aliasResolver.ts

const {resolve} = require('path');
var hjson = require('hjson'); // Allow us to use comments in json files
var fs = require('fs');
const TSModuleAlias = require("@momothepug/tsmodule-alias");

function resolveTsconfigPathsToAlias({tsconfigPath = './tsconfig.json', rootConfigBasePath: rootConfigBasePath = './'} = {}) {

    const rawJson = fs.readFileSync(tsconfigPath, 'UTF-8');
    const commentsStrippedJson = hjson.parse(rawJson);

    const {paths, outDir} = commentsStrippedJson.compilerOptions;

    const aliases = {};

    Object.keys(paths).forEach((item) => {
        const key = item.replace('/*', '');
        // @ts-ignore
        aliases[key] = resolve(rootConfigBasePath, outDir + "/" + paths[item][0].replace('/*', '')) ;
    });

    return aliases

}

const aliases = resolveTsconfigPathsToAlias();
TSModuleAlias.use(aliases);

gistfile1.txt

require("./aliasResolver.js"); // Call this to set the aliases base on "outDir" setting

import express, {Application, Request, Response} from "express";