Redux-saga put 方法不会触发 reducer答案

【问题标题】：Redux-saga put method doesn't trigger reducerRedux-saga put 方法不会触发 reducer
【发布时间】：2019-10-12 11:13:24
【问题描述】：

我试图通过在我的 redux saga 中调用 put 方法来触发 redux reducer，但它不会被触发，即使我返回应该在我的 reducer 中捕获的相同操作类型。

这是我的传奇：

export function* registrationSaga(action) {
  try {
    const response = yield call(registerUser, action.payload);
    console.log(response)
    yield put({ type: REGISTER_USER_SUCCESS, response })
  } catch(error) {
    yield put({ type: REGISTER_USER_ERROR, error });
  }
}

这是我的减速器：

export const registrationReducer = (state = {}, action) => {
let response = action.response;

switch(action.type) {
  case REGISTER_USER_SUCCESS: {
    console.log("successful registration")
    return { ...state, registration_success: response.success, registration_message: response.message };
  }

  case REGISTER_USER_ERROR:
    return { ...state, registration_success: response.success, registration_message: response.message };
  default:
    return state;
}
}

我希望在我的控制台中看到“成功注册”，并在我的组件中获得该响应作为道具，但这并没有发生。什么应该导致这个问题？

这是我的 rootReducer 和存储：

const rootReducer = () => combineReducers({
    registrationReducer,
    todoReducer
})

export default rootReducer;

并存储：

const sagaMiddleware = createSagaMiddleware()

export const store = createStore(
    rootReducer,
    applyMiddleware(sagaMiddleware)
);

sagaMiddleware.run(rootSaga)

【问题讨论】：

标签： javascript reactjs redux saga

【解决方案1】：

rootReducer不应该是调用combineReducers的函数，而应该是combineReducers的返回值：

const rootReducer = combineReducers({
    registrationReducer,
    todoReducer,
});

export default rootReducer;

Redux API

【讨论】：