A free, once-weekly Scala news flash. Easy to unsubscribe. Goes out every Thursday.
May 4th, 2023, ISSUE 480

READING

More than just HelloWorld.json in sttp & upickle

A detailed recipe for integrating upickle with sttp, having advanced support for ADTs and snake_case.
Adam Rybicki (@Flsh86)
Single-File JVM Apps: Rapid Development

In the given context, JBang and Scala-CLI offer more than just scripting for Java, Scala, Groovy, or Kotlin. They enable quick starts with minimal setup, download dependencies from Maven, install the required JDK version, and work with single-file JVM apps or single-module projects.
Marcin Szałomski (@baldram)
Single-File JVM Apps Pt. 2: AWS Lambda Simplified

The article demonstrates how the tools discussed in the previous article have potential applications in the industry beyond education, prototyping, and experimentation.
Marcin Szałomski (@baldram)
Mastering SBT: Tips and Tricks for Using Not-So-Common Features

Learn about command aliases, nested build structure, custom tasks, templates, integration tests, custom profile, and OnLoad operations.
Yadu Krishnan (@yadukrishnank)
Accumulate errors in Scala with typelevel cats

Leverage parMapN to accumulate errors without reaching for the Validated type.
Julien Truffaut (@JulienTruffaut)

VIDEOS

Scala 3.3 LTS - The Big Deal Release?

There has never been a Long Term Support (LTS) Scala release. Neither for Scala 3 nor for Scala 2. This is about to change! Let's see what's new in Scala 3.3.0 - the first release in the Scala LTS line!
DevInsideYou (@DevInsideYou)

EVENTS

Art of Scala, May 25th, Warsaw

It's a response to the Scala engineers’ needs for professional development and allows attendees to meet with peers for knowledge exchange purposes—a conference organized by engineers for engineers.
Art of Scala
Why you should join us at Scala Days Seattle, June 5th - 7th

At Scala Days, you can explore the latest technology updates, interact with companies who use and help to improve Scala, learn new skills from some of the best Scala practitioners, and meet other enthusiastic Scala developers.
Xebia (@Xebia)
10% discount for the Scala 3 Metaprogramming (ALL-NEW) course for our readers!

Use code SCALATIMES10off and enjoy the course!
Ziverge (@zivergetech)
10% discount for LambdaConf, Sept 16th-19th, Boulder, Colorado

LambdaConf returns in its first edition after the pandemic, reimagined as a multi-disciplinary developer conference featuring thought-provoking, entertaining, and mind-blowing talks and workshops that will forever change the way you write software.
Ziverge (@zivergetech)
Call For Proposals - LambdaConf 2023

Send your talk and join LambdaConf!
Ziverge (@zivergetech)
Call for Volunteers - Lambda Conf 2023

Become part of the team!
Ziverge (@zivergetech)
10% discount for Functional Scala, Nov 30th - Dec 1st, London

Use code ScalaTimesFS2023 and get our exclusive discount!
Ziverge (@zivergetech)

RELEASES

sttp-openai

A strongly typed functional Scala wrapper for the OpenAI API.
SoftwareMill (@softwaremill)
sealed-monad 1.2.0

Scala library for business logic oriented, for-comprehension-style error handling.
sealed-monad contributors
sbt 1.9.0-RC1

POM consistency of sbt plugin publishing. Sbt new, a text-based adventure, releaseNotesURL setting, and deprecation of IntegrationTest configuration.
sbt contributors
ff4s

A purely functional web frontend framework for Scala.js.
Christoph Bunte

VARIA

Scala Times banners?

Want one? Click here
THE INTERNET
Scala Times stickers?

Want one? Let us know or tweet @scalatimes.
THE INTERNET

POWERED BY SOFTWAREMILL


We've been delivering software projects remotely since 2009. And that's only one of the reasons why we might be the best fit to consult / scale / rescue your project! #WeAreReady https://softwaremill.com/services/





  1. Scala Times Issue #500

    IntelliJScala @ Scala Days 2023 Madrid. OOP classes vs Higher-order Functions (HOFs). Work-in-Progress Scala 3 Specification. 10% discount for Functional Scala, Nov 30th - Dec 1st, London. LambdaConf 2024, May 4th-10th, Estes Park, Colorado.

  2. Scala Times Issue #499

    State of Scala 2023 by ScalaCenter and VirtusLab. JDK 21 LTS - All Features Explained!. The Scala Center Fundraising Campaign. So, What's So Special About The Mill Scala Build Tool?. Kyo: Toolkit for Scala Development.

  3. Scala Times Issue #498

    Generating a Rust client library for ZIO Http endpoints. Why Scala Dominates Data Engineering. CFP: NEScala 2023. London Scala Talks, Sept 20th. 10% discount for Functional Scala, Nov 30th - Dec 1st, London.

  4. Scala Times Issue #497

    Compare Task Processing Approaches in Scala. Temporal Workflows with ZIO: Introduction. REST APIs Using Play Framework and Scala: A Comprehensive Guide. Automating Data Transformations with ducktape. CFP: NEScala 2023.

  5. Scala Times Issue #496

    Lightbend transfers ownership of sbt to the Scala Center. Type safety with Iron. Scala Days Madrid, Sept 11th-12th. Performance Optimization on the JVM, Sept 11th-15th, Online. London Scala Talks, Sept 20th.

  6. Scala Times Issue #495

    Slack Bot in Scala and 12 Ways to Run It. Cost of boxing. Diving into ZIO Test 'Aspects'. Contribution Equals Impact. Do your Values align with FP Values?.

