Scalac's blog

Scala is all about type-safety and making the compiler work for you. But what if we need to use SQL which is not a part of Scala? The compiler is not able to validate and type check raw queries. The solution for that problem is Domain Specific Language (DSL). We already have Slick that provides DSL for […]

Back in the day, business used to be much simpler. The only requirements were all-in-one straightforward solutions which usually ended up as monoliths. And because of that, supporting systems used to be much simpler too. However, over time the risk of ending up with a clumsy, too tightly-coupled system became greater and greater. These days, […]

In this post, we will discuss Each Library. Each allows Scala users to write imperative syntax, which is later on translated into scalaz monadic expressions. In a way, it’s adding syntactic sugar on top of ordinary Scala. Simplicity and the way it extends ordinary code caught my attention, so I’ve decided to dig deeper. This […]

Cats library, which helps to write purely functional code, is a quite young project in Scala. It brings many structures and functional constructs for you to use. The library itself is designed in a modular way, so we can use only things that we really need. In this post I’ll try to look at the Free […]

We can all agree that it’s useful to be able to express a number. Or a character. It could be argued that most code is built upon some set of primitives. And naturally simple types work well in a limited number of use cases: algorithms, tutorials, small/focused applications, etc. The moment the domain outgrows the […]

Hello. In this post I’d like to describe my experiences with Android, Scala and SBT. I will cover the goals I wanted to achieve, issues I encountered and the results I reached in the end.

I believe that the work on keeping quality high should start from the very beginning of the project. When it comes to actual implementation, setting up build configuration is the very first thing one makes. The choice of tools has a huge impact on the process and results. Additionally, the build itself is a program […]

Hello! In this post we’ll go through a short introduction to macros and learn how to use them to our advantage.

During our last internal Backend Guild meeting we discussed the topic of Apache Spark. This post is to fill the details we missed and to organize the knowledge so it might be useful for people willing to start with Spark.

Hi. In this post, we will be exploring some unexpected gotchas we found while working with Scala. Hopefully, it will help you to better understand Scala and fix some naughty bugs :)