deleteHeroService.ts

deleteHeroService.ts

/** DELETE: delete the hero from the server */
deleteHero (hero: Hero | number): Observable<Hero> {
  return Observable.create((observer) => {
    const id = typeof hero === 'number' ? hero : hero.id;
    const xhr = new XMLHttpRequest();
    xhr.open('DELETE', CONFIG.SERVER_URL + `heroes/${id}`, true);
    xhr.onload = () => {
      if (xhr.status === 200) {
        this.messageService.add(`HeroService: deleted hero with id:${id}`);
        observer.next(JSON.parse(xhr.responseText));
      }
      else {
        observer.error(xhr.response);
      }
    };
    xhr.send();
  });
}