  7. Scala Times Issue #494

    Cats Effect vs ZIO. Principles of developing applications in Scala. The Scala Week in Madrid. Scala Days Madrid, Sept 11th-12th. Performance Optimization on the JVM, Sept 11th-15th, Online.

  8. Scala Times Issue #493

    Native app development with sttp and Scala Toolkit. ZIO Kafka with Jules & Erik. ScalaWAW #30, Aug 17th, Warsaw. Scala Days Madrid, Sept 11th-12th. Performance Optimization on the JVM, Sept 11th-15th, Online.

  9. Scala Times Issue #492

    Go-like channels in Scala: receive, send, and default clauses. IntelliJ Scala Plugin 2023.2 Is Out!. Scala Days Madrid, Sept 11th-12th. Performance Optimization on the JVM, Sept 11th-15th, Online. 10% discount for Functional Scala, Nov 30th - Dec 1st, London.

  10. Scala Times Issue #491

    Scala Websites Improvements. Signature polymorphic methods in Scala. Scala Center Roadmap for 2023 Q3. Zymposium - ZIO Maelstrom. Zymposium - Partial Functions & Future ZIO HTTP Features.

  11. Scala Times Issue #490

    How to implement streaming microservices with ZIO 2 and Kafka. Automation tools for Scala development. Introduction to optics in Scala. Comprehensive Data Validation in Scala. ZIO 2 Runtime Improvements .

  12. Scala Times Issue #489

    6 Common Misconceptions Around Akka-HTTP / Pekko-HTTP. "No More Orphans" in Practice. Interesting patterns to consume ZIO Streams. Why I keep choosing ZIO!. Breaking framework chains with vanilla Scala.

  13. Scala Times Issue #488

    Two types of futures. Chatbot Showdown: Typelevel Scala Edition. An intro to Flow Fields in Scala. Mastering ScalaTest - Exploring Tagging, Retry, Runner and More. Top Scala open source projects and contributors.

  14. Scala Times Issue #487

    5 Scala Libraries That Will Make Your Life Easier. Post-Conference Notes on Scala Days 2023 Seattle. Dependency Injection with Cats-effect Resource Monad. Developer Ecosystem Survey 2023. ScalaWAW #28, June 28th, Warsaw.

  15. Scala Times Issue #486

    Getting started with ZIO, part 1. Introducing ZIO Flow. The Business of the Scala Programming Language. ScalaWAW #28, June 28th, Warsaw. 10% discount for LambdaConf, Sept 16th-19th, Estes Park, Colorado.

  16. Scala Times Issue #485

    Functional Declarative Design. How to use Large Language Models for Scala documentation. Scala 3 Significant Indentation Woes: Sample. Iron updates: turning opaque types into value objects. Why we used Quill in RealWorld project?.

  17. Scala Times Issue #484

    Google Summer of Code 2023 Timeline. Scala 3 Enums. On the road to Scala 3. Encoding Base58: Understanding and implementing in Scala. Teach Your Web API To Speak Loud And Clear CLI!.

  18. Scala Times Issue #483

    A Splendid Scala Journey. From spring boot to ZIO. Two More Old Cents on Scala 3 Migration. Functional Design with Scala 3, May 29th-30th. 10% discount for LambdaConf, Sept 16th-19th, Boulder, Colorado.

  19. Scala Times Issue #482

    The Scala 3 compatibility story. The RedMonk Programming Language Rankings: January 2023. Akka: Enabling the Cloud to Edge Continuum. Writing a GitHub Action with Scala.js. Chain of responsability with Scala partial functions.

  20. Scala Times Issue #481

    Scala and Kotlin Under One Roof. Intermediate's guide to derivations in Scala: Magnolia. Replacing sbt with scala-cli in a simple project. Scala Server Security with Http4s: CORS and CSRF. Art of Scala, May 25th, Warsaw.

  21. Scala Times Issue #480

    More than just HelloWorld.json in sttp & upickle. Single-File JVM Apps: Rapid Development. Single-File JVM Apps Pt. 2: AWS Lambda Simplified. Mastering SBT: Tips and Tricks for Using Not-So-Common Features. Accumulate errors in Scala with typelevel cats.

  22. Scala Times Issue #479

    Kotlin Coroutines to Cats-Effect. Build your vocabulary with Scala affixes. Scala.js Interoperability with TypeScript/JavaScript. Introduction to Scala Development using VS Code. Call For Proposals - ZIO WORLD 2023 .

  23. Scala Times Issue #478

    Concurrency with Cats Effect. Using Vulcan Codecs with Kafka Java APIs. Scala Center Activity Report for 2023 Q1. Are you sure your Scala 3 opaque types don’t instantiate?. Underrated Scala Features and Hidden Gems in the Standard Library.

  24. Scala Times Issue #477

    Good practices for schema evolution with Protobuf using ScalaPB and fs2grpc. New Scala Build Tool. March 2023 - Scala Tooling Summit. Conferences are BACK! (Scalar Conf 2023 recap). Direct Style Scala.

  25. Scala Times Issue #476

    ZIO SQL: Type-safe SQL for ZIO applications. Go-like channels using project Loom and Scala. Functional Error Handling in Scala. Top 10 pattern matching tips in Scala. Programming in Scala: Carbon Footprint.

Organizing an event?
Promote it with
Scala Times.
The Scala Times reader?
Get a banner!
Got a tip?Send it in!
Follow us onTwitter.
Curated bySoftwareMill.
We arehiring.
Andtaking on projects.