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October 3rd, 2024, ISSUE 552

READING

Optimal Scalafmt configuration using Genetic Algorithms

The work described is shipped in two parts: a generic library for genetic algorithms and a web application with Scala.js where you can optimise your very own config.
Anton Sviridov (@velvetbaldmime)
sudori part 6: sbt query · eed3si9n

For sbt 2.0, I’d like to propose a new mechanism of filtering down the subprojects during task aggregation.
Eugene Yokota (@eed3si9n)
Cancellable HTTP requests via Scala's Tapir

This sample shows an HTTP server and an HTTP client, that can cleanly cancel requests, both on the client-side and on the server-side. This is needed for safe disposal of resources.
Alexandru Nedelcu (@alexelcu)
Game of Life with Scala.js and Webassembly

This project implements a very simple Game of Life frontend, and packages it as both webassembly and plain JS using Scala.js 1.17.0's experimental Webassembly backend.
Anton Sviridov (@velvetbaldmime)
Scala without effect systems. The Martin Odersky way.

A hot discussion on Reddit.

EVENTS

Scalar 2025 Early Birds!

Scalar 2025 Early Birds! Grab yours before they're gone and join us in Warsaw for inspiring talks, networking with top Scala developers, and an all-around amazing experience.
Scalar Conference (@scalarconf)
Crack open the black box of sbt with build and test observability, Webinar, Oct 10th

Join Iulian Dragos to learn how Scala developers using sbt can finally observe everything that happens during the build and test feedback cycle, leading to tangible developer productivity gains.
Iulian Dragos (@jaguarul)
Art of Scala, Oct 10th, Warsaw, Poland

Don't miss this live (+online) Scala conference in a great venue in central Warsaw!
Evolution Engineering + ScalaWAW
Scala.IO, Nov 7th-8th, Paris

This edition brings us together in Paris for two days, with a multi-session structure and a large community space. With a great venue, wonderful speakers, and a lot of surprises, we are looking forward to meeting you there!
Scala.IO (@ScalaIO_FR)

RELEASES

Announcing Scala.js 1.17.0

This release comes with a brand new, shiny, experimental WebAssembly backend. You can now, under certain conditions, take your existing Scala.js application and compile it to WebAssembly instead.
Scala.js contributors (@scala_js)
Apache Pekko 1.1.1

A bugfix release.
Pekko Contributors





  1. Scala Times Issue #552

    Optimal Scalafmt configuration using Genetic Algorithms. Cancellable HTTP requests via Scala's Tapir. Game of Life with Scala.js and Webassembly. Scala without effect systems. The Martin Odersky way.. Scalar 2025 Early Birds!.


  2. Scala Times Issue #551

    Functional Programming in Scala - Edu Plugin. Inline your boilerplate - harnessing Scala 3 metaprogramming without macros. Scalar 2025 Early Birds!. Lambda World, Oct 2nd - 4th, Cadiz, Spain. Art of Scala, Oct 10th, Warsaw, Poland.


  3. Scala Times Issue #550

    Autowire: Zero-Cost Dependency Injection. Another bunch of com.lihaoyi Mill issue bounties. Comparison of Kyo and traditional effects. Scala & Akka: How to secure your code. Fun with Types: All Types of Physics Computations.


  4. Scala Times Issue #549

    Capabilities for Control. Scalar 2025 Call for Papers is open!. Unison Forall, Sept 20th, remote conference. Lambda World. Oct 2nd - 4th, Cadiz, Spain. Call for Speakers - Art of Scala, Oct 10th, Warsaw, Poland.


  5. Scala Times Issue #548

    Perfect Tab Completions. David's programming examples knowledge base. Writing an Android app with Scala.js. Unison Forall, Sept 20th, remote conference. Lambda World. Oct 2nd - 4th, Cadiz, Spain.


  6. Scala Times Issue #547

    Streaming Hash Computations. Launch Scala, faster than Native. Distributed locks in Kubernetes with Scala. The Future Software Engineer. Lambda World. Oct 2nd - 4th, Cadiz, Spain.


  7. Scala Times Issue #546

    Upcoming Changes to Givens in Scala 3.7. Unexpected Scala Functions: groupMap. Lambda World. Oct 2nd - 4th, Cadiz, Spain. Call for Speakers - Art of Scala, Oct 10th, Warsaw, Poland. Scala.IO, Nov 7th-8th, Paris.


  8. Scala Times Issue #545

    ZIO-like dependency injection using implicit resolution. The Mechanics of Mitigation. Publishing test traces to Grafana using otel4s and weaver. Announcing Decisions4s: When Ifs Are Not Enough. State of structural typing support in Scala 3.3.0.


