#Middleware authentication

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subtle moatBOT
#

Hi @umbral torrent. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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In Next.js, you can use middleware to handle authentication. Middleware functions are executed before the page is loaded, allowing you to perform server-side operations like checking if a user is authenticated.

Here's an example of how you can use middleware to authenticate a user:

export function middleware(request: NextRequest) {
  const isNextFile = request.nextUrl.pathname.startsWith('_next');
  if (isNextFile) return NextResponse.next()

  const isPublic = request.nextUrl.pathname.startsWith('/sign-in');
  const isAuthorized = request.cookies.get('auth');

  if (isPublic && isAuthorized) {
    return NextResponse.redirect(new URL('/my-profile', request.url));
  }

  if (!isPublic && !isAuthorized) {
    return NextResponse.redirect(new URL('/sign-in', request.url));
  }

  return NextResponse.next()
}

In this example, the middleware checks if the user is trying to access a public page (/sign-in) and if they are authorized (have an auth cookie). If they are trying to access a public page and are authorized, they are redirected to their profile page. If they are trying to access a non-public page and are not authorized, they are redirected to the sign-in page.

For server-rendered pages, you can use the getServerSideProps function to fetch user data server-side and prevent a flash of unauthenticated content. Here's an example:

export const getServerSideProps = withSession(async function ({ req, res }) {
 const { user } = req.session
 
 if (!user) {
 return {
 redirect: {
 destination: '/login',
 permanent: false,
 },
 }
 }
 
 return {
 props: { user },
 }
})

In this example, if there's no user session, the user is redirected to the login page. If there is a user session, the user data is passed as a prop to the page component.

#

@umbral torrent kapa.ai is still learning and improving, please let us know how it did by reacting below

umbral torrent
#

@subtle moat import { PrismaAdapter } from '@auth/prisma-adapter';
import type { NextAuthOptions } from 'next-auth';
import EmailProvider from 'next-auth/providers/email';
import FacebookProvider from 'next-auth/providers/facebook';
import GoogleProvider from 'next-auth/providers/google';
import prisma from '../lib/prisma';

export const authOptions = {
adapter: PrismaAdapter(prisma),
callbacks: {

},
providers: [
GoogleProvider({
clientId: process.env.GOOGLE_CLIENT_ID as string,
clientSecret: process.env.GOOGLE_CLIENT_SECRET as string,
}),
FacebookProvider({
clientId: process.env.FACEBOOK_CLIENT_ID as string,
clientSecret: process.env.FACEBOOK_CLIENT_SECRET as string,
}),
EmailProvider({
server: {
host: process.env.EMAIL_SERVER_HOST,
port: process.env.EMAIL_SERVER_PORT,
auth: {
user: process.env.EMAIL_SERVER_USER,
pass: process.env.EMAIL_SERVER_PASSWORD,
},
},
from: process.env.EMAIL_FROM,
}),
],
pages: {
signIn: '/signin',
},
} satisfies NextAuthOptions;

Middleware:
export { default } from 'next-auth/middleware';

export const config = { matcher: ['/profile'] };

subtle moatBOT
#

Let me check the knowledge base for you. One moment! :books:

#

From the code you've provided, it seems like you're setting up NextAuth with multiple providers (Google, Facebook, and Email) and using Prisma as your adapter. You're also defining a custom sign-in page.

For the middleware, you're exporting the default middleware from next-auth/middleware and specifying a matcher for the /profile route.

Here's a brief explanation of the code:

import { PrismaAdapter } from '@auth/prisma-adapter';
import type { NextAuthOptions } from 'next-auth';
import EmailProvider from 'next-auth/providers/email';
import FacebookProvider from 'next-auth/providers/facebook';
import GoogleProvider from 'next-auth/providers/google';
import prisma from '../lib/prisma';

export const authOptions = {
  adapter: PrismaAdapter(prisma),
  callbacks: {
    
  },
  providers: [
    GoogleProvider({
      clientId: process.env.GOOGLE_CLIENT_ID as string,
      clientSecret: process.env.GOOGLE_CLIENT_SECRET as string,
    }),
    FacebookProvider({
      clientId: process.env.FACEBOOK_CLIENT_ID as string,
      clientSecret: process.env.FACEBOOK_CLIENT_SECRET as string,
    }),
    EmailProvider({
      server: {
        host: process.env.EMAIL_SERVER_HOST,
        port: process.env.EMAIL_SERVER_PORT,
        auth: {
          user: process.env.EMAIL_SERVER_USER,
          pass: process.env.EMAIL_SERVER_PASSWORD,
        },
      },
      from: process.env.EMAIL_FROM,
    }),
  ],
  pages: {
    signIn: '/signin',
  },
} satisfies NextAuthOptions;

This code sets up NextAuth with Google, Facebook, and Email providers. It uses Prisma as the adapter to interact with your database. The pages option is used to specify a custom sign-in page.

export { default } from 'next-auth/middleware';
#

export const config = { matcher: ['/profile'] };

This code exports the default middleware from `next-auth/middleware` and specifies a matcher for the `/profile` route. This means that the middleware will only run for requests to the `/profile` route.

Please note that the `matcher` option in the `config` object is not a standard NextAuth configuration. It might be specific to your application or a library you're using.

For more information on NextAuth, you can refer to the **NextAuth documentation** (<https://next-auth.js.org/>). For more information on Next.js middleware, you can refer to the **Next.js documentation** (<https://nextjs.org/docs/middleware>).
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