A free, once-weekly Scala news flash. Easy to unsubscribe. Goes out every Thursday.
September 22nd, 2022, ISSUE 447

READING

Migrating from Akka HTTP to tapir

Learn how to gradually switch and what additional benefits you can get when chosing Tapir over Akka HTTP.
Adam Warski (@adamwarski)
How to make Akka serialization bulletproof

Akka Serialization Helper is the right tool to make Akka serialization bulletproof by catching possible runtime exceptions during compilation. It is free to use and easy to configure.
Łukasz Kontowski
Manage library breaking changes with Scalafix

Use Scalafix rules to automatically refactor an original code by choosing the updates to apply.
Ali-Firat Kilic (@_AliFirat)
Typelevel Native

We recently published several major Typelevel projects for the Scala Native platform, most notably Cats Effect, FS2, and http4s. This blog post explores what this new platform means for the Typelevel ecosystem as well as how it works under-the-hood.
Arman Bilge (@armanbilge)
Akka Fork FUD

Can Lightbend sue potential fork maintainers? Is Akka fork a maintainable project, or maybe it's too complex to handle? These and other questions are explored by Alex in his blogpost.
Alexandru Nedelcu (@alexelcu)

VIDEOS

SBT in Scala (part 1)

This video is an introduction to SBT, the Scala project builder tool. We'll set up SBT and a Scala project from scratch without an IDE, we'll learn how to run a main application directly from the SBT console, we'll install third-party libraries and we'll set up and run tests in our application.
Daniel Ciocîrlan (@rockthejvm)
Scala Native Internals Overview

Scala Native is an extension to the Scala compiler that allows Scala to be run without JVM, natively. In this video, Wojciech Mazur will give a thorough overview of how it works.
Wojciech Mazur (@Wojciech_Maz)

EVENTS

Migrating from Akka to ZIO Panel Discussion, September 23rd, Online

Join the panel discussion to hear from the industry leaders (John De Goes, Adam Fraser, Ivan Subotic, Jakub Czuchnowski, Jan Ypma, Kit Langton, and more) discussing ZIO as an alternative solution to Akka, hear successful migration stories as well as learn about key features making ZIO more cloud efficient, robust and resilient for modern application development.
Ziverge (@zivergetech)
Functional Scala 2022 CFP

Apply before October 15th.
Ziverge (@zivergetech)
ScalaCon 2022 CFP, October 4th-5th, virtual event

ScalaCon is looking for talks covering different areas of Scala. Talk slots are around 40-45 minutes in length with 5 minutes of Q&A time. CFP closes at May 12, 2022 16:50 UTC!
ScalaCon (@scalacon)
ZIO Hackathon, October 27th-28th, New York, USA & Online

We will share and learn about ZIO and related projects; chat about functional programming, functional Scala, and much more; work on fun projects; and get to know one another. No prior background knowledge of ZIO is assumed.
Ziverge (@zivergetech)
Functional Scala 2022, December 1st-2nd, London

Use our link and get a 10% discount for Scala Times readers!
Ziverge (@zivergetech)

RELEASES

Scala 2.12.17

Aids migration to 2.13, eases cross-compilation with Scala 3, and more changes.
Scala contributors
kittens 3.0.0

Scala 3 support has finally landed!
kittens contributors
Slick 3.4.x is here!

Slick is no longer led by Lightbend. It’s entirely community-maintained.
Slick contributors





  1. Scala Times Issue #466

    Pub/Sub with Scala. 6 Tips for Scala Adoption. Implicit parameters when to use them? Part 2. Call for Scala GSoC 2023 projects!. Scalar 2023, March 23rd-24th, Warsaw, Poland.


  2. Scala Times Issue #465

    Deploy http4s on your domain with fly.io. Early adventures in ZIO land. Implicit parameters when to use them? Part 1. Tour of Scala. Sttp4: improving the developer experience.


  3. Scala Times Issue #464

    Scala CLI Tutorial: Creating a CLI Sudoku Solver. Scalar 2023, March 23rd-24th, Warsaw, Poland. NEScala 2023 Call to Action.


  4. Scala Times Issue #463

    Universally Unique Sortable Identifier - ULID. Compile time validation using inline modifier in Scala 3. Thank you for taking part in Advent of Code 2022!. Nix Flake for Scala - a Nix Introduction, Overview and Demo. Scalar 2023, March 23rd-24th, Warsaw, Poland.


  5. Scala Times Issue #462

    Support Scala Center. Dancing with ZIO. Scalar 2023, March 23rd-24th, Warsaw, Poland. NEScala 2023 Call to Action. CFP: ScalaMatsuri (Online event, April 15th-16th 2023).


  6. Scala Times Issue #461

    Python and ZIO crushed my egotism. Fast Scala 3 parsing with tree-sitter. Scalar 2023, March 23rd-24th, Warsaw, Poland. NEScala 2023 Call to Action. CFP: ScalaMatsuri (Online event, April 15th-16th 2023).


