Add Authentication to Next.js With One Line of Code

📰 Dev.to · MonoCloud Admin

Add authentication to Next.js with a single line of code using a middleware function

intermediate Published 17 Mar 2026
Action Steps
  1. Create a new middleware file in your Next.js project
  2. Define the authMiddleware function to handle authentication logic
  3. Export the authMiddleware function as the default export
  4. Test the authentication flow by making requests to protected routes
Who Needs to Know This

Developers building Next.js applications can benefit from this simple authentication solution, and DevOps teams can ensure secure authentication mechanisms are in place

Key Insight

💡 Using a middleware function can simplify authentication in Next.js applications

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💡 Add auth to Next.js in 1 line of code!

Key Takeaways

Add authentication to Next.js with a single line of code using a middleware function

Full Article

export default authMiddleware() That’s it. One line in your middleware file and your Next.js app has...
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