projecte_ionic/node_modules/@schematics/angular/app-shell/app-shell-long.md

An app shell lets Universal render a portion of your application via a route at build time. This gives users a meaningful first paint of your application that appears quickly because the browser can simply render the HTML without the need to initialize any JavaScript.

Use this command with a routing app that is accompanied by a Universal server-side app.

To create an app shell, use the following command.

ng generate app-shell my-app

• my-app is the name of your client application
• server-app is the name of the Universal (server) application

The command adds two new architect build targets to your angular.json configuration file (along with a few other changes).

"server": { "builder": "@angular-devkit/build-angular:server", "options": { "outputPath": "dist/my-app-server", "main": "src/main.server.ts", "tsConfig": "src/tsconfig.server.json" } }, "app-shell": { "builder": "@angular-devkit/build-angular:app-shell", "options": { "browserTarget": "my-app:build", "serverTarget": "my-app:server", "route": "shell" } }

To verify the that the app has been built with the default shell content:

1. Run the app-shell target.

   ng run my-app:app-shell

2. Open dist/app-shell/index.html in your browser.

The default text "app-shell works!" verifies that the app-shell route was rendered as part of the output.