#eventsourcing — Public Fediverse posts

New blog post: My Work in Progress Ruby stack ismaelcelis.com/posts/2026-0... #eventsourcing #cqrs

My WIP Ruby stack

New blog post: My Work in Progress Ruby stack ismaelcelis.com/posts/2026-0... #eventsourcing #cqrs

My WIP Ruby stack

New blog post: My Work in Progress Ruby stack ismaelcelis.com/posts/2026-0... #eventsourcing #cqrs

My WIP Ruby stack

New blog post: My Work in Progress Ruby stack ismaelcelis.com/posts/2026-0... #eventsourcing #cqrs

My WIP Ruby stack

New blog post: My Work in Progress Ruby stack ismaelcelis.com/posts/2026-0... #eventsourcing #cqrs

My WIP Ruby stack

I have been iterating on Event Sourcing and CQRS architectures for nearly a decade. When I first started with this pattern around 2016 and 2017, the implementation was considerably more complex. Over the years I have stripped it back again and again, and what I have arrived at now is something I'm genuinely happy with: a small, focused TypeScript library backed by DynamoDB that does exactly what it needs to and nothing more: https://coderbyheart.com/es-and-cqrs-on-aws-simplified #eventsourcing #cqrs #aws

I have been iterating on Event Sourcing and CQRS architectures for nearly a decade. When I first started with this pattern around 2016 and 2017, the implementation was considerably more complex. Over the years I have stripped it back again and again, and what I have arrived at now is something I'm genuinely happy with: a small, focused TypeScript library backed by DynamoDB that does exactly what it needs to and nothing more: https://coderbyheart.com/es-and-cqrs-on-aws-simplified #eventsourcing #cqrs #aws

I have been iterating on Event Sourcing and CQRS architectures for nearly a decade. When I first started with this pattern around 2016 and 2017, the implementation was considerably more complex. Over the years I have stripped it back again and again, and what I have arrived at now is something I'm genuinely happy with: a small, focused TypeScript library backed by DynamoDB that does exactly what it needs to and nothing more: https://coderbyheart.com/es-and-cqrs-on-aws-simplified #eventsourcing #cqrs #aws

I have been iterating on Event Sourcing and CQRS architectures for nearly a decade. When I first started with this pattern around 2016 and 2017, the implementation was considerably more complex. Over the years I have stripped it back again and again, and what I have arrived at now is something I'm genuinely happy with: a small, focused TypeScript library backed by DynamoDB that does exactly what it needs to and nothing more: https://coderbyheart.com/es-and-cqrs-on-aws-simplified #eventsourcing #cqrs #aws

I have been iterating on Event Sourcing and CQRS architectures for nearly a decade. When I first started with this pattern around 2016 and 2017, the implementation was considerably more complex. Over the years I have stripped it back again and again, and what I have arrived at now is something I'm genuinely happy with: a small, focused TypeScript library backed by DynamoDB that does exactly what it needs to and nothing more: https://coderbyheart.com/es-and-cqrs-on-aws-simplified #eventsourcing #cqrs #aws

Your customer received €50. The notification on their phone says "New balance: €100." Should be €150 — the notification queried the read model before the projection committed.

That race lives in most CQRS systems. Wrote up how to close it for good in PHP — by emitting derived events from inside the projection.

https://blog.ecotone.tech/stop-subscribing-to-domain-events

#PHP #EventSourcing #CQRS #Ecotone

Your customer received €50. The notification on their phone says "New balance: €100." Should be €150 — the notification queried the read model before the projection committed.

That race lives in most CQRS systems. Wrote up how to close it for good in PHP — by emitting derived events from inside the projection.

https://blog.ecotone.tech/stop-subscribing-to-domain-events

#PHP #EventSourcing #CQRS #Ecotone

Your customer received €50. The notification on their phone says "New balance: €100." Should be €150 — the notification queried the read model before the projection committed.

That race lives in most CQRS systems. Wrote up how to close it for good in PHP — by emitting derived events from inside the projection.

https://blog.ecotone.tech/stop-subscribing-to-domain-events

#PHP #EventSourcing #CQRS #Ecotone

Your customer received €50. The notification on their phone says "New balance: €100." Should be €150 — the notification queried the read model before the projection committed.

That race lives in most CQRS systems. Wrote up how to close it for good in PHP — by emitting derived events from inside the projection.

https://blog.ecotone.tech/stop-subscribing-to-domain-events

#PHP #EventSourcing #CQRS #Ecotone

Your customer received €50. The notification on their phone says "New balance: €100." Should be €150 — the notification queried the read model before the projection committed.

That race lives in most CQRS systems. Wrote up how to close it for good in PHP — by emitting derived events from inside the projection.

https://blog.ecotone.tech/stop-subscribing-to-domain-events

#PHP #EventSourcing #CQRS #Ecotone

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

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

Next week I will speak at BASTA! Conference in Frankfurt, about #SoftwareArchitecture, #CSharp, #LLM use in #CQRS and #EventSourcing systems, and much else. 🌎 Bring your thinking hat for my #BASTAllionaire game show 🎉! Say hello if you see me, or come talk about #DevExpress. 🚀 https://basta.net/frankfurt/

Next week I will speak at BASTA! Conference in Frankfurt, about #SoftwareArchitecture, #CSharp, #LLM use in #CQRS and #EventSourcing systems, and much else. 🌎 Bring your thinking hat for my #BASTAllionaire game show 🎉! Say hello if you see me, or come talk about #DevExpress. 🚀 https://basta.net/frankfurt/

