Building a mvp / prototype with NestJS? Let us review it.
Expert code review for mvp / prototype apps built with NestJS. We fix NestJS-specific security gaps, optimize performance, and handle deployment. From $19.
Common NestJS issues we find
Real problems from NestJS codebases we've reviewed.
Missing authentication guards
Controllers and routes without @UseGuards decorators, leaving endpoints publicly accessible without any auth checks.
Incorrect dependency injection scope
Services registered with wrong scope (default singleton vs request-scoped) causing shared state between requests and data leakage between users.
Unvalidated DTOs
Data Transfer Objects without class-validator decorators or missing the global ValidationPipe, accepting any shape of input data.
Circular dependency issues
Modules importing each other in cycles, causing runtime errors or undefined injections that only surface in production.
MVP / Prototype challenges to solve
Key mvp / prototype concerns that AI-generated code often misses.
Identifying what actually needs fixing
Not everything needs to be production-grade for an MVP. The challenge is knowing which shortcuts are acceptable (visual polish, advanced features) and which aren't (security, data loss, broken core flows). Our audit prioritizes fixes by impact.
Security minimum
Even an MVP handles user data. You need authentication that works, data isolated per user, no exposed secrets, and HTTPS. You don't need enterprise-grade security, but you need the basics done right.
Deployment
Your app runs locally but deploying it involves environment variables, domain configuration, SSL, and build optimization. First-time deployment is where most AI prototypes hit unexpected issues.
Error handling
When something goes wrong (and it will), your users should see a helpful message — not a white screen or a raw error. Basic error handling is the difference between 'this app is buggy' and 'something went wrong, please try again.'
What we check
Key areas we review for NestJS mvp / prototype projects.
Core user flow — does signup to core action work reliably?
Authentication — secure login, session handling, password reset
Data security — user data isolation, no exposed secrets
Deployment readiness — env vars, build configuration, domain setup
Not sure if your app passes? Our code audit ($19) checks all of these and more.
Start with a self-serve audit
Get a professional review of your NestJS mvp / prototype project 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 a mvp / prototype built with NestJS?
Yes. We regularly audit NestJS mvp / prototype projects and understand the specific patterns and pitfalls of this combination. Our review covers security, performance, and deployment readiness.
What issues do you find in NestJS mvp / prototype apps?
Common issues include missing authentication guards and incorrect dependency injection scope on the NestJS side, combined with mvp / prototype-specific concerns like identifying what actually needs fixing and security minimum. We check for all of these and more.
How do I make my NestJS mvp / prototype production-ready?
Start with our code audit ($19) to get a prioritized list of issues. For NestJS mvp / prototype projects, the typical path is: fix security gaps, address mvp / prototype-specific requirements, optimize NestJS performance, then configure deployment. We provide a fixed quote after the audit.
How long does it take to audit a NestJS mvp / prototype?
Our code audit delivers a full report within 24 hours. For NestJS mvp / prototype projects, we check security, architecture, performance, and deployment readiness across all NestJS-specific patterns. Fixes are scoped separately with a fixed quote.
Related resources
NestJS by Use Case
Need help with your NestJS mvp / prototype?
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