Simple Angular 2 Service to read data from an http get request

all-time.service.ts

import { Injectable } from '@angular/core';
import { Http, Response } from '@angular/http';

@Injectable()
export class AllTimeService {

  constructor(private http: Http) { }

  getCampers = () => {
    let apiUrl: string = 'https://fcctop100.herokuapp.com/api/fccusers/top/alltime';
    return this.http
      .get(apiUrl)
      .map(response => response.json());
  }
}