Pre-loading route data inside of app.routing.module.ts

app.routing.module.ts

import { NgModule } from '@angular/core';
import { RouterModule } from '@angular/router';

@NgModule({
  imports: [
    RouterModule.forRoot(
      [
        {
          path: 'books',
          loadChildren: () =>
            import('@razroo/razroo/books').then(
              module => module.RazrooBooksModule
            ),
          data: { preload: true }
        },
        {
          path: 'consulting',
          loadChildren: () =>
            import('@razroo/razroo/consulting').then(
              module => module.RazrooConsultingModule
            )
        },
      ],
      {
        initialNavigation: 'enabled',
        relativeLinkResolution: 'corrected'
      }
    )
  ],
  exports: [RouterModule]
})
export class RazrooAppRoutingModule {}