X-Git-Url: http://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fapp%2Fhero.service.ts;h=649b856d72174286f9b026a9ead013311b8acb42;hb=fd92a662c471619278e561f25a4beb7ef78d0690;hp=a59d76b34df6adf37ced337d7cc2c32dbfb855eb;hpb=88fd95b95db3ee160af3eb441daaf69a6419c2b7;p=examples%2Fangular-tour-of-heroes

diff --git a/src/app/hero.service.ts b/src/app/hero.service.ts
index a59d76b..649b856 100644
--- a/src/app/hero.service.ts
+++ b/src/app/hero.service.ts
@@ -1,7 +1,8 @@
 import { Injectable } from '@angular/core';
-import { Observable, of } from 'rxjs';
+import { Observable, of, EMPTY } from 'rxjs';
 import { Hero } from './hero';
 import { HEROES } from './mock-heroes';
+import { MessageService } from './message.service';
 
 
 @Injectable({
@@ -9,9 +10,20 @@ import { HEROES } from './mock-heroes';
 })
 export class HeroService {
 
-  constructor() { }
+  constructor(private messageService : MessageService) { }
 
   getHeroes() : Observable<Hero[]> {
+    this.messageService.add('HeroService: fetching heroes...');
     return of(HEROES);
   }
+
+  getHero(id: number): Observable<Hero> {
+    this.messageService.add(`HeroService: requested hero id=${id}`);
+    const found: Hero | undefined = HEROES.find(hero => hero.id === id);
+    if (found === undefined) {
+      return EMPTY;
+    } else {
+      return of(found);
+    }
+  }
 }