When building Hey Cuis, a real-time quiz game, we needed a reliable way to inform players about connection problems before they affect gameplay. Nobody wants to lose a game because their internet hiccupped, and worse, not even […]
Building collaborative features in Rails applications often requires preventing multiple users from editing the same record simultaneously. Traditional solutions involve optimistic locking (version checking) or building complex merge strategies. But sometimes you just want to say: “Hey, […]
In enterprise web applications, it’s common to face the need to invalidate a specific user’s sessions immediately. This can happen in situations such as: The technical challenge arises when we need to invalidate all active sessions […]
Sometimes the best product ideas come from small annoyances. I was writing in a blog app and realized that copying and pasting a link to another article felt clumsy. The URL sat there in the editor, […]
When you are building from scratch, time is not just a factor. It’s often the deciding factor. The sooner you can put something real in front of users, the greater your chances of survival. That is […]
You’ve probably written hundreds of Rails migrations by now. You’ve added columns, dropped tables, created indexes, and maybe even thrown in a few puts statements to track what’s happening during those migrations. But here’s something that might surprise […]
We’ve all been there: you’re testing a new feature, changing data, and suddenly realize you’re in production, affecting real users. At Unagi, after a few scares, we decided to implement a simple and reusable solution to […]
Notifications are everywhere in modern web applications. Users expect to be notified when someone comments on their post, shares their content, or invites them to collaborate in a post. But as your Rails application grows, managing […]
I’ve been adding a lot of validations on the client side lately, using native HTML validation. It’s fast, reliable, and there’s no need to hit the server just to check for errors. One of the most […]
While it’s true that we already have an infinite scroll article at Unagi, some releases have happened since it was written regarding the amazing Pagy gem. The implementation is almost identical to our previous article, but the performance improvements […]
Let’s imagine we have a simple app called Turbo Video, where users can watch their favorite videos. The app is straightforward — it displays the video’s title, description, and a video player. Something like this: The code for […]
Let’s imagine we have a dashboard with important data for our business (e.g., number of active users, number of sales, server status). These numbers change over time, and we don’t want to reload the page to […]
