nextjs-supabase-auth

Integrate Supabase authentication with Next.js App Router using @supabase/ssr.

Updated Mar 12, 2026

Search Tags:#middleware #supabase #nextjs #session-management #auth #server-components #server-actions

Ready to run

npx skills add https://github.com/arvidfcjarfalla-prog/atlas --skill nextjs-supabase-auth-arvidfcjarfalla-prog

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: nextjs-supabase-auth
Source: https://github.com/arvidfcjarfalla-prog/atlas/tree/main/.claude/skills/nextjs-supabase-auth
Command: npx skills add https://github.com/arvidfcjarfalla-prog/atlas --skill nextjs-supabase-auth-arvidfcjarfalla-prog

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Integrating Supabase authentication into Next.js App Router applications can be challenging due to the server/client boundary, middleware-based protections, and secure session handling. This section outlines how to streamline user login flows and protect routes without exposing sensitive data.

Core Features & Use Cases

Seamless integration of Supabase Auth with Next.js App Router and Middleware for protected routes.
Server-first authentication flows using Server Components, Server Actions, and cookie-based sessions.
Real-world use cases include login, signup, and OAuth callback handling with secure token management.

Quick Start

Configure a Next.js App Router project, initialize Supabase client (using @supabase/ssr for server components), and protect routes with middleware.

Frequently Asked Questions about nextjs-supabase-auth

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I set up Supabase auth in Next.js App Router with middleware?▼

Set up Supabase auth in Next.js App Router by initializing the client with @supabase/ssr and configuring middleware to protect routes. This approach uses cookie-based sessions and server components to handle authentication securely.

How do I handle Supabase authentication tokens securely in Next.js server components?▼

Handle Supabase authentication tokens securely in Next.js server components by using @supabase/ssr with cookie-based sessions. This keeps sensitive credentials on the server side without exposing them to the client.

Can I use server actions for Supabase login and signup flows in Next.js?▼

You can use server actions for Supabase login and signup flows in Next.js. Server actions manage authentication workflows and OAuth callbacks while maintaining secure token handling through cookie-based sessions.

Does @supabase/ssr work with Next.js middleware for protected routes?▼

@supabase/ssr works with Next.js middleware for protected routes. It enables server-first authentication flows by managing cookie-based sessions and validating user access before rendering server components.

Why does my Supabase session break across Next.js server and client components?▼

Supabase sessions break across Next.js server and client components when cookie-based synchronization fails. Using @supabase/ssr ensures secure token handling and consistent session management across the server/client boundary.