pokedex.service.ts

@Injectable()
export class PokedexService {
  private baseUrl: string ='https://pokeapi.co/api/v2/';
  
  constructor(private http: Http) { }
  
  getPokemon(index:number) : Observable<Pokemon> {
    return this.http.get(`${this.baseUrl}pokemon/${index}`)
              .map((result:Response) => result.json())
              .map((res) => {return new Pokemon(index, res.name, res.sprites.front_default)})
  }
}