Angular2 @angular/router 3.0.0-alpha.3 - How to get route name or path when route changes

Question

I\'m trying to get the current route name or route path in my app.component when the route changes so that I can use the route name as a page class around a wrapper div. I\'m t

Answer 1

Steve's answer is the one documented currently, but the url observable on ActivatedRoute is not firing for me except when I first hit the base url (ex: going from /index to /index/item works, but going from /index/item to index/item/2, index/dashboard, or even /index does not).

I'm not sure if the following solution is a best practice nor what the performance implications are, but I was able to get the active route on the NavigationEnd event of the router with the following:

import { Component, OnInit, OnDestroy } from '@angular/core';
import { ROUTER_DIRECTIVES, Router, NavigationEnd } from '@angular/router';

@Component({
    selector: 'navbar',
    directives: [ROUTER_DIRECTIVES], 
    template: `
                ...
              `    
})

export class NavBarComponent implements OnInit, OnDestroy {
    private sub: any;

    constructor(private router: Router) {
    }

    ngOnInit() {
        this.sub = this.router.events.subscribe(e => {
            if (e instanceof NavigationEnd) {
                console.log(e.url);
            } 
        });
    }


    ngOnDestroy() {
        this.sub.unsubscribe();
    }
}

This fires every time you change the route, regardless of how deep you are in the url tree or where you navigate to/from.

Answer 2

This would probably help,

import { CanActivate, Router, RouterStateSnapshot } from '@angular/router';

@Component({
  selector: 'my-component',
  templateUrl: 'my-component.html'
})
export class MyComponent implements CanActivate {
  constructor(private router: Router) {}

  canActivate(state: RouterStateSnapshot) {
   // this is the future route you are intended to visit
   console.log(state.url);
  }
}

More details at https://angular.io/docs/ts/latest/guide/router.html