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February 5th, 2021, ISSUE 364

READING

Why we need yet another Akka Persistence plugin?

The story behind Akka-Persistence-Postgres part 1: partitioned journals.
Marcin Kubala (@marcin_kubala)
Match Types in Scala 3

In Scala 3, we can define a type member which can take different forms - i.e. reduce to different concrete types - depending on the type argument we’re passing.
Daniel Ciocîrlan (@rockthejvm)
A Metals Retrospective (Part 1) · Metals

At the end of 2020 the Metals team sent out a survey to gather input from our users in hopes to get a better picture of who you are, what you want out of Metals, and any other useful feedback you may have wanted to provide.
Chris Kipp (@ckipp01)
Functional Design

This is a long due post following the talks given recently at Dawscon, CodeMesh, and Scala Toronto about Functional Design.
Francis Toth (@francistoth)
Making the Spark DataFrame composition type safe(r)

Can we use the power of the Scala type system to introduce some level of type safety to the untyped DataFrame API while simultaneously preserving other benefits this API provides?
Iaroslav Zeigerman (@izeigerman)
Type driven API development using Scala and Tapir

In a previous post, I have discussed at length why, in order to grow a mature API driven product, we need a mechanism to keep API documentation and implementations in sync. It’s now time for me to illustrate how such a mechanism might look like in the backend; so let’s get our hands dirty and write some code!
Andrea Fiore (@a_fiore)

EVENTS

Why Scala 3 will be awesome, 11th February, online event (GMT)

With Scala 3 right around the corner, now is the perfect time to discover exciting new features, that will simplify or reinvent how we write Scala applications. In this talk, I will give you a taste of the future.
Piotr Gołębiewski
Scala Love in the City, 13th February, Online Event

Come, come, come! Have a wonderful time together voicing solutions to problems as well as discussing education and Scala careers in the new millennium.
Scala Love (@scala_love)
Lambda Days 2021, 16th - 19th February, Virtual Event

Don't forget to check the Diversity Scheme - we have a pool of tickets to be distributed among participants from groups underrepresented in IT.
LambdaDays (@LambdaDays)
Unlock the Secrets of Scala 3 Macros, 24th February, online event (EST)

If we look deeper into Dotty Mirrors and inline, we discover an incredibly deep feature-set that elegantly solves a plethora of meta-programming problems.
Alexander Ioffe (@deusaquilus)
ZIO World, 11th March, Online Event

Join ZIO users and contributors for the inaugural ZIO World, which reveals ZIO 2.0, providing inspiration and new opportunities to create the most powerful reactive applications on the JVM. FREE of charge for all ZIO Contributors and Users.
Ziverge (@zivergetech)

RELEASES

modux 1.2.2

Modux is a simple and lightweight microservice server for Scala inspired on Lagom Framework. New version brings a lot of major updates!
Joaquin Velazquez
orchestrator4s

Simple library to orchestrate yours applications easily.
Joaquin Velazquez
graphql4s

Another GraphQL interpreter for Scala based on specification graphql/draft.
Joaquin Velazquez
Programming in Scala, Fifth Edition

PrePrint PDF update of Programming in Scala is now available. Use code SCALATIMESPINS5 for 15% off. Offer expires 2/28/2021.
Artima, Inc. (@ArtimaInc)





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