public Rates getRates() {
		String url = BASE_URL + "rates";
		
		HttpGet get = new HttpGet(url);
		
		get.addHeader("Authorization", "Basic " + this.auth);
		
		try {
			HttpResponse response = client.execute(get);
			
	        return new Rates(response, this);

		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

		return null;
	}