  9. Scala Times Issue #544

    Direct-style Bootzooka: 2024 update | SoftwareMill. The Tri-Z Architecture: a Pattern for Layering ZIO Applications in Scala. The Error Management Manifesto. Migrating to Safety. Benchmarking database sharding in Akka | @lightbend.


  10. Scala Times Issue #543

    Lambda World. Oct 2nd - 4th, Cadiz, Spain. Metals v1.3.4 - Thallium | Metals.


  11. Scala Times Issue #542

    Effective Error Handling. Developer Ecosystem Survey 2024. Pseudorandom Acts of Kindness. Scala 3 Metaprogramming Learning Resources. Scala to WebAssembly: How and Why.


  12. Scala Times Issue #541

    Tapir documentation improvements. Checked exceptions: fixed!. Use cases for Scala. ScalaWAW #33 - beach party! Jul 25th. Lambda World. Oct 2nd - 4th, Cadiz, Spain.


  13. Scala Times Issue #540

    PureConfig with Scala 3 - Tutorial. Developer Experience in Open Source Software. "Learn Functional Programming The Fast Way!" PDF is free. ScalaBridge London @ SiriusXM!, Jul 18th. ScalaWAW #33 - beach party! Jul 25th.


  14. Scala Times Issue #539

    YAML as a valid Scala 3 code. ExecutionContext.parasitic and Friends. ScalaBridge London @ SiriusXM!, Jul 18th. Lambda World. Oct 2nd - 4th, Cadiz, Spain. Faster and less mysterious sbt builds with Develocity.


  15. Scala Times Issue #538

    Make Impossible States Unrepresentable: Network Edition!. Ten things I like about Scala 3. Compiling Bad Code. The ZIO 2 “mental model”. JetBrains course: Functional Programming in Scala.


  16. Scala Times Issue #537

    A Logic Circuit Simulator with Cats-Actors. Magda Stożek - My Scala Story. Lambda World. Oct 2nd - 4th, Cadiz, Spain. ScalaBridge London Jun 20th, 2024. Armored type safety with Iron.


  17. Scala Times Issue #536

    Scala 3 improvements in Metals (and hopefully, IntelliJ IDEA). Purify Your Tests III: Lean, Mean Testing Machine. 12 years of the com.lihaoyi Scala Platform. Scala Is Not Going Anywhere. OpenTelemetry With Scala Futures.


  18. Scala Times Issue #535

    GraphQL in Scala: Role-Based Access Control. WebSocket chat using structured concurrency, Ox & Tapir. Tapir tutorials, part 1. Scala 2.13 LTS planning. A Sighting of filterA in Typelevel Rite of Passage.


  19. Scala Times Issue #534

    Lagom is approaching end of life: possible migration paths. WebSockets in Scala, Part 2: Integrating Redis and PostgreSQL. Scala service combined with PostgreSQL, Flyway, Doobie, Ciris, IO(Cats Effects), Http4s…. Akka 24.05: More Security. More Performance. More Efficiency.. Forking and Interruption in ZIO.


  20. Scala Times Issue #533

    Apache Pekko becomes a Top-Level Project. Scala Meetup at Evolution. Purify Your Tests: 2 Parametric, 2 Declarative. Introducing TARP Stack – Tapir, React and PostgreSQL. IO effect tracking using Ox.


  21. Scala Times Issue #532

    Duchess at Scala.io. Purify Your Tests. Tuning ZIO for high performance. JetBrains Joins the Scala Center Advisory Board!. Introducing com-lihaoyi Issue Bounties.


  22. Scala Times Issue #531

    Que es un Higher-Kinded Type de Scala?. ScalaMatsuri, June 7th-9th, Tokyo, Japan. Custom-compile errors with a venegance. Data Engineering at Netflix using Apache Spark and Flink.


  23. Scala Times Issue #530

    Direct-style Effects Explained. How to build AI apps with Scala 3 & Besom. Spec-first and code-first, hand in hand. ScalaMatsuri, June 7th-9th, Tokyo, Japan. Direct Style Scala Stack - An Experiment.


  24. Scala Times Issue #529

    Jacek Kunicki - My Scala Story. Kalix tutorial: Building invoice application. Safe direct-style Scala: Ox 0.1.0 released. LambdaConf, May 4th-10th, Estes Park, Colorado. LambdaConf - The Grand Hackathon Finale, May 10th.


  25. Scala Times Issue #528

    Lean Scala: Reddit discussion. Learn Functional Programming The Fast Way!. Caliban on Tailcalls's GraphQL benchmarks. LambdaConf, May 4th-10th, Estes Park, Colorado. LambdaConf - The Grand Hackathon Finale, May 10th.


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