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next-auth
Advanced tools
NextAuth.js is a complete open-source authentication solution for Next.js applications. It provides a simple and secure way to add authentication to your Next.js app, supporting various authentication providers, including OAuth, email/password, and custom credentials.
OAuth Authentication
NextAuth.js supports OAuth authentication with various providers like Google, Facebook, GitHub, etc. The code sample demonstrates how to configure Google and Facebook OAuth providers.
```javascript
import NextAuth from 'next-auth';
import Providers from 'next-auth/providers';
export default NextAuth({
providers: [
Providers.Google({
clientId: process.env.GOOGLE_CLIENT_ID,
clientSecret: process.env.GOOGLE_CLIENT_SECRET
}),
Providers.Facebook({
clientId: process.env.FACEBOOK_CLIENT_ID,
clientSecret: process.env.FACEBOOK_CLIENT_SECRET
})
]
});
```
Email/Password Authentication
NextAuth.js allows email/password authentication by sending magic links to users' email addresses. The code sample shows how to configure the email provider.
```javascript
import NextAuth from 'next-auth';
import Providers from 'next-auth/providers';
export default NextAuth({
providers: [
Providers.Email({
server: process.env.EMAIL_SERVER,
from: process.env.EMAIL_FROM
})
]
});
```
Custom Credentials Authentication
NextAuth.js supports custom credentials authentication, allowing you to define your own logic for authenticating users. The code sample demonstrates a simple username/password authentication.
```javascript
import NextAuth from 'next-auth';
import Providers from 'next-auth/providers';
export default NextAuth({
providers: [
Providers.Credentials({
name: 'Credentials',
credentials: {
username: { label: 'Username', type: 'text' },
password: { label: 'Password', type: 'password' }
},
authorize: async (credentials) => {
const user = { id: 1, name: 'User' };
if (credentials.username === 'user' && credentials.password === 'password') {
return Promise.resolve(user);
} else {
return Promise.resolve(null);
}
}
})
]
});
```
Session Management
NextAuth.js provides session management, allowing you to access the user's session data on both the client and server sides. The code sample shows how to retrieve the session in a Next.js page using getServerSideProps.
```javascript
import { getSession } from 'next-auth/client';
export async function getServerSideProps(context) {
const session = await getSession(context);
return {
props: { session }
};
}
```
Passport is a popular authentication middleware for Node.js. It is highly flexible and supports a wide range of authentication strategies. Compared to NextAuth.js, Passport requires more manual setup and configuration, but it offers greater flexibility and can be used with any Node.js framework.
Auth0 is a cloud-based authentication service that provides a comprehensive solution for authentication and authorization. It supports various authentication methods and integrates well with many platforms. Compared to NextAuth.js, Auth0 is a third-party service that requires a subscription for advanced features, but it offers a more extensive set of features and easier integration with multiple platforms.
Firebase Authentication is a part of Google's Firebase platform, providing backend services to authenticate users in your app. It supports email/password, phone number, and various social providers. Compared to NextAuth.js, Firebase Authentication is a managed service that integrates seamlessly with other Firebase services, but it may not offer the same level of customization as NextAuth.js.
This is work in progress of version 2.0 of NextAuth, an authentication library for Next.js.
Version 2.0 is a complete re-write, designed from the ground up for serverless.
NextAuth is a complete self-hosted application solution for Next.js applications.
It allows you to easily add sign in support to an application, without any third party service dependancies.
You provide database connnection details (MySQL, Postgres, MongoDB, etc) and NextAuth does the rest!
useSession()
hook and isomorphic session()
methodNote: NextAuth is not associated with Next.js or Vercel.
NextAuth supports both SQL and Document databases out of the box.
There are predefined models for Users and Sessions, which you can use (or extend or replace with your own models/schemas).
To add next-auth
to a project, create a file to handle authentication requests at pages/api/auth/[...slug.js]
:
import NextAuth from 'next-auth'
import Providers from 'next-auth/providers'
import Adapters from 'next-auth/adapters'
// Database options - the default adapter is TypeORM
// See https://github.com/typeorm/typeorm/blob/master/docs/using-ormconfig.md
const database = {
type: 'sqlite',
database: ':memory:',
}
// NextAuth Options
const options = {
site: process.env.SITE || 'http://localhost:3000',
providers: [
Providers.Twitter({
clientId: process.env.TWITTER_ID,
clientSecret: process.env.TWITTER_SECRET,
}),
Providers.Google({
clientId: process.env.GOOGLE_ID,
clientSecret: process.env.GOOGLE_SECRET
}),
Providers.GitHub({
clientId: process.env.GITHUB_ID,
clientSecret: process.env.GITHUB_SECRET
}),
],
adapter: Adapters.Default(database)
}
export default (req, res) => NextAuth(req, res, options)
All requests to pages/api/auth/*
(signin, callback, signout, etc) will now be automatically handed by NextAuth.
Note: Your project will need an NPM module suitable for your database installed (e.g. npm i sqlite3
).
You can now use the useSession()
hook to see if a user is signed in!
import NextAuth from 'next-auth'
export default () => {
const [session, loading] = NextAuth.useSession()
return <>
{loading && <p>Checking session…</p>}
{!loading && session && <p>Signed in as {session.user.name || session.user.email}.</p>}
{!loading && !session && <p><a href="/api/auth/signin">Sign in here</p>}
</>
}
This is all the code you need to add support for signing in to a project!
While calling useSession()
like this will work perfectly well, it will do network request to get the session in each component you use it in. To reduce network load and improve performance, you can wrap your component tree in our Provider
, which will make useSession()
use React Context instead.
You can use this Provider
on specific pages or add it to all by adding to your pages/_app.js
(Next.js docs for _app.js):
import NextAuth from 'next-auth'
export default ({ Component, pageProps }) => {
return (
<NextAuth.Provider>
<Component {...pageProps} />
</NextAuth.Provider>
)
}
FAQs
Authentication for Next.js
The npm package next-auth receives a total of 960,471 weekly downloads. As such, next-auth popularity was classified as popular.
We found that next-auth demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 3 open source maintainers collaborating on the project.
Did you know?
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