reactjsHow can I build a Progressive Web App (PWA) with ReactJS?

To build a Progressive Web App (PWA) with ReactJS, you need to follow these steps:

1. Install the required modules and dependencies:

npm install --save react react-dom react-router-dom

2. Create a index.js file and import the React and ReactDOM modules:

import React from 'react';
import ReactDOM from 'react-dom';

3. Create a App.js file and add the necessary components:

import React from 'react';

class App extends React.Component {
  render() {
    return (
      <div>
        <h1>My PWA App</h1>
      </div>
    );
  }
}

export default App;

4. Add the <App /> component to the index.js file:

import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';

ReactDOM.render(<App />, document.getElementById('root'));

5. Create a manifest.json file to define the app's metadata:

{
  "name": "My PWA App",
  "short_name": "My PWA App",
  "start_url": "/",
  "display": "standalone"
}

6. Create a service-worker.js file to enable offline support:

const cacheName = 'my-pwa-app-v1';
const filesToCache = [
  '/',
  '/index.html',
  '/index.js',
  '/manifest.json',
  '/service-worker.js',
];

self.addEventListener('install', function(e) {
  console.log('[ServiceWorker] Install');
  e.waitUntil(
    caches.open(cacheName).then(function(cache) {
      console.log('[ServiceWorker] Caching app shell');
      return cache.addAll(filesToCache);
    })
  );
});

7. Finally, register the service worker in the index.js file:

import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';

ReactDOM.render(<App />, document.getElementById('root'));

if ('serviceWorker' in navigator) {
  window.addEventListener('load', function() {
    navigator.serviceWorker.register('/service-worker.js').then(function(registration) {
      // Registration was successful
      console.log('ServiceWorker registration successful with scope: ', registration.scope);
    }, function(err) {
      // registration failed :(
      console.log('ServiceWorker registration failed: ', err);
    });
  });
}

With these steps, you can successfully build a Progressive Web App (PWA) with ReactJS.

Helpful links

• React Docs
• PWA Docs

Edit this code on GitHub