Feature: Rewrite ProxyAgent about undici HOT 4 OPEN

import { Agent, request } from 'undici';
import { buildHttpProxyConnector } from '@undicijs/proxy';

// Connectors only for wrapping socket connection for distonation host
const httpProxyConnector = buildHttpProxyConnector('http://3proxy:8080');

// disposable agent
class DisposableAgent extends Agent implements AsyncDisposable {
	[Symbol.asyncDispose]() {
		return this.close();
	}
}

/**
 * get ip address with disposable agent via httpProxyConnector
 */
async function getIp() {
	await using dispatcher = new DisposableAgent({
		connect: httpProxyConnector,
		connections: 1
	});

	const ip = await request('https://api.ipify.org/', { dispatcher }).then(
		resp => resp.body.text()
	);

	return { ip };
} // disposing: close socket connections openned with dispatcher (DisposableAgent)

/**
 * get ip address with agent via httpProxyConnector
 */
async function getIpTryFinally() {
	const dispatcher = new Agent({ connect: httpProxyConnector, connections: 1 });

	try {
		const ip = await request('https://api.ipify.org/', { dispatcher }).then(
			resp => resp.body.text()
		);
		return { ip };
	} finally {
		await dispatcher.close();
	}
}