Hash Location Strategy in Angular 2

Question

I'm trying to create an application with hash location strategy, but it does not add the hash to the url. For instance when I click on a button associated with { path: '/polls', name: 'Polls', component: PollsComponent } it loads the page with this url : localhost:3000/polls.

What do I have to change to get the hash location strategy? Why do I have to set the default base url if I want to use hash location strategy?

This is the routing in the app.component.ts where all the routing is defined:

import {Component} from 'angular2/core'

import {HTTP_PROVIDERS, Http} from 'angular2/http';
import 'rxjs/Rx'; // load the full rxjs
import {ROUTER_PROVIDERS, RouteConfig , ROUTER_DIRECTIVES} from  'angular2/router';

import { ResultsComponent } from './results/results.component'
import { VotingCardsComponent } from     './votingcards/votingcards.component'
import { DashBoardComponent } from './dash/dash.component'
import { PollsComponent } from './pollslist/pollslist.component'

@Component({
selector: 'my-app',
templateUrl: 'app/app.component.html',
directives: [ROUTER_DIRECTIVES, ResultsComponent, VotingCardsComponent, DashBoardComponent],
providers: [HTTP_PROVIDERS,
ROUTER_PROVIDERS]
})

@RouteConfig([

    { path: '/vote', name: 'VotePage', component: VotingCardsComponent },
    { path: '/votepoll/:id', name: 'VotePoll', component: VotingCardsComponent },
    { path: '/results', name: 'Results', component: ResultsComponent },
    { path: '/polls', name: 'Polls', component: PollsComponent },
    { path: '/', name: 'DashBoard', component: DashBoardComponent, useAsDefault: true }
])

export class AppComponent { }

And this is my main.ts where I configure the base url:

import {bootstrap}    from 'angular2/platform/browser';
import {AppComponent} from './app.component';

//this is to avoid the href empty issue
import {provide} from 'angular2/core';
import {APP_BASE_HREF, ROUTER_PROVIDERS} from 'angular2/router';

    bootstrap(AppComponent, [
    //this is to avoid the href empty issue
    ROUTER_PROVIDERS,
    provide(LocationStrategy, { useClass: HashLocationStrategy }),
    provide(APP_BASE_HREF, { useValue: '/' })

]);

Solution 1

ROUTER_PROVIDERS should not be added to child components,

only to

providers: [ROUTER_PROVIDERS]

or alternatively only to

bootstrap(AppComponent, [ROUTER_PROVIDERS]);

HTTP_PROVIDERS are in my opinion also a better fit for root component or bootstrap() but it doesn't break anything to add them somewhere else.

(See also Routing error with angular 2 and IIS)

Solution 2

You can use the option "useHash" in RouterModule.forRoot().

RouterModule.forRoot(appRoutes, {useHash: true});

https://discuss.atom.io/t/angular-2-routes-breaking-on-electron-app-refresh/28370/4

Solution 3

Everything worked fine with the sample code OP posted as with what is in the accepted answer. But as a minor note, the format required to changing the Hash Location Strategy in the bootstrap file as of RC.4 goes like this:

{ provide: LocationStrategy, useClass: HashLocationStrategy },

Comments

[Pradeep]

This helped me as this is more suitable for Angular 2 final (I am on 2.2.3). All other answers are for older versions of Angular 2.

[TRiNE]

You are having a huge misunderstanding.