RouterStateSnapshot

What it does

Represents the state of the router at a moment in time.

How to use

@Component({templateUrl:'template.html'})
class MyComponent {
  constructor(router: Router) {
    const state: RouterState = router.routerState;
    const snapshot: RouterStateSnapshot = state.snapshot;
    const root: ActivatedRouteSnapshot = snapshot.root;
    const child = root.firstChild;
    const id: Observable<string> = child.params.map(p => p.id);
    //...
  }
}

Interface Description

RouterStateSnapshot is a tree of activated route snapshots. Every node in this tree knows about the "consumed" URL segments, the extracted parameters, and the resolved data.