Authentication Providers

NextAuth.js is designed to work with any OAuth service, it supports OAuth 1.0, 1.0A and 2.0 and has built-in support for many popular OAuth sign-in services. It also supports email / passwordless authentication.

Sign in with OAuth

Built-in providers

Using a built-in provider

  1. Register your application at the developer portal of your provider. There are links above to the developer docs for most supported providers with details on how to register your application.

  2. The redirect URI should follow this format:

    [origin]/api/auth/callback/[provider]

    For example, Twitter on localhost this would be:

    http://localhost:3000/api/auth/callback/twitter

  3. Create a .env file at the root of your project and add the client ID and client secret. For Twitter this would be:

    TWITTER_ID=YOUR_TWITTER_CLIENT_ID
    TWITTER_SECRET=YOUR_TWITTER_CLIENT_SECRET

  4. Now you can add the provider settings to the NextAuth options object. You can add as many OAuth providers as you like, as you can see providers is an array.

    /pages/api/auth/[...nextauth].js
    ...
    providers: [
    Providers.Twitter({
    clientId: process.env.TWITTER_ID,
    clientSecret: process.env.TWITTER_SECRET
    })
    ],
    ...

  5. Once a provider has been setup, you can sign in at the following URL: [origin]/api/auth/signin. This is an unbranded auto-generated page with all the configured providers.

Signin Screenshot
tip

If you want to create a custom sign in link you can link to /api/auth/signin/[provider] which will sign in the user in directly with that provider.

Using a custom provider

You can use an OAuth provider that isn't built-in by using a custom object.

As an example of what this looks like, this is the the provider object returned for the Google provider:

{
id: 'google',
name: 'Google',
type: 'oauth',
version: '2.0',
scope: 'https://www.googleapis.com/auth/userinfo.profile https://www.googleapis.com/auth/userinfo.email',
params: { grant_type: 'authorization_code' },
accessTokenUrl: 'https://accounts.google.com/o/oauth2/token',
requestTokenUrl: 'https://accounts.google.com/o/oauth2/auth',
authorizationUrl: 'https://accounts.google.com/o/oauth2/auth?response_type=code',
profileUrl: 'https://www.googleapis.com/oauth2/v1/userinfo?alt=json',
profile: (profile) => {
return {
id: profile.id,
name: profile.name,
email: profile.email,
image: profile.picture
}
},
clientId: '',
clientSecret: ''
}

You can replace all the options in this JSON object with the ones from your custom provider – be sure to give it a unique ID and specify the correct OAuth version - and add it to the providers option:

/pages/api/auth/[...nextauth].js
...
providers: [
Providers.Twitter({
clientId: process.env.TWITTER_ID,
clientSecret: process.env.TWITTER_SECRET,
}),
{
id: 'customProvider',
name: 'CustomProvider',
type: 'oauth',
version: '2.0',
scope: '' // Make sure to request the users email address
...
}
]
...

Options

NameDescriptionRequired
idAn unique ID for your custom providerYes
nameAn unique name for your custom providerYes
typeType of provider, in this case it should be oauthYes
versionOAuth version.Yes
scopeOAuth access scopesNo
paramsAdditional authorization URL parametersNo
accessTokenUrlEndpoint to retrieve an access tokenYes
requestTokenUrlEndpoint to retrieve a request tokenNo
authorizationUrlEndpoint to request authorization from the userYes
profileUrlEndpoint to retrieve the user's profileNo
profileAn object with the user's infoNo
clientIdClient ID of the OAuth providerYes
clientSecretClient Secret of the OAuth providerNo
idTokenSet to true for services that use ID Tokens (e.g. OpenID)No
note

Feel free to open a PR for your custom configuration if you've created one for a provider that others may be interested in so we can add it to the list of built-in OAuth providers!

Sign in with Email

The Email provider uses email to send "magic links" that can be used sign in, you will likely have seen them before if you have used software like Slack.

Adding support for signing in via email in addition to one or more OAuth services provides a way for users to sign in if they lose access to their OAuth account (e.g. if it is locked or deleted).

Configuration is similar to other providers, but the options are different:

/pages/api/auth/[...nextauth].js
providers: [
Providers.Email({
server: process.env.EMAIL_SERVER,
from: process.env.EMAIL_FROM,
// maxAge: 24 * 60 * 60, // How long email links are valid for (default 24h)
}),
],

See the Email provider documentation for more information on how to configure email sign in.

note

The email provider requires a database, it cannot be used without one.

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