WildCard Route and Redirecting Routes

In this example we will be redirecting an non existing URL to a page not found page and we will also be writing the logic to redirect a root page of URL i.e “/” to a specific page.

• app-routing.module.ts

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { DeplartmentListComponent } from './deplartment-list/deplartment-list.component';
import { EmployeeListComponent } from './employee-list/employee-list.component';
import { PageNotFoundComponent } from './page-not-found/page-not-found.component';


const routes: Routes = [
  {path: '', redirectTo: '/departments', pathMatch: 'full'},
  {path: 'departments', component: DeplartmentListComponent},
  {path: 'employees', component: EmployeeListComponent},
  {path: '**', component: PageNotFoundComponent}
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule]
})
export class AppRoutingModule { }
export const routingComponents = [
  DeplartmentListComponent,
  EmployeeListComponent,
  PageNotFoundComponent
];

• app.module.ts

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

import { AppRoutingModule, routingComponents } from './app-routing.module';
import { AppComponent } from './app.component';
import { PageNotFoundComponent } from './page-not-found/page-not-found.component';

@NgModule({
  declarations: [
    AppComponent,
    routingComponents,
    PageNotFoundComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

• app.component.html

<h1>Routing and Navigation</h1>
<nav>
  <a routerLink="/departments"> Department </a> <a routerLink="/employees"> Employees </a>
</nav>
<router-outlet></router-outlet>

• app.component.ts

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

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'RoutingDemo';
}

• employee-list.component.ts

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

@Component({
  selector: 'app-employee-list',
  template: `
    <p>
      employee-list works!
    </p>
  `,
  styles: []
})
export class EmployeeListComponent implements OnInit {

  constructor() { }

  ngOnInit() {
  }
}

• deplartment-list.component.ts

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

@Component({
  selector: 'app-deplartment-list',
  template: `
    <p>
      deplartment-list works!
    </p>
  `,
  styles: []
})
export class DeplartmentListComponent implements OnInit {

  constructor() { }

  ngOnInit() {
  }
}

• page-not-found.component.ts

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

@Component({
  selector: 'app-page-not-found',
  template: `
    <h3>Page not found!</h3>
  `,
  styles: []
})
export class PageNotFoundComponent implements OnInit {

  constructor() { }

  ngOnInit() {
  }
}