当我试图访问react组件中的存储时,@connect工作得很好。但我该如何在其他代码中访问它呢。例如:让我们说我想使用授权令牌来创建我的axios实例,可以在我的应用程序中全局使用,实现这一点的最佳方法是什么?
这是我的api。js
// tooling modules
import axios from 'axios'
// configuration
const api = axios.create()
api.defaults.baseURL = 'http://localhost:5001/api/v1'
api.defaults.headers.common['Authorization'] = 'AUTH_TOKEN' // need the token here
api.defaults.headers.post['Content-Type'] = 'application/json'
export default api
现在我想从我的商店访问一个数据点,这是什么样子,如果我试图在一个react组件中使用@connect获取它
// connect to store
@connect((store) => {
return {
auth: store.auth
}
})
export default class App extends Component {
componentWillMount() {
// this is how I would get it in my react component
console.log(this.props.auth.tokens.authorization_token)
}
render() {...}
}
有什么见解或工作流模式吗?
你可以根据我如何访问非反应组件的商店使用中间件?:
中间件
function myServiceMiddleware(myService) {
return ({ dispatch, getState }) => next => action => {
if (action.type == 'SOMETHING_SPECIAL') {
myService.doSomething(getState());
myService.doSomethingElse().then(result => dispatch({ type: 'SOMETHING_ELSE', result }))
}
return next(action);
}
}
使用
import { createStore, applyMiddleware } from 'redux'
const serviceMiddleware = myServiceMiddleware(myService)
const store = createStore(reducer, applyMiddleware(serviceMiddleware))
进一步阅读:Redux Docs >中间件
访问令牌的一个简单方法是将令牌放在LocalStorage或AsyncStorage中,使用React Native。
下面是一个React Native项目的例子
authReducer.js
import { AsyncStorage } from 'react-native';
...
const auth = (state = initialState, action) => {
switch (action.type) {
case SUCCESS_LOGIN:
AsyncStorage.setItem('token', action.payload.token);
return {
...state,
...action.payload,
};
case REQUEST_LOGOUT:
AsyncStorage.removeItem('token');
return {};
default:
return state;
}
};
...
和api.js
import axios from 'axios';
import { AsyncStorage } from 'react-native';
const defaultHeaders = {
'Content-Type': 'application/json',
};
const config = {
...
};
const request = axios.create(config);
const protectedRequest = options => {
return AsyncStorage.getItem('token').then(token => {
if (token) {
return request({
headers: {
...defaultHeaders,
Authorization: `Bearer ${token}`,
},
...options,
});
}
return new Error('NO_TOKEN_SET');
});
};
export { request, protectedRequest };
对于web,您可以使用Window。localStorage而不是AsyncStorage
这可能有点晚,但我认为最好的方法是使用axios.interceptors如下所示。导入url可能会根据项目设置而改变。
index.js
import axios from 'axios';
import setupAxios from './redux/setupAxios';
import store from './redux/store';
// some other codes
setupAxios(axios, store);
setupAxios.js
export default function setupAxios(axios, store) {
axios.interceptors.request.use(
(config) => {
const {
auth: { tokens: { authorization_token } },
} = store.getState();
if (authorization_token) {
config.headers.Authorization = `Bearer ${authorization_token}`;
}
return config;
},
(err) => Promise.reject(err)
);
}