Building Secure Next.js Applications

Security should never be an afterthought. Here's how we build secure Next.js apps at SentralOps.

Key Security Principles

1. Authentication & Authorization

Always use battle-tested auth libraries like NextAuth.js:

import NextAuth from 'next-auth';
import { PrismaAdapter } from '@auth/prisma-adapter';

export const { auth, handlers } = NextAuth({
  adapter: PrismaAdapter(prisma),
  providers: [
    // Your providers
  ],
});

2. Input Validation

Use Zod for runtime type checking:

import { z } from 'zod';

const userSchema = z.object({
  email: z.string().email(),
  name: z.string().min(2),
});

3. Security Headers

Implement comprehensive security headers including CSP, HSTS, and X-Frame-Options.

Conclusion

Security is a journey, not a destination. Keep learning and stay updated!