Node.js Advanced Tunnel Proxy: undici / superagent / https

import { request, ProxyAgent } from 'undici';
 
const proxyUrl = `http://${user}:${pass}@${host}:${port}`;
 
// Scenario A: Force IP switch
for (let i = 1; i <= 3; i++) {
    const proxyAgent = new ProxyAgent(proxyUrl);
    const resp = await request('https://httpbin.org/ip', {
        dispatcher: proxyAgent,
        headers: { 'Connection': 'close' },
    });
    const data = await resp.body.json();
    console.log(`Request ${i}: ${data.origin}`);
    proxyAgent.close();
}
 
// Scenario B: Keep IP
const proxyAgent = new ProxyAgent(proxyUrl);
for (let i = 1; i <= 3; i++) {
    const resp = await request('https://httpbin.org/ip', {
        dispatcher: proxyAgent,
        headers: { 'Connection': 'keep-alive' },
    });
    const data = await resp.body.json();
    console.log(`Request ${i}: ${data.origin}`);
}
proxyAgent.close();

const proxyAgent = new ProxyAgent({
    uri: proxyUrl,
    headers: { 'Proxy-Tunnel': 'undici-demo' },
});

import superagent from 'superagent';
import { HttpsProxyAgent } from 'https-proxy-agent';
 
const proxyUrl = `http://${user}:${pass}@${host}:${port}`;
 
// HTTPS Tunnel via proxyOpts.headers
const agent = new HttpsProxyAgent(proxyUrl, {
    headers: { 'Proxy-Tunnel': 'superagent-demo' },
});
 
const resp = await superagent
    .get('https://httpbin.org/ip')
    .agent(agent)
    .timeout({ response: 15000 });
 
console.log(resp.text);

import { HttpsProxyAgent } from 'https-proxy-agent';
 
const agent = new HttpsProxyAgent(proxyUrl, {
    headers: { 'Proxy-Tunnel': 'https-demo' },
});
 
const req = https.request({
    hostname: 'httpbin.org',
    path: '/ip',
    agent,
    method: 'GET',
}, (res) => {
    let data = '';
    res.on('data', chunk => data += chunk);
    res.on('end', () => console.log(data));
});
req.end();