This is a note for the book Essential Scala. It describes how to use Scala in-the-small.

This is a note for the book Akka in Action.

This is a note for learning Akka HTTP based on the official Akka HTTP document. The Akka HTTP module is a toolkit that implements both server-side and client-side HTTP stack on top of akka-actor and akka-stream. It has serveral API levels.

This is a note for learning Scala based on the tour of Scala. The word “Scala” is an abbreviation of the term SCAlable LAgnuage. It was created in 2003 as a multi-paradigm (OO + functional) programming language that is concise, elegant and type-safe.

This is a note for learning Akka Actor and Stream based on the official document.

This is a note to understand jOOQ in depth.

This article explores the concepts of repository pattern and why not to use it.