How to create a custom hook for handling session timeouts in Next.js



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Creating a custom hook for handling session timeouts in a Next.js application involves a few steps. Session management can vary depending on your specific requirements and the technology stack you're using for session management (e.g., JWT tokens, cookies, etc.). Below is a generalized example using React hooks to manage session timeouts.

Let's assume you're using cookies to manage sessions:

  1. Create a Custom Hook: First, create a custom hook to handle session timeouts. This hook will manage the session timeout logic.
jsx
// useSessionTimeout.js
import { useEffect, useState } from 'react';

const SESSION_TIMEOUT = 30 * 60 * 1000; // 30 minutes in milliseconds

export default function useSessionTimeout() {
  const [sessionExpired, setSessionExpired] = useState(false);

  useEffect(() => {
    let timer;
    
    const resetTimeout = () => {
      clearTimeout(timer);
      timer = setTimeout(() => setSessionExpired(true), SESSION_TIMEOUT);
    };

    resetTimeout();

    // Listen for user activity to reset the timeout
    const onUserActivity = () => {
      resetTimeout();
      setSessionExpired(false);
    };

    window.addEventListener('mousemove', onUserActivity);
    window.addEventListener('keydown', onUserActivity);

    return () => {
      clearTimeout(timer);
      window.removeEventListener('mousemove', onUserActivity);
      window.removeEventListener('keydown', onUserActivity);
    };
  }, []);

  return { sessionExpired };
}
  1. Use the Custom Hook in Your Components: Now, you can use this custom hook in your components to check if the session has expired.
jsx
// MyComponent.js
import React from 'react';
import useSessionTimeout from './useSessionTimeout';

function MyComponent() {
  const { sessionExpired } = useSessionTimeout();

  if (sessionExpired) {
    // Handle session expiration (e.g., redirect to login page)
    return <p>Your session has expired. Please log in again.</p>;
  }

  return (
    <div>
      {/* Your component content */}
    </div>
  );
}

export default MyComponent;
  1. Handle Session Expiration in Your Application: Depending on your application's requirements, you can redirect the user to the login page or perform any other necessary actions when the session expires.

Remember to adjust the SESSION_TIMEOUT constant according to your session expiration policy.

Additionally, ensure that your Next.js application is properly configured for session management, whether it's using cookies, JWT tokens, or any other method. You may need to integrate this custom hook with your chosen session management solution.

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