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angular-tour-of-heroes
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4: Add Services
[examples/angular-tour-of-heroes]
/
src
/
app
/
hero.service.ts
diff --git
a/src/app/hero.service.ts
b/src/app/hero.service.ts
index
7e0771a
..
8df8f33
100644
(file)
--- a/
src/app/hero.service.ts
+++ b/
src/app/hero.service.ts
@@
-1,6
+1,8
@@
import { Injectable } from '@angular/core';
import { Injectable } from '@angular/core';
+import { Observable, of } from 'rxjs';
import { Hero } from './hero';
import { HEROES } from './mock-heroes';
import { Hero } from './hero';
import { HEROES } from './mock-heroes';
+import { MessageService } from './message.service';
@Injectable({
@Injectable({
@@
-8,9
+10,10
@@
import { HEROES } from './mock-heroes';
})
export class HeroService {
})
export class HeroService {
- constructor() { }
+ constructor(
private messageService : MessageService
) { }
- getHeroes() : Hero[] {
- return HEROES;
+ getHeroes() : Observable<Hero[]> {
+ this.messageService.add('HeroService: fetching heroes...');
+ return of(HEROES);
}
}
}
}