使用 combineReducer 的 Redux-saga 存储配置错误

Question

我尝试使用 Redux-saga 配置我的 saga 商店，但我不断收到关于 Store does not have a valid reducer. Make sure the argument passed to combineReducers is an object whose values are reducers.

我google查了下文档，调整我的代码还是有问题，希望有人能指出来。谢谢！

如果我更改此代码 const sagaMiddleware = ReduxSaga.default(); 到 const sagaMiddleware =()=> ReduxSaga.default(); 我收到其他错误：sagaMiddleware.run is not a function

Main.js

const { createStore, applyMiddleware } = require("redux");
const { createSelector } = require("reselect");
const ReduxSaga = require("redux-saga");
const createSagaMiddleware = require("redux-saga");
const reducer = require("./reducers/index");
const { workerSaga } = require("./sagas/sampleSaga.js");

const sagaMiddleware = ReduxSaga.default();
const store = createStore(reducer, applyMiddleware(sagaMiddleware));

sagaMiddleware.run(workerSaga);

Reducers/index.js

const { combineReducers } = require("redux");
const sample1 = require("./sample1");
const sample2 = require("./sample2");
const rootReducer = combineReducers({
  sample1,
  sample2
});
module.exports = rootReducer;

Reducers/sample1.js

const {
  STARTS_LOADING_SAMPLE,
  FETCH_SAMPLE,
  COMPLETE_FETCHING_SAMPLE
} = require("../actions/index");

const sampleInitialState = {
  fetching: false,
  complete: false,
  sample1: []
};
//switch statement....

module.exports = {
  sample1: (allReducer, sampleInitialState)
};

Answer 1

reducer 是一个纯函数，它接受前一个状态和一个动作，returns 接受下一个状态。但是您在 Reducers/sample1.js 文件中导出对象而不是函数。尝试将其更改为这样的内容：

...
module.exports = function(state = sampleInitialState, action) {
   // switch statements
};

关于减速器的更多信息：https://redux.js.org/basics/reducers

使用 combineReducer 的 Redux-saga 存储配置错误

Redux-saga store config error with combineReducer

reducers

redux

redux-saga