#go

Articles tagged with #go

Preventing goroutine leaks
The done Channel Pattern func doWork(done <-chan interface{}) <-chan interface{} { terminated := make(chan interface{}) go func() { defer close(terminated) for { select { case s := <-strings: ...
Jul 2, 20251 min read35
Golang - Chi - Cheatsheet
Installation go get github.com/go-chi/chi/v5 Basic Setup package main import ( "net/http" "github.com/go-chi/chi/v5" "github.com/go-chi/chi/v5/middleware" ) func main() { r := chi.NewRouter() r.Use(middleware.Logger) r.Use(...
Jul 1, 20253 min read366
Golang Concurrency #9 - Context and Cancellations
Introduction Context solves the problem: "How do I gracefully stop operations or set timeouts across multiple goroutines?" Key Insight Context provides cooperative cancellation -> you control when and how to check for cancellation, not abrupt force-k...
Jun 29, 20253 min read46
Golang Concurrency #8 - Mutexes
Introduction Mutexes solve the problem: "What happens when multiple goroutines access the same variable?" The Problem: Race Condition var counter int func main() { for i := 0; i < 1000; i++ { go func() { counter++ // Multipl...
Jun 29, 20252 min read40
Golang Concurrency #7 - WaitGroup
Introduction WaitGroups solve the problem: "How do I wait for multiple goroutines to finish?" The Problem func main() { go doWork("Job 1") go doWork("Job 2") go doWork("Job 3") fmt.Println("All done!") // Prints immediately, jobs st...
Jun 29, 20252 min read21
Golang Concurrency #6 - Worker Pool Pattern
The Problem You have many tasks (jobs) and want multiple workers processing them simultaneously instead of one-by-one. The Solution One shared job queue (channel) Multiple workers (goroutines) all grabbing jobs from the same queue Whoever is free ...
Jun 29, 20253 min read27