In this article, then, you\u2019ll learn how to build your first Angular Progressive Web App step by step, using Ignite UI to accelerate development and deliver an outstanding user experience. <\/p>\n\n\n\n
What Is a PWA in Angular? <\/h2>\n\n\n\n
An Angular Progressive Web App is a web application enhanced with native-like features such as offline access, background synchronization, caching, and installability. In Angular, PWAs are powered by Service Workers, which store and serve application files locally to ensure instant loading, even without a network connection. <\/p>\n\n\n\n
When you add PWA support to an Angular project, the framework automatically configures the necessary files and registration logic for you. You can do this with a single CLI command: <\/p>\n\n\n\n
ng add @angular\/pwa <\/pre>\n\n\n\nThis command automatically: <\/p>\n\n\n\n
- \n
- Adds a manifest.webmanifest file that defines your app name, icons, and theme colors. <\/li>\n\n\n\n
- Registers a Service Worker. <\/li>\n\n\n\n
- Configures caching rules in ngsw-config.json. <\/li>\n\n\n\n
- Makes your app installable on both desktop and mobile devices. <\/li>\n<\/ul>\n\n\n\n
Behind the scenes, Angular\u2019s Service Worker caches static assets like JavaScript bundles, images, and CSS files. It can also cache API responses based on custom rules you define in ngsw-config.json. This improves perceived performance, allowing your app to open instantly on repeat visits and function reliably when offline. <\/p>\n\n\n\n
Angular\u2019s built-in tooling simplifies this process dramatically. You don\u2019t have to manually handle caching logic or manifest setup. Everything is scaffolded and optimized automatically, leaving you free to focus on your app\u2019s functionality and design. <\/p>\n\n\n\n
Setting Up Your Angular PWA <\/h2>\n\n\n\n
Step 1: Create a New Angular Project <\/strong> <\/p>\n\n\n\n
ng new angular-pwa-demo \ncd angular-pwa-demo<\/pre>\n\n\n\n
Optionally, you can use our low-code App Builder\u2122 to jump-start your project and generate Angular code instantly. In that case, skip step 3 and just run npm install once you download the app. <\/p>\n\n\n\n
Step 2: Add PWA Support<\/strong> <\/p>\n\n\n\n
ng add @angular\/pwa <\/pre>\n\n\n\n
Step 3: Install Ignite UI for Angular<\/strong> <\/p>\n\n\n\n
ng add igniteui-angular <\/pre>\n\n\n\n
You can skip this step if you created your project using App Builder. <\/p>\n\n\n\n
Step 4: Start<\/strong> <\/p>\n\n\n\n
When you\u2019re ready to test your app as an actual PWA (with caching and offline support): <\/p>\n\n\n\n
ng build --configuration production \nnpm install -g angular-http-server \nangular-http-server --path dist\/angular-pwa-demo\/browser -p 3200<\/pre>\n\n\n\n
Ignite UI offers over 100 UI components, from data grids<\/a> and charts to navigation and input controls \u2014 ready for enterprise-grade applications. You can follow this getting started guide<\/a> to run it properly if needed. <\/p>\n\n\n\n
Your app is now installable and PWA-ready. <\/p>\n\n\n\n
Building the UI with Ignite UI for Angular <\/h2>\n\n\n\n
Once you\u2019ve installed Ignite UI for Angular, you can start building your PWA\u2019s user interface by importing the components you need and using them directly in your templates. <\/p>\n\n\n\n
Example:<\/strong> <\/p>\n\n\n\n
