Middleware now supports Node.js

Middleware support for the Node.js runtime is now available, providing full Node.js support for authentication, personalization, and more—using familiar APIs.

Middleware continues to be deployed globally on Vercel, regardless of the runtime used. We are first releasing support for Node.js Middleware in Next.js 15.2.

This experimental feature requires the Next.js canary channel. Upgrade to next@canary and enable the nodejs experimental flag in your config to use it:

import type { NextConfig } from "next";

const nextConfig: NextConfig = {
  experimental: {
    nodeMiddleware: true, // Enable Node.js middleware
  },
};

export default nextConfig;

You must also specify the Node.js runtime in your middleware file:

import type { NextRequest } from "next/server";

export function middleware(request: NextRequest) {
  // Your middleware logic here
}

export const config = {
  runtime: "nodejs", // Specify the runtime environment as Node.js
};

Deploy now with Next.js 15.2.