Call me crazy, but I firmly believe that Commands (DTOs) in a #CQRS application are part of the domain.
They are the imperative that is given by the stakeholder.
Yes, you will have infrastructure commands like "clean up some tables", but "sudo make me a sandwich" is business domain.
I took the chance to refactor the sample application of this blog post (https://gaetanopiazzolla.github.io/java/design-patterns/springboot/2025/03/17/cqrs.html) to showcase how I'd structure a #SpringModulith application / module that's supposed to use #CQRS as second-level, technical decomposition approach. Explanations in the README: https://github.com/odrotbohm/cqrs-spring-modulith 
If you're in an industry long enough, you'll see the same trends pop up again and again, sometimes just with different names. This post is basically advocating for #CQRS (command query request segregation), a practice that many of us in the #php community were using over 10 years ago, but giving it a new name for Laravel users.
Would you be interested in a blog post about using event-sourcing with API Platform?
I'm thinking about diving into how this could work with API Platform, leveraging its powerful tools for building modern APIs while keeping event-driven persistence in mind.
Would this be something you’d like to read about? Or do you have specific challenges or questions around event-sourcing and API Platform? Let me know!
I've been pondering about creating EventSourcing, CQRS & DDD scaffolding from scratch in TypeScript.
There doesn't seem to be an OpenSource basic scaffolding for this using RxJS? ( I mean the basic bang like NgRx ).
DDD -> NgRx
- Command -> Action ( in imperative )
- Command Handler -> Effect
- Domain Event -> Action ( in past tense )
- Aggregate state -> a Store entry
- Aggregate state's apply -> Reducer
Did I get this right?
Aufnahme verfügbar (Video / Podcast)
#SoftwareArchitektur im #Stream
#DomainDrivenDesign: Ein vollständiges Beispiel 2/2
#DDD #DomainDriven
Themen dieses Mal:
taktisches Design, #CQRS, #EventSourcing und hexagonale Architektur
https://software-architektur.tv/2024/11/22/episode241.html
Just published - the 2nd part of my series on Medium via #ITNEXT
Unraveling CQRS, Event Sourcing, and EDA - Part 2: Event Sourcing
https://itnext.io/unraveling-cqrs-event-sourcing-and-eda-part-2-event-sourcing-434404e035f0
Hey folks!
I‘m looking for new professional opportunities from February 25 on!
If your org is hiring or you have recommendations … shoot me a message, please! 
#dddesign #golang #hexagonal #eventsourcing #cqrs #eventdriven #tdd
Reposts very much appreciated! 
Today: Advanced #Microservices Workshop at #jaxcon
Migration to Microservices
#CQRS & #EventSourcing
#Transaction & Consistency
Integration Beyond REST
This week saw #Kandddinsky 2024 land in Berlin, and the diversity of topics truly inspired me!
From #sociotechnical to #CQRS, and everything #events to #typography, there was technical, social, and philosophical content on offer. To round this off an open space day (unconference) brought out the grass-roots atmosphere and meant that the community were pushing the state of the art in terms of #software design...
More here inc. higher res photos: https://jacquiread.com/posts/kandddinsky-24/?utm_source=Mastodon&utm_medium=Social&utm_campaign=professional&id=ZLlG2EfCVs
I'm searching for a new professional opportunity from February on, an earlier start is possible but I'm not in a rush!
I bring along 25+ years of experience as a software developer, architect, team lead, learning designer (trainer).
Please share! :-)
Some of my skills and interests:
#golang #dddesign #hexagonal #portsandadapters #collaboration #agile #eventsourcing #cqrs
Slides for my talk "DoneThat with Fyne, DDD, EventSourcing, and CQRS" last Friday at #FyneConf 2024:
Ready to scale your #ASPNETCore apps? Learn how to implement CQRS and MediatR to separate commands & queries, boosting performance and maintainability. Perfect for developers and architects alike! 
#CQRS #MediatR #dotnet #ScalableApps #programming
Gerade eben ging es los: @SimonMartinelli erzählt uns in #Luzern etwas über #CQRS mit modernem #Java – spannend!
Как сменить технологию и не закопаться в рефакторинге: опыт внедрения DDD в проект на FastAPI — Часть 2
Привет, хабравчане! В первой части были рассмотрены паттерны проектирования Repository и Unit of Work. Это вторая часть цикла о DDD. В ней расскажу, как добавить к проекту событийно-ориентированную архитектуру. Код подопытного приложения ищите в репозитории по ссылке . Подробнее о DDD и паттернах Repository и Unit of Work читайте в первой части по ссылке ...
CQRS Command Handlers with Marten https://jeremydmiller.com/2024/09/09/cqrs-command-handlers-with-marten/
This week we'll have two talks, both on Tuesday, but in different cities. Aaron Digulla will be in Zurich with the topic “Hotfixes, Refactoring and Chained Unit Tests” (
) and @SimonMartinelli visits Lucerne with “CQRS with modern Java” (
). Both talks start at 06:15 PM and take place in the immediate vicinity of the train stations. Afterwards, all participants are invited to an aperitif!
Ready for more? Dive into advanced #CQRS and #Mediator techniques with #FluentValidation, logging, and event-driven architecture in #ASPNETCore. Learn how to optimize your app for real-world use! #dotnet #DevTips #Programming #MediatR
New blog post! Explore how to implement #CQRS and the #Mediator pattern in #ASPNETCore for better scalability, performance, and maintainability. Perfect for building clean, maintainable codebases! 
#dotnet #DevCommunity #Programming #MediatR
The proposal for my talk at #FyneConf2024 was accepted! Already started structuring topics, collecting and sorting thoughts - always find it a nice experience to reflect and find the right level of detail to tell a complete story. #Fyne #GoLang #DDD #CQRS #EventSourcing #GTD
