已触发SAVE_ORDERS_SUCCESS但Redux未保存订单状态（已定位原因）

问题背景与根源 #

此前遇到的问题：代码已触发SAVE_ORDERS_SUCCESS，且reducer中能打印出有效payload，但误以为Redux未保存状态。实际问题根源：错误通过useSelector(state => state.auth)访问订单数据，而订单状态实际存储在getOrdersReducer对应的reducer分支中。

相关代码展示 #

1. 状态分发调用代码 #

dispatch(getOrdersList())
    .then(() => console.log('save'))
    .catch(err => console.log('eeeS'));

2. API请求函数 #

const getOrdersList = (data = {}) => {
  const url = `get_all_order`;
  const user = JSON.parse(localStorage.getItem('user'));

  const headers = {
    access_token: user.data.token
  };

  const body = {
    ...data,
    type: data.admin_id ? null : 'super'
  };

  return apiCall(url, body, headers).then(response => response);
};

export default {
  getOrdersList
};

3. 订单列表Reducer #

import {
  SAVE_ORDERS_SUCCESS,
  SAVE_ORDERS_FAILURE,
  GETTING_DATA
} from 'actions/types';

const initialState = {
  ordersData: null,
  isLoading: false,
  error: null
};

export default function (state = initialState, action) {
  const { type, payload } = action;
  console.log('🚀 ~ file: getOrdersReducer.js:15 ~ payload:', payload);

  switch (type) {
    case GETTING_DATA:
      return { ...state, isLoading: true, error: null };
    case SAVE_ORDERS_SUCCESS:
      return { ...state, isLoading: false, ordersData: payload.response };
    case SAVE_ORDERS_FAILURE:
      return { ...state, isLoading: false, error: action.payload };
    default:
      return state;
  }
}

4. 合并Reducer #

import { combineReducers } from 'redux';
import auth from './auth';
import message from './message';
import getOrdersReducer from './getOrdersReducer';

export default combineReducers({
  getOrdersReducer,
  auth,
  message
});

5. Action类型常量 #

export const GETTING_DATA = 'GETTING_DATA';
export const SET_MESSAGE = 'SET_MESSAGE';
export const CLEAR_MESSAGE = 'CLEAR_MESSAGE';

export const SAVE_ORDERS_SUCCESS = 'SAVE_ORDERS_SUCCESS';
export const SAVE_ORDERS_FAILURE = 'SAVE_ORDERS_FAILURE';

6. Store配置 #

import { legacy_createStore as createStore, applyMiddleware } from 'redux';
import { composeWithDevTools } from 'redux-devtools-extension';
import thunk from 'redux-thunk';
import rootReducer from './reducers';

const middleware = [thunk];

const store = createStore(
  rootReducer,
  composeWithDevTools(applyMiddleware(...middleware))
);

export default store;

内容的提问来源于stack exchange，提问作者Long.H