code: public int getCurrentPage() {
      try {
        final int currentPage = _jsonObject.getJSONObject(META_OBJECT_FIELD).getInt("current_page");
        return currentPage;
      } catch (JSONException ex) {
        throw new QuandlRuntimeException("Could not find total_count field in results from Quandl", ex);
      }
    }
docs: Get the current page of this result set. You can specify the page number in the request. Throws a QuandlRuntimeException if Quandl
  response doesn't contain this field, although it should.
  
  @return the page number of this result set