Spring Boot WebSocket – Building a Multichannel Chat in Java
In this text I will build Spring Boot WebSocket chat with multichannel support. A lot of Spring Web Flux and reactive programming included.
Java
Java is one of the most popular programming languages. It’s also the language I’ve spent most of my career working with. In this category, I share my experience working in Java, and I’ll also spotlight curiosities from across the Java ecosystem.
You can expect:
ArchUnit Guide – How to Unit Test Your Architecture
ArchUnit will help you whenever the compiler will not make it, especially in enforcing a package structure or architecture.
Lock-Free Programming – From Primitives To Working Structures
Locking is not only way to deal with concurrency. Lock-Free and Wait-Free approaches are on the opposite side. Let’s dive into them.
Benchmarking Java Streams
Today, I would like to take a step forward and check how well Java Streams behave when put under pressure.
Monad vs Functor vs Applicative: Functional Containers Summary
In this text, the final summary of my categories theory series, I will use my spotlight and take a closer look at the relations between all three previously described functional containers, namely: Functor, Monad, and Applicative. Below, you will find a comparison of them in terms of: Theory Laws Methods Possibilities & Use Cases Theory … Read more
Secure Spring Boot 3 Application With Keycloak
Today, I would like to create a separate text with the same topic but for Spring Boot 3 and Keycloak.
Secure Spring Boot Application With Keycloak
I will describe how you can secure your Spring Boot based REST API with the help of Keycloak.
What Is Applicative?
Applicative is just another concept similar in meaning and history to Functors and Monads. Besides explaining the theory behind it, I will implement a simple Applicative. I will also use Optional, to show what advantages Applicatives may give us. The source code for this article is available in GitHub repository. Why Should We Care About … Read more
What Is Functor?
Functor is a concept originating from mathematics, to be exact, from a part of mathematics called category theory. Here I will try to give you some more insight into Functors — what they are, how they work, and what the theory behind them is. I will also implement a simple Functor to better understand how they work … Read more
Calling allMatch On Empty Stream
Have you ever wonder what allMatch on empty Stream will return ? Here you will get all information needed to understand why it works this way.