Building a real-time app with MongoDB? Let us review it.
Expert code review for real-time apps built with MongoDB. We fix MongoDB-specific security gaps, optimize performance, and handle deployment. From $19.
Common MongoDB issues we find
Real problems from MongoDB codebases we've reviewed.
NoSQL injection
User input passed directly into MongoDB query operators like $where, $gt, or $regex, allowing attackers to manipulate queries and extract data.
Missing schema validation
No Mongoose schemas or MongoDB JSON Schema validation, allowing inconsistent documents that break application logic.
No database indexes
Collections queried without indexes on frequently filtered or sorted fields, causing full collection scans that degrade as data grows.
Unbounded queries
find() calls without limit or pagination returning entire collections into memory, crashing the server with large datasets.
Real-time App challenges to solve
Key real-time app concerns that AI-generated code often misses.
Connection management and reconnection
WebSocket connections drop constantly — network switches, phone sleep, server deploys. AI tools open a connection but don't handle disconnection, reconnection, or missed messages during downtime. Users see stale data or lose messages without knowing it.
Message ordering and delivery guarantees
Messages must arrive in order and must not be lost. Network issues can deliver messages out of sequence or duplicate them. AI-generated real-time code has no message ordering, no deduplication, and no delivery confirmation — which means lost messages and confused users.
Conflict resolution in collaborative editing
When two users edit the same content simultaneously, whose changes win? AI tools implement 'last write wins,' which silently discards one user's work. Production collaboration needs operational transforms or CRDTs to merge concurrent edits correctly.
Scaling concurrent connections
Each WebSocket connection holds server resources. A single server can handle hundreds of connections, but thousands require load balancing with sticky sessions, a pub/sub layer (like Redis), and horizontal scaling. AI tools don't implement any of this.
What we check
Key areas we review for MongoDB real-time app projects.
Connection lifecycle — reconnection logic, heartbeat, graceful degradation
Message delivery — ordering guarantees, deduplication, acknowledgments
Authentication — WebSocket connections verified, channel-level authorization
Scaling — connection pooling, pub/sub architecture, horizontal scaling readiness
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 MongoDB real-time app 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 real-time app built with MongoDB?
Yes. We regularly audit MongoDB real-time app 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 MongoDB real-time apps?
Common issues include nosql injection and missing schema validation on the MongoDB side, combined with real-time app-specific concerns like connection management and reconnection and message ordering and delivery guarantees. We check for all of these and more.
How do I make my MongoDB real-time app production-ready?
Start with our code audit ($19) to get a prioritized list of issues. For MongoDB real-time app projects, the typical path is: fix security gaps, address real-time app-specific requirements, optimize MongoDB performance, then configure deployment. We provide a fixed quote after the audit.
How long does it take to audit a MongoDB real-time app?
Our code audit delivers a full report within 24 hours. For MongoDB real-time app projects, we check security, architecture, performance, and deployment readiness across all MongoDB-specific patterns. Fixes are scoped separately with a fixed quote.
Related resources
MongoDB by Use Case
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