Node.js parse request url

parseRequestUrl.js

import { IncomingMessage } from 'http';
import { TLSSocket } from 'tls';
import { URL } from 'url';

export function parseRequestUrl(req: IncomingMessage) {
    let protocol = 'http';
    if ((req.socket as TLSSocket).encrypted) {
        protocol = 'https';
    }

    const baseUrl = `${protocol}://${req.headers.host}`;

    if (!req.url) {
        return new URL(baseUrl);
    }

    const parsedUrl = new URL(req.url, `${protocol}://${req.headers.host}`);
    return parsedUrl;
}