This is a realworld api example app featuring Arrow, Kotlin and Spring Boot.

NOTE: not yet feature complete, see TODOs.

Goals

• experiment functional Kotlin backend programming using Arrow
• implement realworld api spec in order to cover non-trivial use cases
• production grade rest api with strong integration test suite to enable easy refactoring
• clear separation of core business logic (realworld-domain) from the supporting infrastructure (realworld-app, realworld-infra)
  • framework independent domain
  • adopted ideas from onion, hexagonal and clean architectures (they might be all the same)
  • NOTE: realworld-app could be a submodule of realword-infra, but I wanted to put emphasis on the deliverables by using a separate top level module

Prior art

• Simple Inversion of Control in Kotlin without Dependency Injection Frameworks | Part 2

How to build

Prerequisites

Install Docker and Docker Compose:

• Docker installation instructions
• Docker Compose installation instructions

Init DB

docker-compose up -d
./gradlew flywayMigrate

Build

./gradlew build