$ ng new myPWA --mobile

$ ng new myPWA --service-worker

$ ng new myPWA

$ ng add @angular/pwa --project=myPWA

$ ng build --prod

NGSW Debug Info:

Driver state: NORMAL ((nominal))
Latest manifest hash: cd4716ff2d3e24f4292010c929ff429d9eeead73
Last update check: 9s215u

=== Version 34c3fd2361735b1330a23c32880640febd059305 ===

Clients: 7eb10c76-d9ed-493a-be12-93f305394a77

=== Version cd4716ff2d3e24f4292010c929ff429d9eeead73 ===

Clients: ee22d69e-37f1-439d-acd3-4f1f366ec8e1

=== Idle Task Queue ===
Last update tick: 4s602u
Last update run: 9s222u
Task queue:


Debug log:

$ ng set apps.0.serviceWorker=true

$ npm install @angular/service-worker --save

import { ServiceWorkerModule } from '@angular/service-worker';

import { environment } from '../environments/environment';

...
@NgModule({
  ...
  imports: [
    ...


  ]
})
export class AppModule { }

    ServiceWorkerModule.register('/ngsw-worker.js',
        { enabled: environment.production }),

{
  "index": "/index.html",
  "assetGroups": [...],
  "dataGroups": [...]
}

{
    "name": "app",
    "installMode": "prefetch",
    "resources": {...}
}

    "versionedFiles": [
      "/*.bundle.css",
      "/*.bundle.js",
      "/*.chunk.js"
    ],

    "files": [
      "/favicon.ico",
      "/index.html"
    ],

{
    "name": "assets",
    "installMode": "lazy",
    "updateMode": "prefetch",
    "resources": {...}
}

    "files": [
      "/assets/**"
    ],

    "urls": [
        "https://fonts.googleapis.com/**",
        "https://fonts.gstatic.com/**"
    ]

{
    "name": "api-freshness",
    "urls": [
      "/api/breakingnews/**"
    ],






}

    "cacheConfig": {
      "strategy": "freshness",
      "maxSize": 10,
      "maxAge": "12h",
      "timeout": "10s"
    }

    "cacheConfig": {
      "strategy": "performance",
      "maxSize": 100,
      "maxAge": "365d"
    }

{
    "version": 2,
    "name": "api-performance",
    "urls": [
      "/api/**"
    ],
    ...
}

import { SwUpdate } from '@angular/service-worker';

constructor(private swUpdate: SwUpdate) {}

this.swUpdate.available.subscribe(event => {
  let snackBarRef = this.snackBar
    .open('Newer version of the app is available', 'Refresh');

  snackBarRef.onAction().subscribe(() => {
    window.location.reload()
  })
})

import { SwPush } from '@angular/service-worker';

constructor(private swPush: SwPush) {}

subscribeToPush() {
  this.swPush.requestSubscription({
    serverPublicKey: this.VAPID_PUBLIC_KEY
  })
    .then(pushSubscription => {
      // Pass subscription object to backend
    })
}

{
  "notification": {










  }
}

    "title": "Very important notification",
    "body": "Angular Service Worker is cool!",
    "icon": "https://angular.io/assets/logo.png",
    "actions": [
      {
        "action": "gocheck",
        "title": "Go and check"
      }
    ],
    ...

ng set apps.0.serviceWorker=false
ng build --prod
...deploy

rm dist/ngsw.json
...deploy

self.addEventListener('install', e => { self.skipWaiting(); });

self.addEventListener('activate', e => {
  e.waitUntil(self.clients.claim());
  self.registration.unregister().then(
      () => { console.log('Unregistered old service worker'); });
});