Scala

Blog Post

The Way of the Request

The Play Framework is a web application framework for Scala and Java inspired by Ruby on Rails. Although I like the official documentation, I always found it lacking in how requests runs through the framework. This article takes the reader on a journey tracing a request through the framework.

Timo Loist

Blog Post

So you want to compose some functions

Let’s say you have a list of functions and you want to compose them. Should be trivial, right? Of course it is, but maybe there’s an elegant way.

Dr. Lars Hupel

Blog Post

What Could Possibly Go Wrong

Polyglot Party with Nextjournal

Jan Stępień

Blog Post

Functional Service in Scala

Functional programming helps programmers to reason about their codebase using referential transparency and side-effect control principles. Let’s push the limit and make pure-functional REST service using IO Monad from Cats-Effect project. First, we will do that using Akka-HTTP library and standard Scala Future as effect type. Afterwards, we will switch to abstract effect F to have a choice, when it comes to run our embedded program.

Alexey Novakov

Blog Post

The language of maths is not the language of your business

Abstractions from category theory can be powerful. But there are reasons why you may want to keep your domain model free of them.

Daniel Westheide

Blog Post

Solving the wrong problems

Daniel Westheide

Blog Post

Functional Validation in Scala

Validation is something everybody needs eventually when working with domain models. The Scala ecosystems offers a wide rage of tools which can be used for this purpose. This blog post introduces some of the most common approaches by applying them to a domain model.

Tobias Neef

Blog Post

Docker images for developers

Docker seems to be all the rage lately. There are docker talks at every conference, hosting Docker containers has become a hosting option with most if not all PaaS providers, and there is hardly a technology left that is not supposed to run better and more flexibly if you wrap it in a Docker container. Well, except maybe for enterprise-level DBMSs, but you can’t have them all. This post provides an example how Docker can be used at the start of the software lifecycle, during development.

Jerry Preissler