Next week I will speak at BASTA! Conference in Frankfurt, about #SoftwareArchitecture, #CSharp, #LLM use in #CQRS and #EventSourcing systems, and much else. 🌎 Bring your thinking hat for my #BASTAllionaire game show 🎉! Say hello if you see me, or come talk about #DevExpress. 🚀 https://basta.net/frankfurt/

Next week I will speak at BASTA! Conference in Frankfurt, about #SoftwareArchitecture, #CSharp, #LLM use in #CQRS and #EventSourcing systems, and much else. 🌎 Bring your thinking hat for my #BASTAllionaire game show 🎉! Say hello if you see me, or come talk about #DevExpress. 🚀 https://basta.net/frankfurt/

Next week I will speak at BASTA! Conference in Frankfurt, about #SoftwareArchitecture, #CSharp, #LLM use in #CQRS and #EventSourcing systems, and much else. 🌎 Bring your thinking hat for my #BASTAllionaire game show 🎉! Say hello if you see me, or come talk about #DevExpress. 🚀 https://basta.net/frankfurt/

@steve @evan

This is a nice video that demonstrates #EventSourcing with #Datastar + #SSE in a #Python context for the backend..

https://pyvideo.org/flaskcon-2025/death-to-the-spinner-event-sourcing-for-reactive-web-apps.html

@steve @evan

This is a nice video that demonstrates #EventSourcing with #Datastar + #SSE in a #Python context for the backend..

https://pyvideo.org/flaskcon-2025/death-to-the-spinner-event-sourcing-for-reactive-web-apps.html

@steve @evan

Oh, that is very interesting. I will queue this up for inclusion in the delightful fediverse development curated list.

#Datastar may be a great library to check out here, and goes further in #hypermedia approach, where #HTMX considers itself feature-complete. Datastar uses #SSE to keep the connection to the client open. The client-side JS lib that is needed is super small. In datastar apps most of the business logic lives in the backend, and it lends itself very well for #EventSourcing. The original author/co-maintainer uses it with #NATS which also serves as the event store.

https://data-star.dev

@steve @evan

Oh, that is very interesting. I will queue this up for inclusion in the delightful fediverse development curated list.

#Datastar may be a great library to check out here, and goes further in #hypermedia approach, where #HTMX considers itself feature-complete. Datastar uses #SSE to keep the connection to the client open. The client-side JS lib that is needed is super small. In datastar apps most of the business logic lives in the backend, and it lends itself very well for #EventSourcing. The original author/co-maintainer uses it with #NATS which also serves as the event store.

https://data-star.dev

I've developed #Ecotone Framework based on the principle that we should fully focus on business features, not the technical infrastructure part.

However, in some cases where optimization of requests is critical, auto-initialization may come with a performance penalty.

For this #Ecotone provides now migrations, that can help optimize this process:

https://docs.ecotone.tech/modelling/migrations-storage

#PHP #Messaging #CQRS #EventSourcing #DDD #SoftwareArchitecture

I've developed #Ecotone Framework based on the principle that we should fully focus on business features, not the technical infrastructure part.

However, in some cases where optimization of requests is critical, auto-initialization may come with a performance penalty.

For this #Ecotone provides now migrations, that can help optimize this process:

https://docs.ecotone.tech/modelling/migrations-storage

#PHP #Messaging #CQRS #EventSourcing #DDD #SoftwareArchitecture

I love this presentation about #DataStar that also shows why #eventSourcing can be so valuable.

https://craftcms.com/events/dot-all-2025/sessions/real-time-collaboration-with-sprig-and-datastar

I love this presentation about #DataStar that also shows why #eventSourcing can be so valuable.

https://craftcms.com/events/dot-all-2025/sessions/real-time-collaboration-with-sprig-and-datastar

Akka is suggestion Event Sourcing as the collaboration pattern for agentic systems? WDYT? Any other pattern you prefer instead?

#DDDEurope #EventCentric #Akka #EventSourcing #AgenticAI

Akka is suggestion Event Sourcing as the collaboration pattern for agentic systems? WDYT? Any other pattern you prefer instead?

#DDDEurope #EventCentric #Akka #EventSourcing #AgenticAI

In today's Learning Ensemble, a lot of things around #EventSourcing became clear, as they do when you actually implement things.

We're just getting started using #TDD to build an event-sourced aggregate, and already I clearly see the natural split between Commands Generate Events and Events Change State.

#Ensembling #MobProgramming

In today's Learning Ensemble, a lot of things around #EventSourcing became clear, as they do when you actually implement things.

We're just getting started using #TDD to build an event-sourced aggregate, and already I clearly see the natural split between Commands Generate Events and Events Change State.

#Ensembling #MobProgramming

Très bon article par notre ami @alanpoulain des @cooptilleuls montrant comment mettre en place l' #EventSourcing en #PHP avec #ApiPlatform et le framework #Ecotone développé et maintenu par @dgafka.

https://les-tilleuls.coop/blog/api-platform-et-event-sourcing-avec-ecotone

Très bon article par notre ami @alanpoulain des @cooptilleuls montrant comment mettre en place l' #EventSourcing en #PHP avec #ApiPlatform et le framework #Ecotone développé et maintenu par @dgafka.

https://les-tilleuls.coop/blog/api-platform-et-event-sourcing-avec-ecotone