@ngx-universal/translate-loader NPM

@ngx-universal/translate-loader

Loader for ngx-translate 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 Older versions contain outdated dependencies, might produce errors.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/translate-loader using npm

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

Note: You should have already installed @ngx-translate/core.

Examples

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

Related packages

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

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

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

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

Settings

Setting up `@ngx-translate` to use `UniversalTranslateLoader`

UniversalTranslateLoader requires a browserLoader (ex: TranslateHttpLoader) and settings (path prefix and suffix) for the built-in fs-loader to load translations on both platforms.

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

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

app.module.ts

...
import { HttpClient } from '@angular/common/http';
import { TranslateModule, TranslateLoader } from '@ngx-translate/core';
import { TranslateHttpLoader } from '@ngx-translate/http-loader';
import { UniversalTranslateLoader } from '@ngx-universal/translate-loader';
...

export function translateFactory(platformId: any, http: HttpClient): TranslateLoader {
  const browserLoader = new TranslateHttpLoader(http);

  return new UniversalTranslateLoader(platformId, browserLoader, './public/assets/i18n');
}

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

UniversalTranslateLoader has four parameters:

platformId: any : the platform identifier (should be injected to module constructor by the PLATFORM_ID token)
browserLoader: TranslateLoader : the loader which will run on the browser platform (ex: TranslateHttpLoader)
prefix: string : path prefix (by default '/assets/i18n/')
suffix: string : file extension/path suffix (by default '.json')