docs: public static String doGet(String url, Map<String, String> params, String charset) throws IOException {
          HttpURLConnection conn = null;
          String rsp = null;
  
          try {
              String ctype = "application/x-www-form-urlencoded;charset=" + charset;
              String query = buildQuery(params, charset);
              conn = getConnection(buildGetUrl(url, query), METHOD_GET, ctype, null);
  
              rsp = getResponseAsString(conn);
          } finally {
              if (conn != null) {
                  conn.disconnect();
              }
          }
  
          return rsp;
      }