napolab / worker-thread

@napolab/worker_thread

rollup + esbuild 環境で worker を使うためのライブラリ

Install

npm i @napolab/worker_thread

Usage

rollup.config.mjs

import { worker } from "@napolab/worker_thread/rollup-plugin";
import { defineConfig } from "rollup";
import esbuild from "rollup-plugin-esbuild";
import { externals } from "rollup-plugin-node-externals";

const out = "dist";

export const config = defineConfig({
  input: {
    index: "src/index.ts",
  },
  output: [
    {
      format: "esm",
      entryFileNames: "[name].mjs",
      dir: out,
      sourcemap: true,
    },
    {
      format: "cjs",
      entryFileNames: "[name].cjs",
      dir: out,
      sourcemap: true,
    },
  ],
  plugins: [externals(), esbuild(), worker()],
});

export default [config];

src/index.ts

import { execute } from "@napolab/worker_thread";

import path from "./test.worker";

export const main = async () => {
  const worker = execute(path)("Hello, world!");

  worker.on("message", (message) => {
    console.log(message);
  });
};

void main();

src/test.worker.ts

import { parentPort } from "node:worker_threads";

import { create } from "@naporin0624/worker";

export default create<string>((workerData) => {
  parentPort?.postMessage({ welcome: workerData });
});