Redux状态未在函数组件中更新

Question

我正在开发一个使用redux的注册React应用程序。除了状态更新之外，其他一切都很正常。

我已经浏览了这里已经给出的几个建议，我似乎没有发现代码有什么问题。

authAction.js

import { API_URL } from '../../../constants/constants';
const LOGIN_SUCCESSFUL = 'LOGIN_SUCCESSFUL';
const LOGIN_LOADING = 'LOGIN_LOADING';
const LOGIN_FAILED = 'LOGIN_FAILED';

const login = values => {
let url = API_URL + 'login';
return async (dispatch) => {

dispatch({
type: LOGIN_LOADING
})
const response = await fetch (url, {
method: 'POST',
body: JSON.stringify(values),
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
if(response.status >=200 && response.status <= 299)
{
sessionStorage.setItem('_token', data.data.jwt)
dispatch({
type: LOGIN_SUCCESSFUL,
payload: {
isAuthenticated: true,
jwt: data.data.jwt ?? ''
}
});
}

dispatch({
type: LOGIN_FAILED,
payload: {
isAuthenticated: false,
jwt: '',
message: data?.message ?? 'Authentication failed.'
}
})
}
}
export { login, logout };

authReducer.js

const LOGIN_SUCCESSFUL = 'LOGIN_SUCCESSFUL';
const LOGIN_FAILED =  'LOGIN_FAILED';
const LOGIN_LOADING = 'LOGIN_LOADING';

const initialState = {
jwt: '',
isAuthenticated: false,
message: '',
loading: false,
error: false,
};
const authReducer = (state = initialState, action) => {
if(action.type === LOGIN_LOADING)
{
return {
...state,
message: 'Authenticating...',
loading: true
}
}
if(action.type === LOGIN_SUCCESSFUL)
{
return {
...state,
isAuthenticated: true,
jwt: action.payload.jwt,
message: action.payload.message,
laoding: false,
error: true
}
}
if(action.type === LOGIN_FAILED)
{
return {
...state,
jwt: '',
isAuthenticated: false,
loading: false
};
}
return initialState;
}

export default authReducer;

rootReducer.js其中我组合了其他还原程序

import { combineReducers } from "redux";
import userReducer from "./users/userReducer";
import authReducer from './users/authReducer';
import signupReducer from './users/signupReducer';
import postReducer from './postReducer'
const rootReducer = combineReducers({
user: userReducer,
auth: authReducer,
signup: signupReducer,
posts: postReducer
});
export default rootReducer;

signup.js，用于处理视图

import {useFormik } from 'formik';
import React, { useEffect } from 'react';
import { Helmet } from 'react-helmet';
import { Link, Navigate } from 'react-router-dom';
import { useSelector, useDispatch } from 'react-redux';
import * as Yup from 'yup';
import logo from '../../assets/img/logo1.jpeg';
import Error from '../../components/forms/Error';
import LandingLayout from '../layouts/landing';
import signup from '../../redux/actions/users/signupActions';
import Toast from '../../components/alerts/Toast';
const Signup = () => {
const {loading, error, status} = useSelector(state => state.signup);
const dispatch = useDispatch();
useEffect(()=>{
if(status)
{
setTimeout(() => {
return <Navigate to='/login' />
}, 2000);
}
}, [dispatch, status])
...
onSubmit: (values) => {
dispatch(signup(values));
}
...
export default Signup;

index.js

import React from 'react';
import ReactDOM from 'react-dom';
import { createStore, applyMiddleware } from 'redux';
import { Provider } from 'react-redux';
import thunk from 'redux-thunk'
import { composeWithDevTools } from 'redux-devtools-extension'
import './index.css';
import App from './App';
import reportWebVitals from './reportWebVitals';
import rootReducer from './redux/reducers/rootReducer';
const store = createStore(rootReducer, composeWithDevTools(applyMiddleware(thunk)));
ReactDOM.render(
<React.StrictMode>
<Provider store = {store}>
<App />
</Provider>
</React.StrictMode>,
document.getElementById('root')
);

当日志记录API调用的响应时，我得到了预期的响应，但UI上没有任何影响。

Answer 1

看来错误来自其他地方。正如前面所说，我所做的一切都很正确，除了rootReducer中包含的一个减速器userReducer的操作创建者返回了错误的有效载荷这一事实。

我对此发表了评论，其他一切都奏效了。

然而，一个减速器的细微错误是否会影响商店的整个工作？