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April 18th, 2024, ISSUE 528

READING

Lean Scala

For a start, we can identify a recommended style to write lean Scala code.
Martin Odersky (@Odersky)
Lean Scala: Reddit discussion

A discussion on Reddit, where Scala users comment on Martin's recent blog post.
Besom and Smithy4s on AWS - Scala 3 good vibes only

In this post we want to build a service using Scala 3, which performs some operations with AWS services, but doesn't use the officially provided AWS SDK for Java. Not only do we want to make a running service, we also want to deploy this service to AWS Fargate, using Besom - a pure Scala 3 SDK for Pulumi.
Anton Sviridov (@velvetbaldmime)
Learn Functional Programming The Fast Way!

This little book has an audacious goal: As affordably as possible, to help OOP developers who use languages like Java, Kotlin, Python, and C++ learn the concepts that take you to the cusp of using Scala’s two main FP libraries: Cats Effect and ZIO.
Alvin Alexander (@alvinalexander)
Caliban on Tailcalls's GraphQL benchmarks

The new Caliban version is doing very well, being slightly ahead of the Rust solution, and far ahead some of the other ones.
Pierre Ricadat (@ghostdogpr)

EVENTS

LambdaConf, May 4th-10th, Estes Park, Colorado

Get ready!
LambdaConf (@lambda_conf)
LambdaConf - The Grand Hackathon Finale, May 10th

The Hackathon provides an opportunity to put the theories and concepts from LambdaConf into immediate practice. It's an interactive arena for trying out new ideas, testing them, and producing innovative solutions.
LambdaConf (@lambda_conf)
ScalaMatsuri, June 7th-9th, Tokyo, Japan

The largest international Scala conference in Asia.
ScalaMatsuri (@ScalaMatsuri)

VIDEOS

The Death of Monads? Direct Style Algebraic Effects

The purpose of monads and their alternatives (old and new). For people who love monads, hate monads, and those who don’t get them.
Yevhenii Zelenskyi (@impurepics)

RELEASES

wsl-snapshot

Batch scripts in Scala for snapshotting and restoring WSL (Windows Subsystem for Linux)
Samik R
Metals 1.3.0 - Thallium

New Scala versions support, Java Home improvements, Automatic imports settings, Preferred build server settings, Inlay hints, Exhaustive matches for union types, and more!
metals contributors
Caliban 2.6.0

The highlight of this release is that Websocket support has been added to the QuickAdapter. Apart from that, there are quite a few performance improvements, in particular some coming from zio-query that should make things a lot faster if you use queries with a DataSource.
Caliban contributors
raise4s

Porting of the Raise DSL from the Arrow Kt Kotlin library.
Riccardo Cardin (@riccardo_cardin)





  1. 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.


  2. Scala Times Issue #527

    How implicits are useful . ScalaWAW #32, Apr 18th, Warsaw. LambdaConf, May 4th-10th, Estes Park, Colorado. LambdaConf - The Grand Hackathon Finale, May 10th. ScalaMatsuri, June 7th-9th, Tokyo, Japan.


  3. Scala Times Issue #526

    Announcing the Scala Ambassadors initiative. Supporting high-performance response streaming in Shardcake. IntelliJ Scala Plugin 2024.1 Is Out!. LambdaConf, May 4th-10th, Estes Park, Colorado. ScalaMatsuri, June 7th-9th, Tokyo, Japan.


  4. Scala Times Issue #525

    Scams in the Scala Community update. Why we bet on Scala at SwissBorg. Capture Checking in Scala 3.4. Why Effects libs? . Benchmarking Tapir: Part 3 (Loom).


  5. Scala Times Issue #524

    Tapir dropping Scala 2.12 support. Scala 3 Roadmap for 2024. Leveraging sbt remote caching on a big modular monolith. Krzysztof Ciesielski - My Scala Story. The Montréal Effect: Why Programming Languages Need a Style Czar.


  6. Scala Times Issue #523

    Zainab Ali - My Scala Story. Handling errors in direct-style Scala. Scala 3.3.2 post-mortem analysis. Distributed Context Propagation with otel4s. Pre-SIP: Improve Syntax for Context Bounds and Givens.


  7. Scala Times Issue #522

    The Functional Programming in Scala Course Is Out!. Shipping your code to cloud with Scala, Besom and Pulumi. Flavors of shared state in Cats Effect. Pekko Akka Compatibility. Benchmarking Tapir: Part 2.


  8. Scala Times Issue #521

    What to do with your End Of Life Akka?. Introducing Playwright-jsEnv for unit testing in scala-js environments. The holy graal of GitHub Actions. Gabriel Volpe - My Scala Story. Game development in Scala.js with David Smith.


