@ngx-universal/config-loader NPM

@ngx-universal/config-loader

Loader for ngx-config that provides application settings to browser/server platforms

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NOTICE

This 5.x.x branch is intented to work with @angular v5.x.x. If you're developing on a later release of Angular than v5.x.x, then you should probably choose the appropriate version of this library by visiting the master branch.

Prerequisites

This library depends on Angular v4.0.0. Older versions contain outdated dependencies, might produce errors.

Also, please ensure that you are using Typescript v2.5.3 or higher.

Getting started

Installation

You can install @ngx-universal/config-loader using npm

npm install @ngx-universal/config-loader --save

Note: You should have already installed [@ngx-config/core].

Examples

ng-seed/universal is an officially maintained seed project, showcasing common patterns and best practices for @ngx-universal/config-loader.

Related packages

The following packages may be used in conjunction with @ngx-universal/config-loader:

Adding `@ngx-universal/config-loader` to your project (SystemJS)

Add map for @ngx-universal/config-loader in your systemjs.config

'@ngx-universal/config-loader': 'node_modules/@ngx-universal/config-loader/bundles/config-loader.umd.min.js'

Settings

Setting up `ConfigModule` to use `UniversalConfigLoader`

UniversalConfigLoader requires a browserLoader and a serverLoader to load application settings on both platforms.

Import ConfigModule using the mapping '@ngx-config/core' and append ConfigModule.forRoot({...}) within the imports property of app.module.
Import UniversalConfigLoader using the mapping '@ngx-universal/config-loader'.

Note: Considering the app.module is the core module in Angular application.

config.json

{
  "system": {
    "applicationName": "Mighty Mouse",
    "applicationUrl": "http://localhost:8000"
  },
  "seo": {
    "pageTitle": "Tweeting bird"
  },
  "i18n":{
    "locale": "en"
  }
}

app.module.ts

...
import { ConfigModule, ConfigLoader, ConfigStaticLoader } from '@ngx-config/core';
import { ConfigFsLoader } from '@ngx-config/fs-loader';
import { ConfigHttpLoader } from '@ngx-config/http-loader';
import { UniversalConfigLoader } from '@ngx-universal/config-loader';
...

export function configFactory(platformId: any, http: HttpClient): ConfigLoader {
  const serverLoader = new ConfigFsLoader('./public/assets/config.json'); // FILE PATH
  const browserLoader = new ConfigHttpLoader(http, './assets/config.json'); // API ENDPOINT

  return new UniversalConfigLoader(platformId, serverLoader, browserLoader);
}

@NgModule({
  declarations: [
    AppComponent,
    ...
  ],
  ...
  imports: [
    ConfigModule.forRoot({
      provide: ConfigLoader,
      useFactory: (configFactory),
      deps: [PLATFORM_ID, Http]
    }),
    ...
  ],
  ...
  bootstrap: [AppComponent]
})
export class AppModule {
  constructor(@Inject(PLATFORM_ID) private readonly platformId: any) {
  }
}

UniversalConfigLoader has two parameters:

serverLoader: ConfigLoader : the loader which will run on the server platform (ex: ConfigFsLoader, or ConfigStaticLoader)
browserLoader: ConfigLoader : the loader which will run on the browser platform (ex: ConfigHttpLoader, or ConfigStaticLoader)