Scala 3 ZIO Tapir Laminar Playground

Contributing

Database

Install PostgreSQL

Create a database named nepalius (configurable in application.conf)

Backend

Start up sbt:

./sbt

Once sbt has loaded, you can start up the application

> ~backend/reStart

This uses revolver which automatically rebuilds the application when you make code changes.

Frontend

Run Dev Server

cd frontend
npm install
npm run dev

Compile the frontend ScalaJS to JavaScript

./sbt

Once sbt has loaded

> ~frontend/fastLinkJS

Tech Stacks

• Scala 3 for backend
• TypeScript for frontend
• ZIO as an Effect system
• ZIO-HTTP to write HTTP endpoints
• ZIO-Quill for compile-time SQL query generation
• Flyway for database migration
• PostgreSQL as database
• ScalaJS for frontend
• Laminar for reactive frontend
• NextJS as frontend framework
• React for building user interfaces
• MUI for UI components

Development Approaches

• Effectful Functional Reactive Programming
• Domain Driven Design
• Hexagonal Architecture
• Mobile First Design