  9. Scala Times Issue #520

    My team built and productionized a custom rate limiter in Scala. Benchmarking Tapir: Part 1. WebSockets in Http4s. Improving my Distributed System with Scala 3 (Part 2). Tomas Mikula - My Scala Story.


  10. Scala Times Issue #519

    Debugging session #1: zio-logging & quill. Scala Developer Advocate open hours - AMA . Better Shell Scripting with Scala-CLI. C-style for loops in Scala 3. Paweł Marks - My Scala Story.


  11. Scala Times Issue #518

    Scala Center Roadmap for 2024. Maciej Gorywoda - My Scala Story. Vladyslav Pekker - My Scala Story. Nicolas Rinaudo - My Scala Story. Adam Warski - My Scala Story.


  12. Scala Times Issue #517

    #1BRC in Scala & Scala-Native. Errors happen. Can we get rid of them using ZIO Test?. Scala IO, Feb 15th-16th, Nantes, France. Functional stream processing workshop before Scalar, Mar 20th, Warsaw, Poland. Scalar, March 21st - 22nd, Warsaw, Poland.


  13. Scala Times Issue #516

    GraphQL in Scala: Handling side effects. Type class constraints in object algebras. Migrating event sourced Akka application from CockroachDB to AlloyDB. Jakub Kozłowski - My Scala Story. Scala 3: My migration journey.


  14. Scala Times Issue #515

    Deriving Tail Recursive Fibonacci. Virtual Threads Looming with Adam Warski. Scala Meetup, Jan 31st, Hamburg, Germany. Scala Meetup @ MOIA feat. VirtusLab, Feb 1st, Berlin, Germany. Scala IO, Feb 15th-16th, Nantes, France.


  15. Scala Times Issue #514

    Kotlin from Scala perspective: Advent Of Code 2023. Partially applied functions and currying. GraphQL in Scala: Advanced Schema Generation. Async File IO. Update NextDNS with a Scala CLI script.


  16. Scala Times Issue #513

    Scala 2 Macro Tutorial. A Beginner's Guide to GraphQL in Scala. Writing modular application using the Kyo library. What Can Scala Learn from Rust?. Scala IO 2024, Feb 15th-16th, Nantes, France.


  17. Scala Times Issue #512

    Scala's great ecosystem. What Can Scala Learn from Rust?. Scala IO 2024, Feb 15th-16th, Nantes, France. Scalar 2024 CFP, March 21st-22nd, Warsaw, Poland. LambdaConf 2024, May 4th-10th, Estes Park, Colorado.


  18. Scala Times Issue #511

    Designing a (yet another) retry API. The compilation cost of implicits. Scala Survey Results 2023. Get started with Scala. The X-Ray Mode.


  19. Scala Times Issue #510

    IntelliJ Scala Plugin 2023.3. How to avoid For-Comprehension Pitfalls in Scala. My migration journey. #89 Algebraic Effects with Kyo: Happy Path Programming. Scala in the City, Dec 14th, London.


  20. Scala Times Issue #509

    Type class derivation with ZIO Schema. Scala traits vs enums for ADTs. Practical Type-Level Programming in Scala 3. Extension of Erased Values in Scala 3. For-Comprehension Use Cases in Scala.


  21. Scala Times Issue #508

    Effective Test Parameterization with ScalaTest Tables. Indoor Vivants: Scala Native and Swift: building Twotm8 MacOS app. Entry 1: fs2, gRPC, Triton Inference Server. Poll: Semiauto derivation in circe for Scala 3. Introduction to Functors With Scala 3.


  22. Scala Times Issue #507

    Scala Left Fold Parallelisation - Three Approaches. Advent of Code 2023. Helix and Scala. 10% discount for Functional Scala, Nov 30th - Dec 1st, London. LambdaConf 2024, May 4th-10th, Estes Park, Colorado.


  23. Scala Times Issue #506

    In Scala 3, use 4 Spaces for Indentation. Writing a Chat With Akka. How to retry a Future in Scala. 10% discount for Functional Scala, Nov 30th - Dec 1st, London. LambdaConf 2024, May 4th-10th, Estes Park, Colorado.


  24. Scala Times Issue #505

    Getting started with ZIO, part 3. Laminar & Scala.js Full Stack Demo & More. Harness the power of Web Components with Scala and Laminar. Rendezvous Benchmark Analysis: When Threads (Don't) Meet. How scala-cli Shines in Automation.


  25. Scala Times Issue #504

    Custom logic from Accept header with Tapir. Using Nix to Develop and Package a Scala Project. Scala Center Activity Report for 2023 Q3. How to convert an Option to an Either in Scala. Free support for Scala 2 to 3 migration.


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