Key-Value, Event-Sourcing, Cqrs, Pub/Sub as a Service, Java, Javascript

on YouTube ↗43m

" summary

Shows a working order-processing Java demo that wires key-value entities, event-sourced aggregates, CQRS read views and pub/sub actions into cascading microstreams, using calyx (formerly akka serverless) with Java and JavaScript. Demonstrates concrete concurrency behavior (competing SKU allocation with compensating events), snapshotting strategy, and a high-throughput transactions aggregator proof-of-concept that surprisingly simplifies merchant payment batching. Source code lives on GitHub under mckeeh3 and the demos run end to end.

AI-written summary · about

" chapters (7)

1. 0:00Welcome
2. 3:59Key-value as a service with Java
3. 10:40Event sourcing fundamentals
4. 17:37CQRS architecture benefits
5. 23:17Pub/Sub messaging in Java
6. 33:32Calyx framework overview
7. 35:37Q&A

" related talks

• 43mCommander: Better Distributed Applications through CQRS and Event SourcingBobby Calderwood · Strange Loop 2016
• 49mServerless Event-Driven Services for Spring DevelopersHugh McKee · GeeCON 2023
• 31mA Path to Event Sourcing With Amazon MSKJames Ousby · AWS Summit Online 2020
• 56mDeveloping Event-driven Microservices w/Event Sourcing and CQRSChris Richardson · Philly ETE 2015
• 52mEvent Sourcing and CQRSLutz Huehnken · Scala Days Copenhagen 2017
• 43mUnraveling the Threads: Event-Sourcing, CQRS, and Event-Driven ArchitectureAnton Stöckl · Øredev 2024
• 58mGame of StreamsMark Heckler · Devnexus 2020
• 39mPragmatic Microservices with DDD, CQRS and Event Sourcing Using Axon FrameworkAllard Buijze · DevDays Europe 2019