Building a e-commerce store with Express? Let us review it.
Expert code review for e-commerce stores built with Express. We fix Express-specific security gaps, optimize performance, and handle deployment. From $19.
Common Express issues we find
Real problems from Express codebases we've reviewed.
No helmet middleware for security headers
Express apps without the helmet middleware are missing critical security headers like Content-Security-Policy, X-Content-Type-Options, and HSTS, leaving the app vulnerable to common web attacks.
Missing input validation and sanitization
Request body, query params, and URL params used directly without validation. No express-validator, zod, or joi — enabling injection attacks and unexpected crashes.
Unstructured error handling
No global error-handling middleware. Errors either crash the process, leak stack traces to clients, or get silently swallowed with no logging.
CORS set to allow all origins
The cors() middleware called with no options, defaulting to allowing requests from any website — a security risk for APIs that handle user data.
E-Commerce Store challenges to solve
Key e-commerce store concerns that AI-generated code often misses.
Payment security and PCI compliance
You're handling credit card transactions. While Stripe and similar services handle PCI compliance on their end, your integration must not expose card data, must verify webhook signatures, and must handle failed payments gracefully.
Inventory management
What happens when two customers buy the last item simultaneously? AI tools don't implement inventory locking or race condition prevention. Overselling damages trust and creates costly fulfillment problems.
Order processing pipeline
Orders move through states: pending, confirmed, processing, shipped, delivered. Each transition triggers actions (emails, inventory updates, accounting entries). AI tools build the checkout but not the order lifecycle.
Shipping and tax calculation
Real shipping costs vary by weight, destination, and carrier. Sales tax varies by jurisdiction. These calculations need to be accurate and up-to-date — getting them wrong is either illegal (tax) or margin-killing (shipping).
What we check
Key areas we review for Express e-commerce store projects.
Payment integration — Stripe checkout, webhook verification, refund handling
Inventory management — stock tracking, oversell prevention
Order lifecycle — state machine, status emails, admin management
Security — PCI best practices, data protection, auth on admin routes
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 Express e-commerce store 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 e-commerce store built with Express?
Yes. We regularly audit Express e-commerce store 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 Express e-commerce stores?
Common issues include no helmet middleware for security headers and missing input validation and sanitization on the Express side, combined with e-commerce store-specific concerns like payment security and pci compliance and inventory management. We check for all of these and more.
How do I make my Express e-commerce store production-ready?
Start with our code audit ($19) to get a prioritized list of issues. For Express e-commerce store projects, the typical path is: fix security gaps, address e-commerce store-specific requirements, optimize Express performance, then configure deployment. We provide a fixed quote after the audit.
How long does it take to audit a Express e-commerce store?
Our code audit delivers a full report within 24 hours. For Express e-commerce store projects, we check security, architecture, performance, and deployment readiness across all Express-specific patterns. Fixes are scoped separately with a fixed quote.
Related resources
Express by Use Case
Need help with your Express e-commerce store?
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