Solving the Mysterious Case of React Query with Axios not Redirecting to Login Page on Logout: Unraveling the Enigma

Ah, the thrill of the chase! You’ve been implementing React Query with Axios in your application, and everything seems to be working smoothly… until you hit that dreaded logout button. Instead of being redirected to the login page, your app remains stuck, refusing to budge. You’ve tried everything – from scratching your head to banging it against the wall (not that we recommend the latter) – but nothing seems to work. Don’t worry, dear developer, for we’re about to embark on a journey to uncover the truth behind this baffling issue.

The Setup: React Query with Axios

Before we dive into the meat of the matter, let’s take a step back and examine the setup. You’ve likely got a React application using React Query for data fetching and caching. To make HTTP requests, you’ve opted for Axios, a popular choice among developers. Here’s a high-level overview of your setup:

import { QueryClient, QueryClientProvider } from 'react-query';
import axios from 'axios';

const queryClient = new QueryClient();

function App() {
  return (
    <QueryClientProvider client={queryClient}>
      </* Your application components */>
    </QueryClientProvider>
  );
}

axios.create({
  baseURL: 'https://your-api.com/api',
  headers: {
    'Content-Type': 'application/json',
  },
});

The Issue: Axios Not Redirecting to Login Page on Logout

Now, let’s face the music. When you log out, you expect to be redirected to the login page. Alas, with Axios, this doesn’t happen. The page remains stuck, leaving you scratching your head. You’ve tried debugging, checked the network requests, and even consulted theReact Query documentation, but to no avail.

But Wait, Fetch Works!

A curious observation: when you switch to using the Fetch API instead of Axios, the logout functionality works as expected. You’re redirected to the login page without a hitch. This only adds to the confusion, leaving you wondering what dark magic Axios is conjuring up.

import { QueryClient, QueryClientProvider } from 'react-query';

const queryClient = new QueryClient();

function App() {
  return (
    <QueryClientProvider client={queryClient}>
      </* Your application components */>
    </QueryClientProvider>
  );
}

fetch('https://your-api.com/api/logout', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
})
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error(error));

Unraveling the Enigma: The Axios Configuration

The key to solving this mystery lies in the Axios configuration. By default, Axios does not follow redirects (HTTP 301 or 302 responses). When you log out, your API responds with a redirect to the login page, which Axios silently ignores. This behavior is due to the `maxRedirects` option being set to 0 by default.

To fix this issue, you need to configure Axios to follow redirects. You can do this by increasing the `maxRedirects` value or setting it to ` Infinity` to allow unlimited redirects:

import axios from 'axios';

axios.create({
  baseURL: 'https://your-api.com/api',
  headers: {
    'Content-Type': 'application/json',
  },
  maxRedirects: 5, // or Infinity
});

By setting `maxRedirects` to a non-zero value, Axios will follow redirects, allowing your application to redirect to the login page on logout.

Additional Considerations: Query Client Configuration

In addition to configuring Axios, it’s essential to ensure your React Query client is correctly set up to handle errors and redirects. Make sure to configure the `retry` and `retryOn` options to handle retry logic and error handling:

import { QueryClient, QueryClientProvider } from 'react-query';

const queryClient = new QueryClient({
  defaultOptions: {
    queries: {
      retry: 2,
      retryOn: (error) => !!error.response && error.response.status === 401,
    },
  },
});

function App() {
  return (
    <QueryClientProvider client={queryClient}>
      </* Your application components */>
    </QueryClientProvider>
  );
}

In this example, we’ve configured the Query Client to retry failed queries twice, and only retry on 401 Unauthorized responses.

Conclusion: React Query with Axios, Redirects, and Logout

The mystery has been solved! By configuring Axios to follow redirects and adjusting the React Query client settings, you should now be able to successfully redirect to the login page on logout. Remember to:

• Set `maxRedirects` to a non-zero value (or `Infinity`) in your Axios configuration.
• Configure the React Query client with correct retry logic and error handling.

With these adjustments, your React application should now seamlessly redirect to the login page when logging out, using Axios for HTTP requests. Pat yourself on the back, developer – you’ve earned it!

Setup	Issue	Solution
React Query with Axios	Axios not redirecting to login page on logout	Configure Axios to follow redirects (maxRedirects) and adjust React Query client settings

Bonus: Error Handling and Redirects with React Query

As a bonus, let’s explore how to handle errors and redirects with React Query. By using the `retryOn` option, you can specify a function to determine whether a query should be retried based on the error response. In the case of a 401 Unauthorized response, you can redirect to the login page:

import { useQuery, useQueryClient } from 'react-query';

function useMyQuery() {
  const queryClient = useQueryClient();

  return useQuery(
    'myQuery',
    async () => {
      const response = await axios.get('https://your-api.com/api/data');
      return response.data;
    },
    {
      retry: 2,
      retryOn: (error) => {
        if (error.response && error.response.status === 401) {
          // Redirect to login page
          window.location.href = '/login';
          return false;
        }
        return true;
      },
    }
  );
}

In this example, if the query fails with a 401 Unauthorized response, React Query will not retry the query and will instead redirect to the login page.

Final Thoughts

You’ve made it to the end of this epic journey! By understanding the intricacies of React Query and Axios, you’ve overcome the hurdle of logout redirection. Remember to stay vigilant, and when faced with similar issues, take a step back, examine your setup, and unravel the enigma.

Happy coding, and may the redirect be with you!

Frequently Asked Question

Having trouble with React Query and Axios? Don’t worry, we’ve got you covered! Here are some frequently asked questions to help you navigate the issue of React Query with Axios not redirecting to the login page on logout, which works with Fetch but not Axios.