Jakub ZalasJun 3

Final (at least for now) batch of articles are now migrated from dev.to to my personal domain.

These are from my well received event sourcing series: https://zalas.pl/series/event-sourcing/

#eventsourcing #ddd #dddesign #kotlin

Event Sourcing

Jakub Zalas is a software engineer, architect, and trainer who takes great pride in his craft and quality of work. Friends call him Kuba. Get in touch for consultancy, training or software development.

Kuba's blog
Show threadJakub Zalas
https://zalas.pl/functional-domain-model/ #ddd #dddesign #eventsourcing
Functional domain model

A functional domain model is made of pure functions and immutable types. As Domain Driven Design teaches us, it should be expressed in the language shared by everyone involved in the project.

Kuba's blog
Jun 3 at 1:14pmWeb
Show threadJakub ZalasJun 3

https://zalas.pl/functional-event-sourcing/

#ddd #dddesign #eventsourcing #kotlin

Functional event sourcing

Let’s consider how functional domain model might work in practice by applying the event sourcing pattern.

Kuba's blog
Show threadJakub ZalasJun 3

https://zalas.pl/functional-event-sourcing-example-in-kotlin/

#ddd #dddesign #eventsourcing #kotlin

Functional event sourcing example in Kotlin

Let’s implement the Mastermind game with event sourcing. For now, we’re only focusing on the domain model.

Kuba's blog
Show threadJakub ZalasJun 3

https://zalas.pl/deriving-state-from-events/

#ddd #dddesign #eventsourcing #kotlin

Deriving state from events

In event sourcing, the state is derived from events that have happened in the past. In a classic approach, state is persisted while events are lost. In an event-sourced system, it’s the events that are persisted while state is derived.

Kuba's blog
Show threadJakub ZalasJun 3

https://zalas.pl/object-oriented-event-sourcing/

#ddd #dddesign #eventsourcing #kotlin

Object-oriented event sourcing

This time, we’re going to refactor our solution towards an object-oriented (OOP) style. The finite state machine we implemented previously enables us to take advantage of polymorphic behaviour while sticking to immutability.

Kuba's blog
Show threadbonthronJun 3
@jakub_zalas
years ago I went down a rabbit hole of functional programming with streams... really cool, powerful stuff. I built several kinds of games using this: https://baconjs.github.io/
Bacon.js - Functional Reactive Programming library for JavaScript

Bacon.js is a functional reactive programming library for javascript.