Jeroen Rosenberg
Dev of the Ops - Continuous Deliverer - Software Engineering Consultant @Xebia
Jeroen Rosenberg is an Amsterdam based pragmatic software engineer and consultant focused on building resilient software at Xebia. With a strong background in Java & Scala development and Fast Data Architectures he helps teams deliver great products by using practices, techniques and tools from Lean, Agile, DevOps and Continuous Delivery.
Besides his daily work, he founded the Amsterdam.scala meetup group, still co-hosts and conducts training courses. When not coding or writing you can find him eating nachos at the beach with the love of his life. He’s a proud father of three kids and uses them as an excuse to be able to play with Lego again.
Reactive Spring Boot With Coroutines and Virtual Threads
If you want to get the most out of Spring Boot in terms of low latency, high throughput, and resource efficiency, there’s no way around Spring Boot’s reactive stack WebFlux. However, the price you pay in terms of WebFlux code’s complexity, readability, and maintainability is rather high and will likely give you a lot of headaches.
In this workshop, you’ll learn how Spring Boot’s coroutine support will wipe out all the downsides of the ‘raw’ WebFlux approach and provide you with the best of both worlds: reactive characteristics without the complexity.
You’ll also explore Kotlin’s reactive building blocks, such as coroutines, channels, and flows, and apply them in Spring Boot. By building a reactive API in Spring Boot from scratch, you’ll learn how to:
- Perform non-blocking remote API calls using WebClient.
- Access a relational database with the reactive R2DBC driver.
- Apply parallelism in your business logic.
- Write and test reactive API endpoints.
- Create an advanced streaming API based on Server-Sent Events that combines coroutines and flows.
By the end of the workshop, you’ll know all the ins and outs of reactive programming in Spring Boot with coroutines, as well as the benefits they offer over the WebFlux abstractions Mono and Flux.
Furthermore, you’ll explore Project Loom’s virtual threads and see how they fit into the picture. You’ll also learn how virtual threads can further leverage the power of coroutines.