220906 @RequestParam(required = false)으로 필요한 것만 받기

@PostMapping("/todo-list/today")
public ResponseEntity<?> createTodoList(@RequestParam String dueDate,
                                        @RequestParam(required = false) String planet,
                                        HttpServletRequest request) {
    return todoListService.createTodoList(dueDate, planet, request);
}

@RequestParam(required = false)으로 필요한 것만 받기