reducer-更新完整状态

我想在reducer中添加一个case来设置完整的状态,而不是任何特定的属性。

更新特定属性[ SET_SELECTED_PAGE,UPDATE_MESSAGE_DISPLAYED ]工作正常。但当我试着 SET_INIT_DATA 我搞错了 Parsing error: Unexpected token, expected "," .有效载荷 将具有完整的json。

我的状态会像

{
  "user": "",
  "selectedPage": "home",
  "message": "Message from admin",
  ...
}

 const reducer = (state, action) => {
      switch (action.type) {
        case "SET_SELECTED_PAGE":
          return {
             ...state,
            selectedPage: action.payload 
          };
        case "UPDATE_MESSAGE_DISPLAYED":
          return {
              ...state,
              messageDisplayed: action.payload 
            };
      case "SET_INIT_DATA":
          return {
              action.payload // getting error Parsing error: Unexpected token, expected ","
           }; 
        default:
          throw new Error();
      }
    };