Development · Dec 15, 2024 · 6 min read

Secure by Design: Authentication with NextAuth.js

Implementing passwordless login, OAuth providers, and role-based access control (RBAC) in a Next.js application.

Secure by Design: Authentication with NextAuth.js cover image

Authentication used to be hard. With Auth.js (NextAuth), it becomes configuration. But security is still your responsibility.

The Password Problem

Storing passwords is a liability. We encourage Passwordless auth (Magic Links) or OAuth (Google/GitHub/Microsoft). It reduces friction for users and risk for you.

Middleware Protection

Next.js Middleware allows us to protect routes at the edge. Before the request even hits your database, we can verify the JWT token. This provides immense security and performance benefits.

RBAC Implementation

Authentication is "who you are". Authorization is "what you can do". We usually embed the Role in the session token, so the UI can conditionally hide admin features without making an API call.

#Security#NextJS#Auth#OAuth

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