Krzysiek Kruczyński

Framework for quickly creating connected applications in Kotlin with minimal effort

Showcase of a backend system with a complex domain made from scratch. Fast&Furious cinema project is a fully architected (modular monolith, event-driven architecture), documented (Architecture Decision Log, C4 model, event storming) and developed (deployment-ready functional-oriented and tested code).

E-Lesson system - functional DDD showcase

Video-on-Demand microservice-based system, featuring microservice and DDD patterns

Architecture decision record (ADR) examples for software planning, IT leadership, and template documentation

pure fp rules in kotlin

Resilient Ratpack microservice for transferring money, showing off quite a little of Domain-Driven Design. Tested with Spock.

Clock app based on server-side streaming with Spring Reactor and RxJS

Static code analysis for Kotlin

Functional approach to modelling a complex domain of a bank transfer

kinesis-kafka-connector is connector based on Kafka Connect to publish messages to Amazon Kinesis streams or Amazon Kinesis Firehose.

Showcase of Spring 5's functional configuration API with Kotlin DSL

🌱 A friendly kotlin library to validate API endpoints using an OpenApi 3.0 and Swagger 2.0 specification

Spring Framework

Common Python utils for testing Confluent's Docker images

The modelling for success/failure of operations in Kotlin

Functional companion to Kotlin's Standard Library

A comprehensive Domain-Driven Design example with problem space strategic analysis and various tactical patterns.

Repository for Test Related Utilities for Micronaut

Extensions for Structurizr

Generates OpenAPI / Swagger Documentation for Micronaut projects

Generic Architecture Tests written in Kotlin using ArchUnit and Junit5

Spring Boot + Vue.js app for finding facebook and twitter friends on a map using Spring Social projects

Implementation of store checkout microservice using DDD, powered by Spring Boot

Resilience4j is a fault tolerance library designed for Java8 and functional programming

Spring Cloud Stream pipeline demo

Custom linux shell implementation with ACID transactional rules applied

Demo of implementing step-by-step Domain Events, Event Sourcing and CQRS

App finding chain of words differing with only one letter, between any two words.

Demo of Spring Data MongoDB mechanisms