patchlevel4m ago
We released 1.7.0 of event-sourcing-phpunit! See here for the changelog: https://github.com/patchlevel/event-sourcing-phpunit/releases/tag/1.7.0
#PHP #DDD #EventSourcing #PHPUnit #Testing
Release 1.7.0 · patchlevel/event-sourcing-phpunit

Release Notes for 1.7.0 Feature release (minor) 1.7.0 Total issues resolved: 0 Total pull requests resolved: 1 Total contributors: 1 enhancement 24: Enable PHPUnit mocks in tests thanks to @Dani...

GitHub
Virtual Domain-Driven Design3h ago

Making read models truly expressive from event streams isn't always straightforward. In this live coding talk with @mathiasverraes and @ericevans, we explored techniques for building expressive projections. The key takeaway was seeing practical ways to transform complex events into clear, domain-aligned read models.

Watch: https://virtualddd.com/sessions/ddddd-20-live-coding-expressive-projections/

#DDD #EventSourcing #Projections

[DDDDD-20] Live coding: Expressive Projections

Let’s write some event sourced projections! Our weapons of choice include higher order functions, algebraic data types, pattern matching, all the goodies of a modern programming languages. But the secret behind our success will be our Dogged Determination to Descriptive naming. We’ll observe how our domain language crystallises, how patterns emerge, and how we end up with code that communicates intent.

Virtual Domain-Driven Design
Urs Enzler1d ago

We started using event sourcing over ten years ago. One of the hardest lessons was that there is a kind of events that is not obvious at first but have a big impact on your system design. I call this kind secondary domain events.
https://www.planetgeek.ch/2026/04/01/the-problem-with-secondary-domain-events-in-event-sourcing/

#EventSourcing

The Problem with Secondary Domain Events in Event Sourcing

We started using event sourcing over ten years ago. One of the hardest lessons was that there is a kind of events that is not obvious at first but have a big impact on your system design. I call this kind secondary domain events. In this post, I'll explain what secondary domain events are, and...

planetgeek.ch
Show threadTed M. Young1d ago

This was all triggered by new functionality that I want to add: the ability to set a date/time when concert tickets go on sale that is separate from when the concert was scheduled (entered into the system).

Read all about it at https://ted.dev/articles/2026/03/30/live-coding-journal-mar-30-2026/

#EventSourcing #Java

Live Coding Journal - Mar 30, 2026 | Ted M. Young

Reflections, Learnings, and Mistakes from live coding my JitterTicket Event Sourcing application

Ted M. Young
Chris May1d ago

I recently talked with @bbelderbos about #eventSourcing, #dataStar, and other thoughts that have transformed how I write code today.

https://www.youtube.com/watch?v=8aQ7j8mz5Ug

Chris May on Event Sourcing, Simpler Frontends & AI Workflows

YouTube
patchlevel6d ago
We released 3.15.0 of event-sourcing-bundle! See here for the changelog: https://github.com/patchlevel/event-sourcing-bundle/releases/tag/3.15.0
#PHP #DDD #EventSourcing #Symfony
Release 3.15.0 · patchlevel/event-sourcing-bundle

Release Notes for 3.15.0 Feature release (minor) 3.15.0 Total issues resolved: 0 Total pull requests resolved: 4 Total contributors: 2 enhancement 300: add DatePoint & Uid normalizer and hydrato...

GitHub
Ted M. YoungMar 25

More live coding #Java and #EventSourcing:

I dealt with "external" and "parameter" validation (I didn't implement the third type: "internal" validation) of scheduling conflicts for Concerts.

I also pondered minimal consistency boundaries.

Notes are at: https://ted.dev/articles/2026/03/24/live-coding-journal-mar-24-2026/

Live Coding Journal - Mar 24, 2026 | Ted M. Young

Reflections, Learnings, and Mistakes from live coding my JitterTicket Event Sourcing application

Ted M. Young
Marek 🍉Mar 25

Slides from my talk at Glasgow PHP meetup today. https://speakerdeck.com/super_marek/mastering-event-sourcing-your-parents-holidayed-in-yugoslavia

#GlasgowPhp #ScotlandPhp #eventsourcing #meetup #PHP #Symfony #Laravel #diy #handcrafted #aviation

Ted M. YoungMar 24

Back to streaming, with notes from yesterday's stream: https://ted.dev/articles/2026/03/23/live-coding-journal-mar-23-2026/

I chatted about consistency boundaries, missing-event heuristics, and encoding (serializing) events.

#EventSourcing #Java #TDD

Live Coding Journal - Mar 23, 2026 | Ted M. Young

Reflections, Learnings, and Mistakes from live coding my JitterTicket Event Sourcing application

Ted M. Young
DevOpsDays ZurichMar 20

Event Storming on sticky notes, then straight into code.

Oliver Zihler and Alina Liburkina run a hands-on workshop at DevOpsDays Zürich 2026. Build an event-sourced domain model with Axon Framework and Kotlin.

CQRS, DDD Aggregates, Commands, Domain Events, Projections, and event versioning. All in one session.

https://www.devopsdays.ch/event/program/workshops/oliver-zihler/

#DevOpsDays #DevOps #DDD #EventSourcing