Ngx-translate + LoadChildren

<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <title>angular2 playground</title>
    <link rel="stylesheet" href="style.css" />
    <link href="https://fonts.googleapis.com/css?family=Lato" rel="stylesheet">
    <script src="https://unpkg.com/zone.js/dist/zone.js"></script>
    <script src="https://unpkg.com/zone.js/dist/long-stack-trace-zone.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
    <script src="https://unpkg.com/systemjs@0.19.31/dist/system.js"></script>
    <script src="config.js"></script>
    
    <script>
    System.import('app')
      .catch(console.error.bind(console));
  </script>
  </head>

  <body>
    <my-app>
    loading...
  </my-app>
  </body>

</html>

System.config({
  //use typescript for compilation
  transpiler: 'typescript',
  //typescript compiler options
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  paths: {
    'npm:': 'https://unpkg.com/'
  },
  //map tells the System loader where to look for things
  map: {
    
    'app': './src',
    
    '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
    '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
    '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
    '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
    '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
    '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
    '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
    
    '@angular/core/testing': 'npm:@angular/core/bundles/core-testing.umd.js',
    '@angular/common/testing': 'npm:@angular/common/bundles/common-testing.umd.js',
    '@angular/compiler/testing': 'npm:@angular/compiler/bundles/compiler-testing.umd.js',
    '@angular/platform-browser/testing': 'npm:@angular/platform-browser/bundles/platform-browser-testing.umd.js',
    '@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic-testing.umd.js',
    '@angular/http/testing': 'npm:@angular/http/bundles/http-testing.umd.js',
    '@angular/router/testing': 'npm:@angular/router/bundles/router-testing.umd.js',
    
    '@ngx-translate/core': 'npm:@ngx-translate/core',
    "@ngx-translate/http-loader": 'npm:@ngx-translate/http-loader',
    
    'rxjs': 'npm:rxjs',
    'typescript': 'npm:typescript@2.0.2/lib/typescript.js'
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    rxjs: {
      defaultExtension: 'js'
    }
  }
});

//main entry point
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {AppModule} from './app.module';

platformBrowserDynamic().bootstrapModule(AppModule)

//our root app component
import {Component} from '@angular/core';
import {TranslateService} from '@ngx-translate/core';

@Component({
  selector: 'my-app',
   template: `
   <label>
        {{ 'HOME.SELECT' | translate }}
        <select #langSelect (change)="translate.use(langSelect.value)">
          <option *ngFor="let lang of translate.getLangs()" [value]="lang" [selected]="lang === translate.currentLang">{{ lang }}</option>
        </select>
   </label>
   <ul>
      <li>
      <a routerLink="">Home</a>
      </li>
       <li>
      <a routerLink="/about">About</a>
      </li>
      <li>
      <a routerLink="/contact">Contact</a>
      </li>
  </ul>
<router-outlet></router-outlet>
`,
  styles: [`
  ul { 
    display: flex;
    justify-content: space-around;
    list-style-type: none;
  }
	 p {
		color: blue;
	}`]
})
export class AppComponent {
  title = 'app works!';
  
  constructor(public translate: TranslateService) { }
}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
// import { HttpModule } from '@angular/http';
import { SharedModule } from './shared/shared.module';

import { AppComponent } from './app.component';
import appRoutes from './app.routes';

@NgModule({
  declarations: [
    AppComponent,
  ],
  imports: [
    BrowserModule,
    FormsModule,
    // HttpModule,
    SharedModule,
    appRoutes
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

//our root app component
import {Component} from '@angular/core'

export class ContactComponent {
  title = 'This is the contact component!';
}
import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-contact',
  template: `
    <h2>Hello there!</h2>
	  <p> {{ title }} </p>
`,
  styles: [`
	 p {
		color: blue;
	}`]
})
export class ContactComponent implements OnInit {
  title = 'This is the contact component!';
}

import { NgModule } from '@angular/core';
import { ContactComponent } from './contact.component';

import { CommonModule } from '@angular/common';
import contactRoutes from './contact.routes';

