Multi-threaded with BCrypt server with dynamically spawned workers

bcrypt_server_multithreaded.js

const express = require('express');
const {Worker, isMainThread, parentPort, workerData} = require('worker_threads');
const encrypt = require('./encrypt');

if (isMainThread) {
    const app = express();
 
    app.get('/', (req, res, next) => {
        console.log('serving request...');
        const worker = new Worker(__filename, {workerData: req.query.text});
        worker.once('message', (enc) => {
            res.status(200).send(enc);
        });
        worker.once('error', (err) => {
            console.error(err);
        });
    });

    app.listen(8082);
} else {
    const enc = encrypt(workerData);
    parentPort.postMessage(enc);
}