Next.js

Authentication for Next.js, done right

Add login, sessions, and route protection to your App Router app in minutes. Authdog handles the cookies, token refresh, and edge checks so you can focus on your product — not your auth plumbing.

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Drop-in middleware

middleware.ts

// middleware.ts
import { withAuth } from "@authdog/nextjs"
 
export default withAuth({
  publicRoutes: ["/", "/pricing"],
  loginPage: "/login",
})

Built for the App Router

Everything Next.js apps need

From middleware to Server Components, Authdog fits the Next.js model instead of fighting it.

App Router & RSC

First-class support for Next.js 14+ App Router. Read the session in Server Components, Client Components, and Server Actions with a single API.

Middleware route protection

Guard whole route trees from the edge. Redirect unauthenticated users before a page ever renders — no flash of protected content.

API & Route Handlers

Validate sessions and access tokens inside Route Handlers and API routes so your server endpoints stay protected end to end.

Typed SDK

A fully typed SDK with autocomplete for sessions, claims, and roles. Catch auth mistakes at build time, not in production.

Automatic token refresh

Sessions are refreshed silently using secure, HTTP-only cookies. No token plumbing, no expiry edge cases to handle yourself.

Edge-ready

Runs on the Edge and Node.js runtimes alike. Verify identity close to the user with sub-millisecond session checks.

Server Components, natively

Read the session on the server

Call getSession() anywhere on the server — Server Components, Server Actions, or Route Handlers — and get a typed, verified session. No providers to thread through your tree, no client-side token juggling, no hydration mismatches.

app/dashboard/page.tsx

// app/dashboard/page.tsx
import { getSession } from "@authdog/nextjs/server"
 
export default async function Page() {
  const session = await getSession()
 
  return <h1>Welcome, {session.user.name}</h1>
}

Ship auth, not boilerplate

Authdog's Next.js integration is designed to disappear into your app — secure defaults, server-first sessions, and edge-speed checks out of the box.

5 min

From npm install to a protected route

Drop in the middleware, wrap your app, and your routes are guarded — most teams ship login the same afternoon.

Client-side token handling required

Sessions live in secure HTTP-only cookies and are read on the server. There's no token for client JavaScript to leak.

<1ms

Session check at the edge

Middleware verifies the session before the page renders, so protected content never flashes and unauthorized users never see it.

Add auth to your Next.js app.

Install the SDK, wrap your app, and protect your routes today. Free to start, with secure defaults built in.

Start Building