At what point are routed components initialized?

Here is a route setup I am working with:

path: ':id', component: ViewBookPageComponent },

After adding this route, an error keeps popping up:

Error: Cannot read property 'id' of null

I haven't included a null check in the component because I expect the property to be available once the component is navigated to. The authentication guard is redirecting to login before any book routes are shown.

You can find a demo of the issue here on StackBlitz:

https://stackblitz.com/edit/angular-ngrx-slice-demo-fork-with-id-route?file=src%2Fapp%2Fbooks%2Findex.ts

If I remove the route, the error disappears, indicating that Angular might be instantiating the component before routing to it.

javascriptangulartypescript

Answer №1

Are you finding a solution to this issue?


const routes: Routes = [
  {
    path: 'discover',
    component: DiscoverPageComponent,
  },
    children:[
      {
        path: 'search',
        component: SearchResultComponent,
      },
      children:[
         {
           path: 'book/:id',
           component: BookDetailPageComponent ,
         }
      ]
    ]

]

Answer №2

The AuthGuard is failing to secure the route because it must be specified within the Book module specifically. For additional information, refer to this question.

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