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Goroutines don’t panic if channel they write to is gone

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Couple of months ago I wrote an article about error handling in concurrent Go programs. One concern I had about it was if other goroutines would panic if some goroutine produces an error value which causes return from function when the channel is iterated with range construct. So I made another program that mimics scenario. It spawns couple of goroutines, each taking a second more to complete...

One-liner for serving static files in Go explained

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Whenever I want to set up a server for serving static files in Go, which is not often, I always have to spend some time to figure out the following one-liner. http.Handle("/images/", http.StripPrefix("/images/", http.FileServer(http.Dir("./images")))) What confuses me probably the most here is all three strings being practically the same. So in this post I will explain what this does for my...

Libraries over frameworks

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Lately (in term of years) I noticed I prefer using libraries over frameworks. Or in other words I like to use packages that each do their one thing well rather than one package with all batteries included. I recognize both libraries and frameworks have their pros and cons. You can see my preference for libraries if you are reading my blog where I write a lot about web development, specifically...

Context package in Golang

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Go has a package named context in its standard library. It’s responsibilities are cancelations and carrying request-scoped data (but that doesn’t mean it’s only used in HTTP handlers). I’ve learned it in two parts. For a long time I used it only for storing request-scoped data in HTTP middlewares, but recently I’ve learned the rest of it – (1) how to set up...

A Movie Downloader (a weekend project in Go)

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Last weekend’s project I made was a CLI downloader, named A Movie Downloader (movie-dl), that searches for a movie and downloads both magnet link and a matching English subtitles. A magnet is then opened with Transmission that handles its download. Subtitles are placed in a folder where a movie will be downloaded. That meant that somehow I needed to figure it out where and how this folder...

JS Blog Software development, entertainment, lifestyle.

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Hi, I'm Jernej, a software engineer from Slovenia. Welcome to my personal blog. For more about me, my work and hobbies, please visit my profile page.

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