Scala3 EventSourcing Demo

A demo app demonstrating Scala 3 features.

This demonstrates the following Scala 3 features:

• Union Types
• Higher Kinded Types
• Traits, Given/Usings
• Subtyping

Building

Requirements

• Scala 3 compiler
• sbt build tool
• Java 11 SDK
• VsCode (Metals extension) to browse through the source code

If you are on MacOSX and have brew installed, you can install the tools via the following:

brew install scala sbt openjdk@11

Compiling

This is a normal sbt project. You can compile code with sbt compile. For more information on the sbt-dotty plugin, see the scala3-example-project.

Running

You can run it with sbt run, and sbt console will start a Scala 3 REPL.

Scala 3 Reading Resources

• Rock the JVM
• Cats - Awesome functional library