How to use hidden proxies in Node.js

Node.js is a JavaScript runtime based on the Chrome V8 engine. It allows JavaScript to run on the server side and provides a rich API interface. It is also one of the important tools for developing efficient web applications. Hidden proxy is a network technology that protects user privacy. In this article, we'll cover how to use hidden proxies in Node.js.

1. What is a hidden proxy?

Hidden proxy (also known as privacy proxy) is a network technology that can hide the user's real IP address and protect user privacy by routing traffic, masking connections, etc. On the network, each device has a unique IP address, and a hidden proxy can hide the user's IP address between the user and the target server to protect privacy. At the same time, hidden proxies can also help users access blocked websites and bypass network restrictions.

2. Using hidden proxies in Node.js

Using hidden proxies in Node.js is actually very simple. We can use the third-party module request to achieve this. The specific steps are as follows:

(1) Install the request module

using npm Package management tool, enter the following command to install the request module.

npm install request

(2) Set the proxy

Introduce the request module into the code and set the proxy. As shown below:

const request = require('request');
const proxyURL = 'http://127.0.0.1:1080'; // 代理服务器的地址和端口

const options = {
  url: 'http://www.example.com',
  proxy: proxyURL
};

request(options, (error, response, body) => {
  if (!error && response.statusCode == 200) {
    console.log(body); // 注意：body 是响应实体而非响应头部
  }
});

In the above example, proxyURL is the address and port of the proxy server. url in options is the address of the website to be accessed.

(3) Run the code

Enter the following command on the command line to run the code and view the access results on the console.

node proxy.js

The above are the basic steps for using hidden proxy in Node.js. Of course, in addition to the request module, Node.js has many other modules that can implement hidden proxies, such as http-proxy, socks, etc.

3. Application scenarios of hidden agents

There are many application scenarios for hidden agents, the most common of which is to protect user privacy. For example, on some websites, users need to enter personal information or location permissions to obtain better services. In this case, a hidden proxy can hide the user's real IP address and protect user privacy; at the same time, the hidden proxy can also help users Access blocked websites and bypass geographical location restrictions, allowing users to obtain higher quality network services.

4. Conclusion

Node.js is a very powerful tool that can help us achieve various tedious operations, including hidden proxy technology. Hope this article is helpful to you.

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