Concurrency is HARD. Like, really hard. When you need multiple tasks running together, things get messy fast. I’ve spent years fighting with threads and locks in other languages, and man, the race…

Let’s face it: modern apps often need to do a million things at once. If your app isn’t set up for that, it can feel clunky and slow. That’s…

Premise A few months ago I worked with a company which provided fully functional backend for online multiplayer games. As part of their product portfolio, they provided their customers with a cli utility, called ds-uploader (dedicated server uploader). Written in Go, this CLI helped the customer: Process all files and assets in a directory of their choice containing their game server. Synchronize each file to a remote object storage bucket (meaning to upload only files that are new or modified).

Blog for DoltHub, a website hosting databases made with Dolt, an open-source version-controlled SQL database with Git-like semantics.

Learn how to use Go's singleflight and errgroup packages, and other important design patterns for concurrency, with real-world examples.