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May 27th, 2021, ISSUE 380

READING

Scala 3 Hello, world!

The final version of Scala 3, the single largest revision to language in more than a decade, is here, and we’re more than excited!
Maria Wąchal (@wachal_maria)
Scala 3 macros tips & tricks

A compilation of useful lessons learned during migration of various macros from the quicklens, tapir, and macwire libraries.
Adam Warski (@adamwarski)
Build your own refinement types in Scala 3

Learn how to fully leverage goodies from the scala.compiletime package.
Michał Sitko (@michal_sitko)
How To Implement Streaming Microservices Using ZIO and Kafka

Through this blog post, I've explained what ZIO is and how to use it in combination with ZIO Streams to write purely functional event-driven microservices.
Aleksandar Skrbic (@skrbic_a)
How to successfully manage a ZIO Fiber’s lifecycle

When managing the application’s fibers there are inevitable edge cases each ZIO user has to be familiar with and be comfortable with.
Natan Silnitsky (@NSilnitsky)
Exploring ZIO - Part II - ZStream and modules

The second part continues with ZStream integration, adding persistence to the example, and a real REST endpoint.
Jos Dirksen (@josdirksen)
Paying homage to the Compall-Michael pattern, and anticipating Scala 3 Opaque Types

How to deal with "compile-time wrapper types".
Neil J. L. Benn (@njlbenn)

EVENTS

Scala 3 for Scala 2 Developers (SF - Bay Area Edition), Jun 21st - 25th

In this course, developers who are already familiar with Scala 2.x will get a high-speed introduction to all the changes coming in Scala 3, including semantic changes, syntactic changes, new features, and dropped features. Use our link to get a 20% discount for Scala Times readers!
John A. De Goes (@jdegoes)
Functional Effects with ZIO 2.0 (SF Bay Area Edition), Jul 26th - Jul 30th

In this course, Scala developers will learn how to solve complex problems in asynchronous, concurrent programming using the ZIO library. Use our link to get a 20% discount for Scala Times readers!
John A. De Goes (@jdegoes)
Advanced ZIO (SF - Bay Area Edition), Aug 30th - Sep 3rd

In this course, developers will explore the edges and corners of the ZIO library, taking a close look at the fine-grained interruption, custom concurrency structures, streams, application configuring and tuning, and metrics and monitoring. Use our link to get a 20% discount for Scala Times readers!
John A. De Goes (@jdegoes)
Functional Design (SF - Bay Area Edition), Sep 27th - Oct 1st

In this course, developers will learn how to write simple functional solutions to everyday business problems, without jargon and without type classes. Use our link to get a 20% discount for Scala Times readers!
John A. De Goes (@jdegoes)
Functional Scala Fundamentals (SF - Bay Area Edition), Oct 17th - 22nd

In this course, developers will learn the foundations of functional Scala, including language features that are unique to functional Scala, core concepts in functional programming, and proven techniques for developing robust and powerful applications in functional Scala. Use our link to get a 20% discount for Scala Times readers!
John A. De Goes (@jdegoes)
Build Web Servers with ZIO (SF - Bay Area Edition), Nov 15th - 19th

In this course, developers will use ZIO and best-in-breed libraries to rapidly construct web applications that are scalable; easy to test, refactor, and maintain; and which never leak resources or deadlock. Use our link to get a 20% discount for Scala Times readers!
John A. De Goes (@jdegoes)
Functional Scala, Dec 2nd - 3rd

Functional Scala 2021 returns for another year of great talks, familiar and fresh spaces, and positive energy around the power of functional Scala for delivering compelling solutions to the toughest technology problems. Use promo code SCALATIMES10 for a discount for our readers!
Functional Scala (@FunScala2021)

RELEASES

ScalaJack

Flexible object serializer for JSON, YAML, and other formats now available for Scala 3, implemented with macros for high performance and support for Scala 3’s enum, intersection, union, and opaque types.
Greg Zoller
circe 0.14.0

With a new JSON pointer module, bugfixes, and Scala 3 compatibility.
circe contributors
Akka gRPC 2.0.0 Released

This version of Akka gRPC updates from ScalaPB 0.10.x to 0.11.x, which is a breaking change for Scala users.
Akka gRPC contributors





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