Why you use RouterModule.forRoot(...) in all modules?

[kolkov]

Hi!
For what reason do you use RouterModule.forRoot(...) in all modules, and not just in the main?

[dancancro]

That practice came from jhipster.

From the Angular docs it looks like the only difference between them is that forRoot includes the Router service. You're right that it seems we should use .forChild. It's not that clear why though

Only call RouterModule.forRoot in the root AppRoutingModule (or the AppModule if that's where you register top level application routes). In any other module, you must call the RouterModule.forChild method to register additional routes.

I asked on JHipster's Gitter. Maybe someone else knows.