Adding Google OAuth to your GPT Engineer app? Let us review it.
Expert review for Google OAuth integrations built with GPT Engineer. We fix GPT Engineer-generated Google OAuth code for security, error handling & production readiness. From $19.
Common GPT Engineer issues affecting integrations
No authentication system
GPT Engineer generates functional UIs but typically skips authentication entirely. All routes and data are publicly accessible.
Direct database access from client
Some generated apps query databases directly from the frontend without an API layer, exposing database credentials and structure.
Incomplete feature implementations
Features that look complete in the UI but don't actually work end-to-end. Buttons that don't submit, forms that don't save, and links that go nowhere.
Google OAuth issues we find in GPT Engineer 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 GPT Engineer-built Google OAuth integration?
Yes. We regularly audit Google OAuth integrations in GPT Engineer-built apps. We check for proper error handling, security best practices, and production-ready configuration.
What Google OAuth issues does GPT Engineer typically create?
Common issues in GPT Engineer-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 GPT Engineer 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 GPT Engineer Integrations
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