~golangweekly | Bookmarks (12)

Excelize: Library for Working with Excel Spreadsheets — Read and write XLAM / XLSM / XLSX / XLTM / and XLTX files. A long time library that keeps going from strength to strength. GitHub repo.

The Case of a Leaky Goroutine — After finding “a never-ending goroutine factory” causing problems in an app, Wouter shares his findings so you can avoid a similar fate.

For Loops and More in Go — for loops may seem like a beginners' topic, but there’s a lot to understanding their full use. How do you handle multiple loop variables? When should you use label breaks? How do range loop semantics affect updating loop structs? Miki shows off some examples.

High-Speed Packet Transmission in Go: From net.Dial to AF_XDP — How can you send as many packets per second as possible from a Linux machine using Go? Andree wanted to find out. As he says, “it should be a fun read if you like networking, Go, and benchmarking”, but you can go straight to the code, if you prefer.

The Dysfunctional Options Pattern — How to set optional configs without 'cooking up lasagna layers of functional indirections,' by way of a more builder-like approach.

Go! Unlock Your Tech Potential with Ardan Labs Consulting — Struggling with skill gaps, development speed or complex tech challenges? Ardan Labs specializes in Go, Rust, Docker and K8s to accelerate your software development, optimize architecture, and manage tech debt. Let us supercharge your team!

Kubernetes CPU Limits and Go — Go’s runtime doesn’t inherently know that it’s running within a Kubernetes environment, so you may want to take CPU limits and GOMAXPROCS into account if you’re doing this.

🐭🧀  Feeding a Hungry Mouse Using chromedp and Go — chromedp is a package for remotely controlling a Chrome instance over its DevTools protocol. The developer in this post tried using it to automate the playing of a browser-based game.

Building a Go Static Site Generator Using elem-go and goldmark — Rather than use something like Hugo, you could use some libraries to roll your own static site generator. There’s also a template app to get started quickly.

Omitting Dev Dependencies in Go Binaries — A trick to keep dev packages out of your production build and keep your binary small. We imagine a fix to this will end up in the Go toolchain eventually, but until then…

How Do You Represent a JSON Field That Could Be Absent, null or Have a Value? — Why it’s surprisingly hard to work out if a field has been sent or whether it’s explicitly null when using encoding/json, plus a new library to help with the problem.

A New Way to Host Go Modules on Your Domain — Introducing GoHome, a small server to manage hosting your Go modules on your own domains.