How to Fix Go cgo Compilation Error: C Compiler Not Found in PATH on Windows/macOS
Building a Go project that uses cgo (directly, or indirectly through a dependency that wraps a C library) fails because Go can't find a C compiler on your...
Category
Go / Gin
Debugging Go services and the Gin web framework.
How to Fix Gin Server Graceful Shutdown Timing Out on Kubernetes Pod Termination
When Kubernetes terminates a pod running your Gin service, requests get abruptly cut off instead of finishing cleanly, and you may see connection reset errors...
Go AWS Lambda Function Cold Start Latency: How to Optimize Package Size
Your Go Lambda function responds quickly once warm, but the first invocation after a period of inactivity is noticeably slower. Cold starts are an inherent...
How to Fix Go net/http Client Leaking File Descriptors Under Heavy Load
Your Go service makes a lot of outbound HTTP requests, and under sustained load, it starts hitting file descriptor limits or degraded performance over time....
How to Fix Gin CORS Preflight Failing With Custom Authorization Header
Your frontend sends requests with an Authorization header (a bearer token, an API key) to your Gin API, and the browser blocks it with a CORS error during the...
How to Fix "panic: runtime error: invalid memory address or nil pointer dereference" in Go
Your Go program crashes at runtime with a panic pointing at memory address 0x0 instead of running normally. This means somewhere in your code, you're calling a...
How to Fix "Gin Error: c.JSON() Not Sending Response Headers"
You call c.JSON() in a Gin handler expecting custom headers (CORS, cache-control, auth tokens) to reach the client, but they're missing from the actual HTTP...
How to Resolve "Cannot Find Package" Error in Go Modules
Your Go build fails because the compiler can't locate a package you're importing, even though you're fairly sure it exists. In modern Go this almost always...
How to Fix "Goroutine Leak Detected" in Long-Running Go Services
Your Go service's memory and goroutine count climb steadily over time instead of staying stable, and profiling confirms goroutines are piling up without ever...