如何在axios拦截器中编写重定向而不重新加载

Question

我使用axios拦截器来维护内部服务器错误。如果响应有错误而没有重新加载，我需要重定向到另一个url。下面的代码我使用了location.href。所以它在重新装货。我需要一个不刷新页面就可以重定向的解决方案。

我试过“重定向”在反应路由器。但这对我不管用。

export function getAxiosInstance() {
    const instance = axios.create();
    const token    = getJwtToken();

    // Set the request authentication header
    instance.defaults.headers.common['Authorization'] = `Bearer ${token}`;

    // Set intercepters for response
    instance.interceptors.response.use(
        (response) => response,
        (error) => {
            if (config.statusCode.errorCodes.includes(error.response.status)) {
                return window.location.href = '/internal-server-error';
            }

            return window.location.href = '/login';
        }
    );

    return instance;
}

有人能帮我解决这个问题吗？

Answer 1

这将利用导入缓存的优势。

// history.js
import { createBrowserHistory } from 'history'

export default createBrowserHistory({
  /* pass a configuration object here if needed */
})


// index.js (example)
import { Router } from 'react-router-dom'
import history from './history'
import App from './App'

ReactDOM.render((
  <Router history={history}>
    <App />
  </Router>
), holder)


// interceptor.js
import axios from 'axios';
import cookie from 'cookie-machine';
import history from '../history';

axios.interceptors.response.use(null, function(err) {
  if ( err.status === 401 ) {
    cookie.remove('my-token-key');
    history.push('/login');
  }

  return Promise.reject(err);
});

Answer 2

我通过将useHistory()从<Router>内部传递给axios拦截器来解决这个问题。

App.js：

// app.js

function App() {
  return (
    <Router>
      <InjectAxiosInterceptors />

      <Route ... />
      <Route ... />
    </Router>
  )
}

InjectAxiosInterceptors.js：

import { useEffect } from "react"
import { useHistory } from "react-router-dom"
import { setupInterceptors } from "./plugins/http"

function InjectAxiosInterceptors () {
  const history = useHistory()

  useEffect(() => {
    console.log('this effect is called once')
    setupInterceptors(history)
  }, [history])

  // not rendering anything
  return null
}

plugins/http.js：

import axios from "axios";

const http = axios.create({
  baseURL: 'https://url'
})

/**
 * @param {import('history').History} history - from useHistory() hook
 */
export const setupInterceptors = history => {
  http.interceptors.response.use(res => {
    // success
    return res
  }, err => {
    const { status } = err.response
  
    if (status === 401) {
      // here we have access of the useHistory() from current Router
      history.push('/login')
    }
  
    return Promise.reject(err)
  })
}

export default http

Answer 3

您应该使用历史记录对象来推送新位置。检查这个问题，How to push to History in React Router v4?。这会有帮助的。