Adding Google OAuth to your Fine.dev app? Let us review it.
Expert review for Google OAuth integrations built with Fine.dev. We fix Fine.dev-generated Google OAuth code for security, error handling & production readiness. From $19.
Common Fine.dev issues affecting integrations
Spec interpretation may differ significantly from intent
Fine.dev builds exactly what the specification says, not what you meant. Ambiguous specs lead to technically correct implementations that miss the actual product requirement.
Cross-file changes may miss security implications
When Fine.dev generates features spanning multiple files, security-sensitive changes — new endpoints, auth checks, data access patterns — are spread across the PR without a consolidated security review surface.
Generated tests may not cover real-world edge cases
Fine.dev writes tests for the happy path and obvious failure cases from the spec. Edge cases not explicitly mentioned — concurrent requests, null inputs, rate limits — are frequently untested.
Google OAuth issues we find in Fine.dev apps
Missing CSRF state parameter validation
AI-generated OAuth flows don't generate or validate the state parameter, making the callback endpoint vulnerable to CSRF attacks that could link attacker accounts.
Using implicit grant flow instead of authorization code
Generated code uses response_type=token (implicit grant) which exposes tokens in the URL and is deprecated by Google in favor of authorization code with PKCE.
Refresh token not requested or stored securely
AI tools don't include access_type=offline in the authorization URL or store the refresh token securely, causing sessions to expire and requiring re-authentication.
Start with a self-serve audit
Get a professional review of your Google OAuth 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 Fine.dev-built Google OAuth integration?
Yes. We regularly audit Google OAuth integrations in Fine.dev-built apps. We check for proper error handling, security best practices, and production-ready configuration.
What Google OAuth issues does Fine.dev typically create?
Common issues in Fine.dev-generated Google OAuth code include: missing csrf state parameter validation, using implicit grant flow instead of authorization code, refresh token not requested or stored securely. We fix all of these in our code review.
How much does it cost to fix my Google OAuth integration?
Start with our code audit ($19) to get a complete list of Google OAuth issues. Most integration fixes are included in our Fix & Ship plan ($199). For complex integrations, we provide a custom quote after the audit.
What Google OAuth best practices does Fine.dev 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 Google OAuth. Our review checks all of these and provides specific fixes.
Related resources
More Fine.dev Integrations
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