Scala Love in the City Scala Love in the City

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Saturday, February 13, 2021

- PST
Alice and the lost pod: practical guide to Kubernetes in Scala
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Following Alice’s adventure to the world of pods and higher-order functions. Now Alice is a professional Scala developer and over the years she has forgotten her trip to the world of pods and higher-order functions. But this time a new adventure found her. Alice needs to bring back the pod home using her knowledge of Scala. Will she be able to discover the link between Scala and Kubernetes and save her friend? You will find it out in this talk.

- PST
Greyhound - Powerful Pure Functional Kafka library
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Wix has finally released to open-source its Kafka client SDK wrapper called Greyhound. Completely re-written using the Scala functional library ZIO. Greyhound harnesses ZIO’s sophisticated async and concurrency features together with its easy composability to provide a superior experience to Kafka’s own client SDKs It offers rich functionality including: - Trivial setup of message processing parallelisation, - Various fault tolerant retry policies (for consumers AND producers), - Easy plug-ability of metrics publishing and context propagation and much more. This talk will also show how Greyhound is used by Wix developers in more than 1500 event-driven microservices.

- PST
Sweet home Scala 3
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I am the type of person who learns new technologies on the job, so I needed a project to explore Scala 3 in-depth. More or less at the same time, we’ve decided to make our apartment just a bit smarter, and I thought this is a perfect occasion to play with Scala 3 (and many other toys).

My plan was simple: start with existing, stable integration: Home Assistant running on Raspberry PI, explore and use Scala on top of that.

Home Assistant has a fantastic ecosystem that reminds me of one we have in Scala. Everything I’ve done with Scala I could have achieved easier and faster with built-in automation, Node-Red or Python but this project was all about learning and fun!

So let me show how it works and how new features from Scala 3 can improve even such a small project.