#How to #Angular #PWA

With the angular cli, it is really handy to make one’s angular app into a Progressive Web App.

Add PWA capabilities

Just add @angular/pwa module to your angular app using the cli.

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$ ng add @angular/pwa

This adds the PWA module and generates the default PWA featuers with the service-worker configured for basic assets cache. It also generates a manifest.webmanifest and few icons.

Update ngsw-config.json

If you have more assets to be cached by the service worker to be more of a PWA, update the ngsw-config.json like below:

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{
  "$schema": "./node_modules/@angular/service-worker/config/schema.json",
  "index": "/index.html",
  "assetGroups": [
    {
      "name": "app",
      "installMode": "prefetch",
      "resources": {
        "urls": [
          "https://fonts.googleapis.com/css2?family=Nunito:wght@200;400;800&display=swap",
          "https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap.min.css",
          "https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css",
          "https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500&display=swap",
          "https://fonts.googleapis.com/icon?family=Material+Icons"
        ],
        "files": [
          "/favicon.ico",
          "/index.html",
          "/manifest.webmanifest",
          "/*.css",
          "/*.js"
        ]
      }
    },
    {
      "name": "assets",
      "installMode": "lazy",
      "updateMode": "prefetch",
      "resources": {
        "files": [
          "/assets/**",
          "/*.(json|svg|cur|jpg|jpeg|png|apng|webp|avif|gif|otf|ttf|woff|woff2)"
        ]
      }
    }
  ]
}

Here I have also added the URLs for the static CDN resources like bootstrap.min.css

Tip: Use PWA assets generators such as ngx-pwa-icons or pwa-asset-generator to generate icons for your PWA precisly for each devices.

#How to #Angular #PWA