Guide on integrating a Web Worker included in an NPM module within a NextJS project

Question

Guide on integrating a Web Worker included in an NPM module within a NextJS project

If you're experiencing issues, refer to the Github Repository here: https://github.com/kyledecot/next-worker-bug

Within my NextJS application, there is an NPM package that I have bundled using webpack/ts-loader. This package includes a web Worker & WorkerComponent.

My intention is to use npm install to incorporate this package from npmjs into my NextJS application and utilize the worker as follows:

<App>
  <WorkerComponent />
</App>

Currently, this setup is not functioning properly and generating the following error message:

../worker/lib/index.js (1:1323) @ eval
 ⨯ Error: Automatic publicPath is not supported in this browser
    at eval (../worker/lib/index.js:51:27)
    at eval (../worker/lib/index.js:53:11)
    at eval (../worker/lib/index.js:67:7)
    at eval (../worker/lib/index.js:3:32)
    at eval (../worker/lib/index.js:5:2)
    at (ssr)/../worker/lib/index.js (/Users/tabulous-xyz/Desktop/example/app/.next/server/app/page.js:173:1)
    at __webpack_require__ (/Users/tabulous-xyz/Desktop/example/app/.next/server/webpack-runtime.js:33:42)
    at eval (./src/app/page.tsx:7:64)
    at (ssr)/./src/app/page.tsx (/Users/tabulous-xyz/Desktop/example/app/.next/server/app/page.js:162:1)
    at Object.__webpack_require__ [as require] (/Users/tabulous-xyz/Desktop/example/app/.next/server/webpack-runtime.js:33:42)
    at JSON.parse (<anonymous>)
digest: "3559072519"

https://i.sstatic.net/oktqrjA4.png

I'm uncertain whether this issue is related to NextJS, Webpack, or another factor altogether.

typescript next.js webpack

Answer 1

Answer №1

If you're looking to optimize Web Worker bundling, look no further than the workerize-loader tool. This specialized tool is perfect for handling Web Workers within your Next.js application, effectively solving the common issue of "Automatic publicPath is not supported in this browser."

Follow these simple steps to implement this solution:

Step 1: Create a Web Worker file in your NPM package (e.g., my-worker.js)

self.onmessage = function (e) {
  // Your worker code goes here
  self.postMessage('Response from Worker');
};

Step 2: Install the workerize-loader package:

npm install --save-dev workerize-loader

Step 3: Update next.config.js

module.exports = {
  webpack: (config, { isServer }) => {
    if (!isServer) {
      config.module.rules.push({
        test: /my-worker\.js$/,
        use: { loader: 'workerize-loader' },
      });
    }
    return config;
  },
};

Step 4: Integrate the Web Worker into your Next.js component:

import Worker from 'my-npm-package/my-worker.js';

const MyComponent = () => {
  const worker = new Worker();

  worker.onmessage = (event) => {
    console.log('Message received from worker:', event.data);
  };

  const handleClick = () => {
    worker.postMessage('Hello, worker!');
  };

  return <button onClick={handleClick}>Run Worker</button>;
};

export default MyComponent;

Answer 2

If you're looking to optimize Web Worker bundling, look no further than the workerize-loader tool. This specialized tool is perfect for handling Web Workers within your Next.js application, effectively solving the common issue of "Automatic publicPath is not supported in this browser."

Follow these simple steps to implement this solution:

Step 1: Create a Web Worker file in your NPM package (e.g., my-worker.js)

self.onmessage = function (e) {
  // Your worker code goes here
  self.postMessage('Response from Worker');
};

Step 2: Install the workerize-loader package:

npm install --save-dev workerize-loader

Step 3: Update next.config.js

module.exports = {
  webpack: (config, { isServer }) => {
    if (!isServer) {
      config.module.rules.push({
        test: /my-worker\.js$/,
        use: { loader: 'workerize-loader' },
      });
    }
    return config;
  },
};

Step 4: Integrate the Web Worker into your Next.js component:

import Worker from 'my-npm-package/my-worker.js';

const MyComponent = () => {
  const worker = new Worker();

  worker.onmessage = (event) => {
    console.log('Message received from worker:', event.data);
  };

  const handleClick = () => {
    worker.postMessage('Hello, worker!');
  };

  return <button onClick={handleClick}>Run Worker</button>;
};

export default MyComponent;

Guide on integrating a Web Worker included in an NPM module within a NextJS project

Answer №1

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