WorkerUrl

Tool to generate worker and woklet bundles with webpack v5.

npm i --save-dev worker-url

webpack.config.js

const WorkerUrlPlugin = require('worker-url/plugin');

module.exports = {
  output: {
    publicPath: '/',
  },
  plugins: [
    new WorkerUrlPlugin(),
  ],
};

index.js

import { WorkerUrl } from 'worker-url';

const workerUrl = new WorkerUrl(new URL('./worker.js', import.meta.url), {
  name: 'worker',
});
const worker = new Worker(workerUrl);

const workletUrl = new WorkerUrl(new URL('./worklet.js', import.meta.url), {
  name: 'worklet',
});
audioContext.audioWorklet.addModule(workletUrl);

index.ts

import { WorkerUrl } from 'worker-url';

const workerUrl = new WorkerUrl(new URL('./worker.ts', import.meta.url), {
  name: 'worker',
});
const worker = new Worker(workerUrl);

const workletUrl = new WorkerUrl(new URL('./worklet.ts', import.meta.url), {
  name: 'worklet',
});
audioContext.audioWorklet.addModule(workletUrl);

Custom path

It is possible to set the relative path using the webpack publicPath:

webpack.config.js

const WorkerUrlPlugin = require('worker-url/plugin');

module.exports = {
  output: {
    publicPath: '/myRelativePath/',
  },
};

If the webpack configuration does not solve the problem, then you can use runtime routing with customPath:

index.js

const workerUrl = new WorkerUrl(new URL('./worker.js', import.meta.url), {
  name: 'worker',
  // Override original url
  customPath: () => {
    // Use any code
    return new URL('worker.js', window.location.href);
  },
});

index.ts

const workerUrl = new WorkerUrl(new URL('./worker.ts', import.meta.url), {
  name: 'worker',
  // Override original url
  customPath: () => {
    // Use any code
    return new URL('worker.js', window.location.href);
  },
});

Examples

Demo	Source
JS WorkerUrl	./js
TS WorkerUrl	./ts

What is the package for?

As of webpack 5, you can use Web Workers without external packages:
https://webpack.js.org/guides/web-workers/
The webpack offers a way to generate a Worker directly. The worker-url provides a flexible configuration of the project by generating URL instead of a Worker.

There is a problem with Worklet generation:
https://github.com/webpack/webpack/issues/11543
The worker-url allows you to generate Worklet URL in the same way as you generate Worker URL.

License

worker-url is MIT licensed.