Node.js Web Unblocking Middleware: Bypassing Geoblocking Solutions

Where the hell is this thing stuck?

大伙儿肯定遇到过这种情况：打开某个网站突然跳个提示说”您所在的地区无法访问”，就像去菜市场买菜被摊主挥手赶人似的。这种地域限制背后的技术原理其实特简单——服务器通过检测访问者的IP属地来设卡。举个栗子，某视频网站只允许美国IP观看，咱们用国内网络就会被无情挡在门外。

Putting a "face mask" on your website.

The most straightforward method to solve this problem is toMake the server not recognize our real IP.. This is like using a friend's address to receive a courier when shopping online, in principle, it's all about hiding real information. In the Node.js environment, we can use middleware to automatically apply a proxy IP to each request, which is done in three steps:

const axios = require('axios');
const proxyMiddleware = require('http-proxy-middleware');

// Configure the proxy middleware
app.use('/api', proxyMiddleware({
  target: 'http://目标网站.com',
  changeOrigin: true,
  router: async (req) => {
    // Here we call the ipipgo API to get a dynamic IP.
    const { data } = await axios.get('https://ipipgo.com/api/get-proxy');
    return `http://${data.ip}:${data.port}`;
  }
}));

Choosing a proxy IP is like picking a watermelon

Not all proxy IPs are good, you have to pay attention to a few hard indicators:

Here's a little something for you.ipipgoThe service of their family specializes in residential proxy IP, the actual test to open the web page speed with the local network is not more than two seconds. The point is that their IP pool is automatically updated every day, unlike some service providers who always give some old IPs.

A practical guide to avoiding the pit

Seen a lot of developers fall into these pits:

1. IP replacement frequency: Don't be silly and change IP for every request, it's easy to be targeted by the anti-climbing mechanism. It is recommended to change every 5-10 minutes
2. request header masquerading asRemember to change the Accept-Language in the headers to the language of the proxy IP.
3. timeout setting: put a 10 second timeout on requests, and pull back if you run into a lagging IP.

question-and-answer session

Q: What should I do if I use a proxy IP and still get recognized?
A: 80% of the data center IP, change ipipgo's residential IP to try, the degree of camouflage is higher!

Q: How to solve the problem of slow proxy IP speed?
A: Prioritize the nodes close to the target server, for example, to access the U.S. site with ipipgo's U.S. West node

Q: Do free proxies work?
A: Never! Those free IPs have been played with for a long time, slowing down the speed or leaking data!

Say something from the heart.

Although it is important to engage in technical realization, but choose the right tool is really save. I have used seven or eight agency service providers, ipipgo in the price-performance area can really beat. They also recently came out with aIntelligent RoutingThe function can automatically match the fastest line, which is especially friendly to newbies. If you can't decide, you can first jack their trial package, anyway, the white whoring is not a loss.