我已经进行了登录和注销操作以及 userReducer。如何将 AsyncStorage 与 Redux 集成?我使用 Redux Thunk 作为中间件。
我能够使用内部状态变量实现登录和注销,但我无法理解如何将其分解为操作和缩减器以及如何使用 AsyncStorage 来存储 accessToken
。
原始代码:
_onLogin = () => {
auth0.webAuth
.authorize({
scope: 'openid profile',
audience: 'https://' + credentials.domain + '/userinfo'
})
.then(credentials => {
this.setState({ accessToken: credentials.accessToken });
})
.catch(error => console.log(error));
};
_onLogout = () => {
if (Platform.OS === 'android') {
this.setState({ accessToken: null });
} else {
auth0.webAuth
.clearSession({})
.then(success => {
this.setState({ accessToken: null });
})
.catch(error => console.log(error));
}
};
loginAction.js:
import { LOGIN_USER } from './types';
import Auth0 from 'react-native-auth0';
var credentials = require('./auth0-credentials');
const auth0 = new Auth0(credentials);
export const loginUser = () => dispatch => {
auth0.webAuth
.authorize({
scope: 'openid profile',
audience: 'https://' + credentials.domain + '/userinfo'
})
.then(credentials =>
dispatch({
type: LOGIN_USER,
payload: credentials.accessToken
})
)
.catch(error => console.log(error));
}
logoutAction.js:
import { LOGOUT_USER } from './types';
import Auth0 from 'react-native-auth0';
var credentials = require('./auth0-credentials');
const auth0 = new Auth0(credentials);
export const logoutUser = () => dispatch => {
auth0.webAuth
.clearSession({})
.then(success =>
dispatch({
type: LOGOUT_USER,
payload: null
})
)
.catch(error => console.log(error));
}
userReducer.js:
import { LOGIN_USER, LOGOUT_USER } from '../actions/types';
const initialState = {
accessToken: null
}
export default function (state = initialState, action) {
switch (action.type) {
case LOGIN_USER:
_storeData = async () => {
try {
await AsyncStorage.setItem('accessToken', action.payload);
} catch (error) {
console.log(error)
}
}
return {
...state,
accessToken:action.payload
};
case LOGOUT_USER:
_removeData = async (accessToken) => {
try {
await AsyncStorage.removeItem(accessToken);
} catch (error) {
console.log(error)
}
}
return {
...state,
accessToken:action.payload
};
default:
return state;
}
}
我是 Redux 的新手,所以我尝试将原始代码转换为操作和缩减器,但我不确定我是否在 userReducer.js
中正确实现了 AsyncStorage?
最佳答案
为了持久化 redux state 我推荐你 redux-persist .
安装:
npm i -S redux-persist
用法:
首先配置redux store
// configureStore.js
import { createStore } from 'redux'
import { persistStore, persistReducer } from 'redux-persist'
import storage from 'redux-persist/lib/storage' // defaults to localStorage for web and AsyncStorage for react-native
import rootReducer from './reducers'
const persistConfig = {
key: 'root',
storage,
}
const persistedReducer = persistReducer(persistConfig, rootReducer)
export default () => {
let store = createStore(persistedReducer)
let persistor = persistStore(store)
return { store, persistor }
}
然后,用 PersistGate
包裹你的根组件
import { PersistGate } from 'redux-persist/integration/react'
// ... normal setup, create store and persistor, import components etc.
const App = () => {
return (
<Provider store={store}>
<PersistGate loading={null} persistor={persistor}>
<RootComponent />
</PersistGate>
</Provider>
);
};
关于javascript - 如何在 Redux 中使用 React Native AsyncStorage?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52352094/