@NgModule({
  imports: [
    CommonModule,
    contactRoutes
  ],
  declarations: [ContactComponent]
})
export class ContactModule { }

import { Route, RouterModule } from '@angular/router';
import { ContactComponent } from './contact.component';

export const ContactRoutes: Route[] = [
  { path: '', component: ContactComponent }
];

export default RouterModule.forChild(ContactRoutes);

/* Import Routes Config */
import { RouterModule } from '@angular/router';

const routes = [
    { path: '', loadChildren: './src/home/home.module#HomeModule' },
    { path: 'contact', loadChildren: './src/contact/contact.module#ContactModule' },
    { path: 'about', loadChildren: './src/about/about.module#AboutModule' }
];


export default RouterModule.forRoot(routes);

import { NgModule } from '@angular/core';
import { HomeComponent } from './home.component';
import { SharedLazyModule } from '../shared/shared-lazy.module';
import { CommonModule } from '@angular/common';
import homeRoutes from './home.routes';

@NgModule({
  imports: [
    SharedLazyModule,
    homeRoutes
  ],
  declarations: [HomeComponent]
})
export class HomeModule { }

import { Route, RouterModule } from '@angular/router';
import { HomeComponent } from './home.component';

export const HomeRoutes: Route[] = [
  { path: '', component: HomeComponent }
];

export default RouterModule.forChild(HomeRoutes);

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-home',
  template: `
    <div>{{'HOME.HELLO'|translate}}</div>
  `
})
export class HomeComponent implements OnInit {

}

import { NgModule } from '@angular/core';
import { AboutComponent } from './about.component';

import { CommonModule } from '@angular/common';
import aboutRoutes from './about.routes';

@NgModule({
  imports: [
    CommonModule,
    aboutRoutes
  ],
  declarations: [AboutComponent]
})
export class AboutModule { }

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-about',
  template: `
    <h2>Hello again!!!</h2> 
    <p>{{ title }}</p>
  `
})
export class AboutComponent implements OnInit {
title = 'This is the about page!'

}

import { Route, RouterModule } from '@angular/router';
import { AboutComponent } from './about.component';

export const AboutRoutes: Route[] = [
  { path: '', component: AboutComponent }
];

export default RouterModule.forChild(AboutRoutes);

import { NgModule } from '@angular/core';
import { HttpModule } from '@angular/http';
import { CommonModule } from '@angular/common';
import { TranslateModule } from '@ngx-translate/core';

@NgModule({
  imports: [
    HttpModule,
    CommonModule,
    TranslateModule.forChild({}),
  ],
  exports: [
    CommonModule,
    TranslateModule
  ]
})
export class SharedLazyModule {}

import { NgModule } from '@angular/core';
import { HttpModule, Http } from '@angular/http';
import { CommonModule } from '@angular/common';
import { TranslateModule, TranslateLoader, TranslateService } from '@ngx-translate/core';
import { TranslateHttpLoader } from '@ngx-translate/http-loader';


// AoT requires an exported function for factories
export function HttpLoaderFactory(http: Http) {
   return new TranslateHttpLoader(http, 'assets/i18n/', '.json');
}

@NgModule({
    imports: [
      HttpModule,
      CommonModule,
      TranslateModule.forRoot({
         loader: {
           provide: TranslateLoader,
           useFactory: HttpLoaderFactory,
           deps: [Http],
         },
         isolate: false
       })
    ],
    exports: [
      CommonModule,
      TranslateModule
    ]
})
export class SharedModule {
    
     constructor(private translate: TranslateService) {
                  
        translate.addLangs(["en", "fr"]);
        translate.setDefaultLang('en');

        let browserLang = translate.getBrowserLang();
        translate.use(browserLang.match(/en|fr/) ? browserLang : 'en');
    }
}

* {
  font-family: lato;
}

{
  "HOME": {
    "SELECT": "Change language",
    "HELLO": "Hello from Home!!!!"
  }
}

{
  "HOME": {
    "SELECT": "Changer la langue",
    "HELLO": "Bonjour de la page d'accueil!!!!"
  }
}