Angular 2 - Submodule routing and nested <router-outlet>

Question

I'm looking for a solution with Angular 2 for the scenario explained below:

In this scenario, the top-nav contains links to load submodules and sub-nav has links to update the submodule's contents.

The URLs should map as:

• /home => loads the home page in main component router outlet
• /submodule => loads the submodule in the main component router outlet and by default should show the submodule's home page and sub navbar
• /submodule/feature => loads the feature inside the submodule's router outlet

The app module (and app component) contains a top navbar to navigate to different submodules and the app component template could look like this

<top-navbar></top-navbar>
<router-outlet></router-outlet>

But here is the complexity. I need my submodules to have similar layout with a second level nav bar and their own router outlet to load their own components.

<sub-navbar></sub-navbar>
<router-outlet name='sub'></router-outlet>

I tried every options and search everywhere but couldn't find a solution to have a default template (like app component) in the sub-module with router outlet and also load the contents of submodule in the inner router outlet without losing the sub-nav.

I would appreciate any input or ideas

Answer 1

The html page will look like this.

Main Page

<top-navbar></top-navbar>
<router-outlet></router-outlet>

Sub Module Page

<sub-navbar></sub-navbar>
<router-outlet name='sub'></router-outlet>

on clicking navigation in top-nav bar the main route outlet will route respectively.

while clicking on sub-navbar the router-outlet [sub] will route respectively.

HTML is fine, the trick will came at writing app.routing

app.routing.ts

const appRoutes: Routes = [
  {
    path: 'login',
    component: LoginComponent
  },
  { path: 'home',
    component: homeComponent,
    children: [
      {
        path: 'module1',
        component: module1Component,
        children: [
          {
            path: 'submodule11',
            component: submodule11Component,
          },
          {
            path: '',
            redirectTo: 'submodule11',
            pathMatch: 'full'
          }
        ]
      },
      {
        path: 'module2',
        component: module2omponent,
        children: [
          {
            path: 'submodule21',
            component: submodule21Component,
          },
          {
            path: '',
            redirectTo: 'submodule21',
            pathMatch: 'full'
          }
        ]
      }
    ]
  },
  {
    path: 'about',
    component: aboutComponent
  }
]

Hope it will help you.

More details https://angular.io/guide/router