Minimalist Authentication module for Nuxt exposing Vue composables and server utils.
- Secured & sealed cookies sessions
- OAuth Providers
This module only works with SSR (server-side rendering) enabled as it uses server API routes. You cannot use this module with nuxt generate.
- Add
nuxt-auth-utilsin your Nuxt project
npx nuxi@latest module add auth-utils- Add a
NUXT_SESSION_PASSWORDenv variable with at least 32 characters in the.env.
# .env
NUXT_SESSION_PASSWORD=password-with-at-least-32-charactersNuxt Auth Utils generates one for you when running Nuxt in development the first time if no NUXT_SESSION_PASSWORD is set.
- That's it! You can now add authentication to your Nuxt app ✨
Nuxt Auth Utils automatically adds some plugins to fetch the current user session to let you access it from your Vue components.
<script setup>
const { loggedIn, user, session, clear } = useUserSession()
</script>
<template>
<div v-if="loggedIn">
<h1>Welcome {{ user.login }}!</h1>
<p>Logged in since {{ session.loggedInAt }}</p>
<button @click="clear">Logout</button>
</div>
<div v-else>
<h1>Not logged in</h1>
<a href="/auth/github">Login with GitHub</a>
</div>
</template>The following helpers are auto-imported in your server/ directory.
// Set a user session, note that this data is encrypted in the cookie but can be decrypted with an API call
// Only store the data that allow you to recognize a user, but do not store sensitive data
// Merges new data with existing data using defu()
await setUserSession(event, {
user: {
// ... user data
},
loggedInAt: new Date()
// Any extra fields
})
// Replace a user session. Same behaviour as setUserSession, except it does not merge data with existing data
await replaceUserSession(event, data)
// Get the current user session
const session = await getUserSession(event)
// Clear the current user session
await clearUserSession(event)
// Require a user session (send back 401 if no `user` key in session)
const session = await requireUserSession(event)You can define the type for your user session by creating a type declaration file (for example, auth.d.ts) in your project to augment the UserSession type:
// auth.d.ts
declare module '#auth-utils' {
interface User {
// Add your own fields
}
interface UserSession {
// Add your own fields
}
}
export {}All helpers are exposed from the oauth global variable and can be used in your server routes or API routes.
The pattern is oauth.<provider>EventHandler({ onSuccess, config?, onError? }), example: oauth.githubEventHandler.
The helper returns an event handler that automatically redirects to the provider authorization page and then calls onSuccess or onError depending on the result.
The config can be defined directly from the runtimeConfig in your nuxt.config.ts:
export default defineNuxtConfig({
runtimeConfig: {
oauth: {
<provider>: {
clientId: '...',
clientSecret: '...'
}
}
}
})It can also be set using environment variables:
NUXT_OAUTH_<PROVIDER>_CLIENT_IDNUXT_OAUTH_<PROVIDER>_CLIENT_SECRET
- Auth0
- AWS Cognito
- Battle.net
- Discord
- GitHub
- Keycloak
- Microsoft
- Spotify
- Twitch
You can add your favorite provider by creating a new file in src/runtime/server/lib/oauth/.
Example: ~/server/routes/auth/github.get.ts
export default oauth.githubEventHandler({
config: {
emailRequired: true
},
async onSuccess(event, { user, tokens }) {
await setUserSession(event, {
user: {
githubId: user.id
}
})
return sendRedirect(event, '/')
},
// Optional, will return a json error and 401 status code by default
onError(event, error) {
console.error('GitHub OAuth error:', error)
return sendRedirect(event, '/')
},
})Make sure to set the callback URL in your OAuth app settings as <your-domain>/auth/github.
We leverage hooks to let you extend the session data with your own data or log when the user clears the session.
// server/plugins/session.ts
export default defineNitroPlugin(() => {
// Called when the session is fetched during SSR for the Vue composable (/api/_auth/session)
// Or when we call useUserSession().fetch()
sessionHooks.hook('fetch', async (session, event) => {
// extend User Session by calling your database
// or
// throw createError({ ... }) if session is invalid for example
})
// Called when we call useServerSession().clear() or clearUserSession(event)
sessionHooks.hook('clear', async (session, event) => {
// Log that user logged out
})
})We leverage runtimeConfig.session to give the defaults option to h3 useSession.
You can overwrite the options in your nuxt.config.ts:
export default defineNuxtConfig({
modules: ['nuxt-auth-utils'],
runtimeConfig: {
session: {
maxAge: 60 * 60 * 24 * 7 // 1 week
}
}
})Our defaults are:
{
name: 'nuxt-session',
password: process.env.NUXT_SESSION_PASSWORD || '',
cookie: {
sameSite: 'lax'
}
}Checkout the SessionConfig for all options.
# Install dependencies
npm install
# Generate type stubs
npm run dev:prepare
# Develop with the playground
npm run dev
# Build the playground
npm run dev:build
# Run ESLint
npm run lint
# Run Vitest
npm run test
npm run test:watch
# Release new version
npm run release
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