@RequestMapping(
      value = "/exchange/{exchange_id}/mainSymbol/{main_symbol_id}",
      method = RequestMethod.POST)
  public @ResponseBody ResponseEntity<String> insertList(
      @PathVariable("exchange_id") String exchange_id,
      @PathVariable("main_symbol_id") String main_symbol_id,
      @RequestBody List<SymbolTradableDaily> list) {
    System.out.println("insertList");
    Gson gson = new Gson();
    String payload = "";
    MainSymbol mainSymbol = new MainSymbol();
    try {

      mainSymbol.setExchange_id(exchange_id);
      mainSymbol.setMain_symbol_id(main_symbol_id);
      service.insertSymbolTradableDailyTemp(mainSymbol, list);
    } catch (Exception e) {
      return new ResponseEntity<String>(
          gson.toJson(exceptionToJson(e)), HttpStatus.SERVICE_UNAVAILABLE);
    }

    payload = gson.toJson(mainSymbol);
    return getResponseEntity(payload);
  }