Solving Issues with Names, Modules, and Other Strange Elements in Angular Universal

While the main app runs smoothly, attempting to serve the bundled SSR results in perplexing errors that I'm struggling to comprehend. All setup details are provided below for reference.

The process of creating a server-side app seems riddled with small issues at every turn. Hopefully, with time, things will become more streamlined.

I must admit, there are certain aspects of this setup that I find challenging as I am still getting accustomed to them. Any suggestions for enhancements would be greatly valued. Thank you.

Functions: Package JSON

{
  "name": "functions",
  "description": "Cloud Functions for Firebase",
  ...
}

<p><strong>The Server Functions</strong></p>

<pre><code>import 'zone.js/dist/zone-node';
...
export let ssrapp = functions.https.onRequest(app);

Server TS Config

{
    "compileOnSave": false,
    ...
}

<p><strong>The Origin App:</strong></p>

<p><strong>Package JSON</strong></p>

<pre><code>{
  "name": "my app",
  "version": "0.0.0",
  ...
}

<p><strong>TSConfig</strong></p>

<pre><code>{
  "compileOnSave": false,
  ...
}

<p><strong>TSConfig.server.json</strong></p>

<pre><code>{
    "extends": "../tsconfig.json",
    ...
}

<p><strong>App.server.module.ts</strong></p>

<pre><code>import { NgModule } from '@angular/core';
...

<p><strong>App.module.ts</strong></p>

<pre><code>import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
...

<p><strong>Main.ts</strong></p>

<pre><code>import { enableProdMode } from '@angular/core';
...

<p><strong>Main.server.ts</strong></p>

<pre><code>export { AppServerModule } from './app/app.server.module';

Answer №1

Here are some solutions:

  1. Try running npm run build --prod --aot
  2. If you have a name variable in your component, make sure to initialize it with a value (e.g. public name: any = "title";)

Answer №2

It seems like the reason for the "undefined error" you're encountering is because server-side code can't utilize browser objects such as window, document, and navigator.
To address this issue, you may want to consider the following steps:

  • Remove the BrowserAnimationsModule from your AppModule.
  • Include the NoopAnimationsModule in your ServerModule to prevent errors related to missing animations.
  • Create a new BrowserModule that contains the BrowserAnimationsModule and the AppModule. Make sure to bootstrap the AppComponent within BrowserModule.
  • In your main.ts file, bootstrap the new BrowserModule.

I hope these suggestions help resolve your problem.
For further clarification, check out this link: Need BrowserAnimationsModule in Angular but gives error in Universal

Additionally, if you encounter other unexpected issues with SSR, one tip is to systematically remove or comment out modules and components to pinpoint which part of your application is causing the problem. This approach proved effective for me when transitioning a project to Universal.

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