In REA, we have a list of highly sought after internal courses available on various topics including AWS, Docker and Elasticsearch. On 7th and 8th May 2018, we added Scala to the list, with over 20 people attending!
How did this all start?
Scala and functional programming have always had some mystique surrounding it. There is this idea that it is too hard or not pragmatic enough. Existing courses are very technical and many people including myself have struggled to complete them.
A Journey into Extensible Effects in Scala
This article is an introduction to using the Scala
Eff library, which is an implementation of Extensible Effects. This library is now under the Typelevel umbrella, which means it integrates well with popular functional programming libraries in Scala like Cats and Monix. I will not touch on the theoretical side of the concept in this post. Instead, I will be using code snippets to describe how you would introduce it to an existing Scala code base. This should hopefully improve extensibility and maintainability of the code. As part of this, I will demonstrate how to build a purely functional program in Scala using concepts such as