  7. Scala Times Issue #460

    Fabric: A New JSON Library. Benchmarking Kafka vs Akka Brokerless Pub/Sub. Scala Developer Survey 2022 Results. State of Scala survey 2022. Integration testing using docker containers in Scala.


  8. Scala Times Issue #459

    IntelliJ Scala Plugin 2022.3. Scala Center Advent of Code. Use Typescript libraries with Scala.js! - ScalablyTyped. The fastest and safest JSON parser and serializer for Scala. Lichess on Scala 3.


  9. Scala Times Issue #458

    Grenoble Scala User Group (France). Getting started with Scala.js, Laminar and ScalablyTyped. Finagle Tutorial: Twitter's Scala RPC Library. Scalar 2023, March 23rd-24th, Warsaw, Poland. NEScala 2023 Call to Action.


  10. Scala Times Issue #457

    Native Config Lands in ZIO 2.0 . Automatic parallelisation of for-comprehensions in Scala 3. The Journey of a Dotty Diagnostic. The Magic of Lazy Lists. Scala 3: the missing compiler plugin.


  11. Scala Times Issue #456

    Scala Toolkit makes Scala powerful straight out of the box. Scala 3 migration: 7 benefits that outweigh the risks. Google Summer of Code 2022: How It Was. Things that are things, but not other things. Function reuse is just wishful thinking.


  12. Scala Times Issue #455

    Integrating Java APIs with Cats Effect. Speed up ZIOs with memoization. Archive your toots to Hugo. Software Engineering Radio: on Scala and Tapir . Top 10 Skills to Learn to Be a Scala Developer.


  13. Scala Times Issue #454

    I ❤️ Scala's Community. Immutable Collections should be Your Default. Data Transformations in Scala with Gallia: Version 0.4.0 Is Out. Quine 1.4.0: Scale, Stability, Supernode Mitigation. Functional Scala 2022, December 1st-2nd, London.


  14. Scala Times Issue #453

    Scala for Game Server Development. Pekko accepted into the Apache Incubator. On Scala 3's Optional Braces. ZIO HTTP Tutorial, Part 2 - Security, CORS, CSRF, Authentication, Websockets. Where to find a Remote Scala Job?.


  15. Scala Times Issue #452

    The case against Effect Systems (e.g., the IO data type). Cut the Technobabble. Build Web Apps with ZIO 2.0, October 17th-19th. ZIO Hackathon, October 27th-28th, New York, USA & Online. Functional Scala 2022, December 1st-2nd, London.


  16. Scala Times Issue #451

    Support for XML request responses in sttp and tapir. Scala Center Activity Report for 2022 Q3. SBT in Scala (part 3). ZIO API Design Techniques. Migrating From Akka to ZIO Panel Discussion.


  17. Scala Times Issue #450

    ZIO Hackathon, October 27th-28th, New York, USA & Online. Functional Scala 2022, December 1st-2nd, London. A tapir looms in the distance. State of Scala 2022 by ScalaCenter and VirtusLab. The Trouble with Checked Exceptions: Part 2.


  18. Scala Times Issue #449

    ZIO Hackathon, October 27th-28th, New York, USA & Online. Functional Scala 2022, December 1st-2nd, London. A tapir looms in the distance. State of Scala 2022 by ScalaCenter and VirtusLab. The Trouble with Checked Exceptions: Part 2.


  19. Scala Times Issue #448

    From Akka to ZIO. ZIO Hackathon, October 27th-28th, New York, USA & Online. Functional Scala 2022, December 1st-2nd, London. Akka fork applying for Apache Project.


  20. Scala Times Issue #447

    Migrating from Akka HTTP to tapir. How to make Akka serialization bulletproof. Manage library breaking changes with Scalafix. Akka Fork FUD. SBT in Scala (part 1).


  21. Scala Times Issue #446

    Reconciling Spark APIs for Scala. Scripting with Scala. ING Contact Center 2.0  -  Creating Resilient APIs. Functional event sourcing with cats-effect. ZIO Streams Part 1 (The Channel Type).


  22. Scala Times Issue #445

    Containers Redux - Capturing Type Class information for myriad types. Why We Are Changing the License for Akka. ZIO Streams, Part 3: A Bigger Example. SIP-44 - FEWER BRACES in Scala3. Functional Scala 2022 CFP.


  23. Scala Times Issue #444

    Learn Scala 3 The Fast Way!. Implementing Raft using Project Loom. How to prevent Scala 3 compiler regressions with Community Build. Scala is Improving. Tooling Talks - Scaladoc from Scratch.


  24. Scala Times Issue #443

    Implementing Raft using a functional effect system. Reactive Event Sourcing benchmarks, part 1: PostgreSQL. Functional Scala 2022 CFP. ScalaCon 2022 CFP, October 4th-5th, virtual event. ZIO Hackathon, October 27th-28th, New York, USA & Online.


  25. Scala Times Issue #442

    Selection functions are interesting notion with tricky implementation. Tagless final  -  from a different perspective. Long-term compatibility plans for Scala 3. Static Dynamics - Expression definable datatypes in Scala. Top Link of July: Foldable and Traverse with Scala and Cats.


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.