block3.ts

import * as urlHelpers from 'url';
import { UrlWithParsedQuery } from 'url';
import { pipe } from './helpers/pipe';

const parseUrlWithQueryString = (url: string): UrlWithParsedQuery =>
    urlHelpers.parse(
        url,
        // Parse the query string
        true,
    );

const mapUrl = (fn: (parsedUrl: UrlWithParsedQuery) => UrlWithParsedQuery) =>
    pipe(
        parseUrlWithQueryString,
        fn,
        urlHelpers.format,
    );