threads-esm
Very simple worker thread abstraction for ts-node ESM builds.
Couldn't get ts-node ESM workers to work with threads.js, and it doesn't look like I'm alone.
I threw this together as a quick alternative for what I needed.
Install
yarn add threads-esmor
npm install threads-esmExample
This basic example can be run using the example script (yarn example or npm run example).
A common interface
interface ExampleWorker {
add: (a: number, b: number) => Promise<number>;
subtract: (a: number, b: number) => number;
foo: string;
}index.mts (The main process)
import { spawn } from 'threads-esm';
const worker = await spawn<ExampleWorker>(new URL('./worker.mts', import.meta.url));
// an async function that returns the result of the add function
const result1 = await worker.add(1, 2);
// an async function that returns the result of the subtract function
const result2 = await worker.subtract(1, 2);
// an async function that returns the value of foo property
const result3 = await worker.foo();worker.mts (The worker thread)
import { expose } from 'threads-esm';
expose<ExampleWorker>({
// A function that returns a promise of a number
add: (a: number, b: number): Promise<number> => Promise.resolve(a + b),
// A function that returns a number
subtract: (a: number, b: number): number => a - b,
// A property that is a string
foo: 'bar'
});