Adding NextAuth.js to your Windsurf app? Let us review it.
Expert review for NextAuth.js integrations built with Windsurf. We fix Windsurf-generated NextAuth.js code for security, error handling & production readiness. From $19.
Common Windsurf issues affecting integrations
Incorrect auth middleware logic
Windsurf generates auth checks that look correct but have logical gaps — missing route protections, incorrect token validation, or bypassable middleware.
SQL injection in raw queries
When Windsurf uses raw SQL instead of an ORM, it sometimes concatenates user input directly into queries rather than using parameterized statements.
Silent data corruption
Type mismatches between frontend and backend go unnoticed. Data gets saved with wrong types or missing fields, causing issues that surface much later.
NextAuth.js issues we find in Windsurf apps
Mixing NextAuth v4 and v5 (Auth.js) patterns
AI tools generate a hybrid of v4 [...nextauth].ts and v5 auth.ts configurations that compile but fail at runtime with cryptic errors.
Session callback not including user ID or role
Generated code uses the default session callback which doesn't include the user's database ID or role, making authorization checks impossible.
JWT strategy used without setting NEXTAUTH_SECRET
AI tools configure JWT sessions but don't set the NEXTAUTH_SECRET environment variable, causing tokens to be signed with an insecure default key.
Start with a self-serve audit
Get a professional review of your NextAuth.js integration at a fixed price.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Can you review my Windsurf-built NextAuth.js integration?
Yes. We regularly audit NextAuth.js integrations in Windsurf-built apps. We check for proper error handling, security best practices, and production-ready configuration.
What NextAuth.js issues does Windsurf typically create?
Common issues in Windsurf-generated NextAuth.js code include: mixing nextauth v4 and v5 (auth.js) patterns, session callback not including user id or role, jwt strategy used without setting nextauth_secret. We fix all of these in our code review.
How much does it cost to fix my NextAuth.js integration?
Start with our code audit ($19) to get a complete list of NextAuth.js issues. Most integration fixes are included in our Fix & Ship plan ($199). For complex integrations, we provide a custom quote after the audit.
What NextAuth.js best practices does Windsurf typically miss?
AI tools often skip webhook signature verification, proper error handling for API failures, retry logic with exponential backoff, and secure token storage for NextAuth.js. Our review checks all of these and provides specific fixes.
Related resources
More Windsurf Integrations
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