Angular Router Demo with Internal pages, Public pages, error pages, Layouts

<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <script type="text/javascript" charset="utf-8">
      window.AngularVersionForThisPlunker = 'latest'
    </script>
    <title>angular playground</title>
    <link rel="stylesheet" href="style.css" />
    <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
    <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>
    <app-main>loading...</app-main>
  </body>

</html>

/* Styles go here */

### Angular Starter Plunker - Typescript

var angularVersion;
if(window.AngularVersionForThisPlunker === 'latest'){
  angularVersion = ''; //picks up latest
}
else {
  angularVersion = '@' + window.AngularVersionForThisPlunker;
}

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'+ angularVersion + '/bundles/core.umd.js',
    '@angular/common': 'npm:@angular/common' + angularVersion + '/bundles/common.umd.js',
    '@angular/compiler': 'npm:@angular/compiler' + angularVersion  + '/bundles/compiler.umd.js',
    '@angular/platform-browser': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic.umd.js',
    '@angular/http': 'npm:@angular/http' + angularVersion + '/bundles/http.umd.js',
    '@angular/router': 'npm:@angular/router' + angularVersion +'/bundles/router.umd.js',
    '@angular/forms': 'npm:@angular/forms' + angularVersion + '/bundles/forms.umd.js',
    '@angular/animations': 'npm:@angular/animations' + angularVersion + '/bundles/animations.umd.js',
    '@angular/platform-browser/animations': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-animations.umd.js',
    '@angular/animations/browser': 'npm:@angular/animations' + angularVersion + '/bundles/animations-browser.umd.js',
    
    '@angular/core/testing': 'npm:@angular/core' + angularVersion + '/bundles/core-testing.umd.js',
    '@angular/common/testing': 'npm:@angular/common' + angularVersion + '/bundles/common-testing.umd.js',
    '@angular/compiler/testing': 'npm:@angular/compiler' + angularVersion + '/bundles/compiler-testing.umd.js',
    '@angular/platform-browser/testing': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-testing.umd.js',
    '@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic-testing.umd.js',
    '@angular/http/testing': 'npm:@angular/http' + angularVersion + '/bundles/http-testing.umd.js',
    '@angular/router/testing': 'npm:@angular/router' + angularVersion + '/bundles/router-testing.umd.js',
    'tslib': 'npm:tslib@1.6.1',
    'rxjs': 'npm:rxjs',
    'typescript': 'npm:typescript@2.2.1/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)

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'

import { AuthGuard } from 'src/auth.guard.ts';

import { AppComponent } from './app.component';
import { InternalComponent } from 'src/layouts/internal.component';
import { PublicComponent } from 'src/layouts/public.component';

import { router } from './app.router'

@NgModule({
  imports: [BrowserModule, router],
  declarations: [AppComponent, InternalComponent, PublicComponent],
  providers: [AuthGuard],
  bootstrap: [AppComponent],
})
export class AppModule {
}

import { Component } from '@angular/core'

@Component({
  selector: 'app-main',
  template: `
    <h2>App</h2>
    <a routerLink="login">Login page</a>
    <br />
    <a routerLink="heroes">Heroes page</a>
    <br />
    <a routerLink="reeeee">Error page</a>
    <hr />
    <router-outlet></router-outlet>
  `,
})
export class AppComponent {
}

import { Component } from '@angular/core'

@Component({
  selector: 'app-internal',
  template: `
    <h2>Internal layout</h2>
    <hr />
    <router-outlet></router-outlet>
  `,
})
export class InternalComponent {
}

import { Component } from '@angular/core'

@Component({
  selector: 'app-public',
  template: `
    <h2>Public layout</h2>
    <hr />
    <router-outlet></router-outlet>
  `,
})
export class PublicComponent {
}

import { RouterModule, Routes } from '@angular/router';

import { AuthGuard } from 'src/auth.guard';
import { ModuleWithProviders } from '@angular/core';

import { InternalComponent } from 'src/layouts/internal.component';
import { PublicComponent } from 'src/layouts/public.component';

export const routes: Routes = [
  { path: '', redirectTo: 'heroes', pathMatch: 'full' },

  {
    path: '',
    canActivateChild: [AuthGuard],
    component: InternalComponent,
    children: [
      { path: 'heroes', loadChildren: 'src/heroes/heroes.module#HeroesModule' },
    ],
  },

  {
    path: '',
    component: PublicComponent,
    children: [
      { path: 'login', loadChildren: 'src/login/login.module#LoginModule' },
      // { path: 'error', loadChildren: 'src/error/error.module#ErrorModule' },
    ],
  },

  // { path: '**', redirectTo: 'error' },
];

export const router: ModuleWithProviders = RouterModule.forRoot(routes);

import { NgModule } from '@angular/core';
import { LoginComponent } from './login.component';

import { router } from './login.router';

@NgModule({
  imports: [router],
  declarations: [LoginComponent],
})
export class LoginModule {
}

/*
import { NgModule } from '@angular/core';
import { ErrorComponent } from './error.component';

import { router } from './error.router';

@NgModule({
  imports: [router],
  declarations: [ErrorComponent],
})
export class ErrorModule {
}
*/

import { CanActivateChild, Router } from '@angular/router';

import { Injectable } from '@angular/core';

@Injectable()
export class AuthGuard implements CanActivateChild {
  constructor(private router: Router) { }

  canActivateChild() {
    if (localStorage.getItem('user')) {
      return true;
    }

    this.router.navigate(['/login']);
    return false;
  }
}

import { NgModule } from '@angular/core';
import { HeroesComponent } from './heroes.component';

import { router } from './heroes.router';

@NgModule({
  imports: [router],
  declarations: [HeroesComponent],
})
export class HeroesModule {
}

import { Component } from '@angular/core'

@Component({
  selector: 'app-heroes',
  template: `
    > heroes
  `,
})
export class HeroesComponent {
}

import { RouterModule, Routes } from '@angular/router';

import { HeroesComponent } from './heroes.component';
import { ModuleWithProviders } from '@angular/core';

const routes: Routes = [
  { path: '', component: HeroesComponent },
];

export const router: ModuleWithProviders = RouterModule.forChild(routes);

import { RouterModule, Routes } from '@angular/router';

import { LoginComponent } from './login.component';
import { ModuleWithProviders } from '@angular/core';

const routes: Routes = [
  { path: '', component: LoginComponent },
];

export const router: ModuleWithProviders = RouterModule.forChild(routes);

import { Component } from '@angular/core'

@Component({
  selector: 'app-login',
  template: `
    <button (click)="login()">Click to login</button>
    <button (click)="logoff()">Click to logoff</button>
    
    Current user: {{ user }}
  `,
})
export class LoginComponent {
  login() {
    localStorage.setItem('user', Math.random().toString(26));
  }
  
  logoff() {
    localStorage.clear();
  }
  
  get user() {
    return localStorage.getItem('user');
  }
}