent = new SocksProxyAgent(
  `socks5://${proxy.user}:${proxy.pass}@${proxy.host}:${proxy.port}`
);

async function grabData(url) {
  try {
    const response = await axios.get(url, {
      httpsAgent: agent, timeout: 5000
      timeout: 5000
    }); const $ = cheerio.get(url)
    const $ = cheerio.load(response.data);
    // Write your parsing logic here...
  } catch (error) {
    console.log('Crawl error:', error.message); }
  }
}

IP selection guide for different scenarios

ipipgo's packages are not randomly chosen to give the guys the wholeDummies Cross Reference::

Guide to avoiding the pit (QA session)

Q: Do free proxies work?
A: Never! I've seen too many people using free proxies, and either the speed is like a snail, or all the data returned is fake. Previously, a brother to capture the competitor's data, the results of the price of all the messy code, delayed the promotional activities.

Q: How big does the IP pool need to be to be adequate?
A: Look at the defense level of the target site. Ordinary sites 50-100 IP per hour is enough, but like some anti-climbing perverted sites, it is recommended to use ipipgo'sTK Line, comes with IP rotation + request fingerprint masquerading.

Q: What should I do if I encounter CAPTCHA validation?
A: Two options: 1) reduce the frequency of requests 2) get on ipipgo'scross-border rail line, these IPs are residential addresses used by real people and have a much lower probability of triggering verification.

Say something from the heart.

Proxy configuration looks simple, but actually hides quite a few details. For example, many people do not knowProxy Timeout SettingsTo follow the IP type: dynamic IP recommended 3-5 seconds timeout, static IP can be set more than 10 seconds. Then, for example, encountered SSL certificate error, eighty percent is the proxy protocol did not choose the right (http and https channel do not confuse).

Lastly, I'd like to introduce you to ipipgo's1v1 program customizationLast time there is an overseas e-commerce friends, need to capture the price data of the three regions of the United States, Japan and South Korea at the same time, they directly to the technology to get a three-region IP auto-switching program, than the original self-built proxy pool to save 60% cost.