![\"Angular](\"https:\/\/www.infragistics.com\/blogs\/wp-content\/uploads\/2025\/11\/ignite-ui-imports-code.png\")
<\/figure>\n\n\n\nYou can use your components in the html like this: <\/p>\n\n\n\n
![\"Angular](\"https:\/\/www.infragistics.com\/blogs\/wp-content\/uploads\/2025\/11\/ignite-ui-pie-chart-grid-code.png\")
<\/figure>\n\n\n\nAdd a Navbar:<\/strong> <\/p>\n\n\n\n
<igx-navbar title=\"PWA Dashboard\"><\/igx-navbar> <\/pre>\n\n\n\n
Display Data Using the Grid:<\/strong> <\/p>\n\n\n\n
<igx-grid [data]=\"northwindEmployees\" primaryKey=\"employeeID\" [allowFiltering]=\"true\"\u00a0filterMode=\"excelStyleFilter\" class=\"grid\"> \n <igx-column field=\"employeeID\" dataType=\"number\" header=\"employeeID\" [filterable]=\"true\" [sortable]=\"true\" [selectable]=\"false\"><\/igx-column> \n <igx-column field=\"lastName\" dataType=\"string\" header=\"lastName\" [filterable]=\"true\" [sortable]=\"true\" [selectable]=\"false\"><\/igx-column> \n <igx-column field=\"firstName\" dataType=\"string\" header=\"firstName\" [filterable]=\"true\" [sortable]=\"true\" [selectable]=\"false\"><\/igx-column> \n <\/igx-grid><\/pre>\n\n\n\n
Add a Chart:<\/strong> <\/p>\n\n\n\n
<igx-pie-chart [dataSource]=\"northwindEmployees\" labelMemberPath=\"title\" valueMemberPath=\"employeeID\" class=\"pie-chart\"><\/igx-pie-chart> <\/pre>\n\n\n\n
These examples are simplified but demonstrate how easy it is to build responsive, accessible UIs with Ignite UI for Angular. The components are optimized for mobile, touch, and performance \u2014 key traits of a modern Angular PWA. Do not forget css. <\/p>\n\n\n\n
Optimizing Performance & Offline Experience <\/h2>\n\n\n\n
Performance and reliability are key to delivering a high-quality Progressive Web App (PWA). You can read our guide on how to Improve Performance of Angular App<\/a> and follow the best practices outlined there to ensure your application loads fast and works seamlessly offline. <\/p>\n\n\n\n
1. Audit Your Current Performance<\/strong> <\/p>\n\n\n\n
Use C<\/strong>hrome DevTools \u2192 Lighthouse to measure performance and PWA readiness.
Aim for scores above 90 in both Performance<\/em> and PWA<\/em> categories. <\/p>\n\n\n\n![\"Angular](\"https:\/\/www.infragistics.com\/blogs\/wp-content\/uploads\/2025\/11\/ignite-ui-performance-accessibility-best-practices-seo.png\")
<\/figure>\n\n\n\n2. Implement Lazy Loading<\/strong> <\/p>\n\n\n\n
Reduce your app\u2019s initial bundle size by loading modules and routes only when needed. <\/p>\n\n\n\n
Example: <\/strong><\/p>\n\n\n\n
![\"Angular](\"https:\/\/www.infragistics.com\/blogs\/wp-content\/uploads\/2025\/11\/ignite-ui-lazy-load-code.png\")
<\/figure>\n\n\n\n3. Optimize Caching & Offline Strategy<\/strong> <\/p>\n\n\n\n
Configure Angular\u2019s Service Worker (ngsw-config.json) to prefetch essential assets and cache API data for offline use. Use Chrome DevTools \u2192 Network \u2192 Offline<\/em> to verify that your app loads successfully without a network connection. <\/p>\n\n\n\n
![\"Angular](\"https:\/\/www.infragistics.com\/blogs\/wp-content\/uploads\/2025\/11\/ignite-ui-angular-pwa-dashboard.png\")
<\/figure>\n\n\n\n4. Leverage Ignite UI\u2019s Optimization<\/strong> <\/p>\n\n\n\n
![\"\"](\"https:\/\/www.infragistics.com\/blogs\/wp-content\/uploads\/2025\/11\/image-7.png\")
<\/figure>\n\n\n\n