Go code review, security audit, and performance optimization
Go is increasingly popular for backend APIs, microservices, and infrastructure tools. AI tools like Cursor, Claude Code, and GitHub Copilot generate Go code — but vibe coded Go services frequently have goroutine leaks, missing error handling (the blank identifier problem), and insecure HTTP server configurations.
Common Go issues we find
Real problems from Go codebases we've reviewed.
Ignored error returns
The most common AI-generated Go anti-pattern: using _ to discard error returns from functions. Errors are silently ignored, and the code continues with zero or nil values, causing subtle data corruption.
Goroutine leaks
Goroutines spawned without context cancellation or timeout. They accumulate over time, consuming memory and causing the application to slow down and eventually crash.
Insecure default HTTP server
Using http.ListenAndServe with no timeouts configured. The default Go HTTP server has no read, write, or idle timeouts — making it vulnerable to slowloris and resource exhaustion attacks.
SQL injection via string formatting
Building SQL queries with fmt.Sprintf instead of using parameterized queries with database/sql placeholders, enabling injection attacks.
Race conditions in shared state
Multiple goroutines accessing shared maps, slices, or variables without mutexes or channels, causing intermittent crashes and data corruption that are hard to reproduce.
Missing graceful shutdown
Server process exits immediately on SIGTERM without draining in-flight requests or closing database connections, causing errors for active users during deployments.
No structured logging
Using fmt.Println or log.Println for logging, making it impossible to parse, filter, or alert on logs in production monitoring systems.
Hardcoded configuration values
Database URLs, API keys, and feature flags hardcoded in Go source files instead of loaded from environment variables or a configuration management system.
Go production checklist
Key checks before deploying your Go app.
All error returns handled (no blank identifier for errors)
Goroutines use context for cancellation and timeouts
HTTP server has read, write, and idle timeouts configured
Parameterized SQL queries (no fmt.Sprintf for SQL)
Shared state protected with sync.Mutex or channels
Graceful shutdown handling for SIGTERM/SIGINT
Structured logging with slog, zap, or zerolog
Configuration loaded from environment variables
Race condition testing with go test -race
Health check and readiness endpoints for orchestrators
Not sure if your app passes? Our code audit ($19) checks all of these and more.
Our Go services
Security Review
Deep security analysis of your application — from API endpoints to database access.
Deploy & Ship
From local development to production deployment.
Performance
Identify and fix performance bottlenecks — slow page loads, laggy interactions, and expensive operations.
Infrastructure
Databases, APIs, auth systems, email, file storage — the backend services that power your application.
AI tools that generate Go code
Start with a self-serve audit
Get a professional review of your Go project at a fixed price.
Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 checks
- SSL/TLS analysis
- Security headers
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerabilities
- Code quality review
- Dependency audit
- AI pattern 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.
Get a clear plan
We respond in 24 hours with scope, timeline, and cost.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Is my AI-generated Go code production-ready?
Likely not. The biggest issue is ignored error returns — AI tools use the blank identifier (_) to make code compile, hiding real problems. We review error handling, goroutine management, and server configuration to make your Go code reliable.
How do I find goroutine leaks?
We use Go's built-in pprof profiling, runtime metrics, and code analysis to identify goroutines that never exit. Then we add proper context cancellation and timeouts to fix them.
Can you deploy my Go service?
Yes. Go compiles to a single binary, making deployment straightforward. We set up Docker containers, health checks, graceful shutdown, structured logging, and monitoring — deploying to AWS, GCP, or any container platform.
Related resources
Need help with your Go project?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.