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May 7th, 2020, ISSUE 325


Scala Start Page

Finally, a tailored website with all the resources needed for a proper start with Scala!
SoftwareMill (@softwaremill)
Starting with Scala 3 macros: a short tutorial

See how the flagship "principled metaprogramming" feature of Scala 3 works in action.
Adam Warski (@adamwarski)
zio-properties: A ZIO alternative to Spring Properties

I have built a library called zio-properties (on top of zio-config and magnolia) that checks multiple sources and retrieves properties based on a standard resolution order.
Adrian Filip (@realAdrianFilip)
Implementing Authentication on Play Framework

User authentication is a sensitive topic: everyone expects to work flawlessly, and if there’s any security issue it can easily take the full company down.
Pedro Rijo (@pedrorijo91)
Lunatech and our commitment to the Scala Center

In the coming months, we’ll be keeping you updated on the work that we’re doing to continually support the Scala Center. We’re excited for the upcoming release of Scala 3 and to continually see the Scala tooling ecosystem improve.
Chris Kipp
Scala Native Next Steps

Read the summary of short-term, mid-term, and long-term goals.
Ergys Dona (@ergysdona)
Building the Death Star with ZIO Stream

Building space stations has never been easier. Using a few ZStream operations - zip, map, mapConcat, group, collect, via, take and runCollect - we managed to build a space station the size of a moon, combining different sources, dealing delays and unexpected random events, easily making them work together.
Juliano Alves (@vonjuliano)
Import Suggestions in Scala 3

This article shows these improvements in action in concrete examples of code.
Julien Richard-Foy (@julienrf)
Effect Tracking Is Commercially Worthless

There's zero value in pursuing the illusive "effect tracking"!
John A. De Goes (@jdegoes)
Thoughts on Recent Online-Only Conferences

Online-only conferences will be the new normal, and they can be as good, or even better in some regards, than the traditional in-person form.
Adam Rosien (@arosien)
cached compilation for sbt

An exciting update, allowing a very significant build time speedup!
Eugene Yokota (@eed3si9n)


Circe - Part 1 - Introduction to working with #JSON in #Scala

This video is an introduction to working with JSON in a statically typed language like Scala with a prominent library called circe which is powered by Cats.
DevInsideYou (@DevInsideYou)


Scalar Online, May 15th Agenda is live!)

Agenda is live now! Get ready for Scalar!
SoftwareMill (@scalarconf)
Scala Swarm, June 18th-23rd, Porto, Portugal

Ticket sale is now open, come quick and grab your ticket to this unique event!
ScalaSwarm (@ScalaSwarmConf)
Scalar Workshops, October 8th-10th, Warsaw, Poland

Get ready for the workshop-driven FP event in Poland!
SoftwareMill (@scalarconf)
Functional Scala, December 3th-4th, London

Learn the critical topics you need to excel as a Scala developer, and celebrate the Scala programming language and community.
Ziverge (@zivergetech)
Virtual Scala in the City Conference, May 28th

Call for Speakers is open! Scala in the City Conference is for anyone who is passionate about learning and sharing their Scala and Functional programming knowledge.
Signify Technology (@Signify_Tech)


sort-imports 0.5.0

Now with smarter than "just ascii" sorting!
sort-imports contributors
ZIO for IntelliJ

Lots of new features and bugfixes in this release!
ZIO plugin contributors
onnx-scala 0.3.0

An ONNX (Open Neural Network eXchange) API, Code Generator and Backend(s) for Typeful, Functional Deep Learning in Scala. Featuring a new backend based on ONNX Runtime.
Alex Merritt
Dotty 0.24.0-RC1

2.13.2 standard library, better error messages and more.
Dotty contributors
Alpakka 2.0 Released

This release brings some serious updates to many connectors, make sure to check it out!
Alpakka contributors (@akkateam)
Akka Persistence Cassandra 1.0

Major upgrade of the Cassandra driver, Now built on top of Alpakka Cassandra, Shared database connection pool between all parts of the plugin, and many more updates.
Akka Persistence Cassandra contributors
Metals v0.9.0 - Lithium

Metals is a language server for Scala that works with VS Code, Vim, Emacs, Sublime Text, Atom and Eclipse. Main focus is introducing support for Scala 3 starting with versions 0.23.0 and 0.24.0-RC1. We also added support for Scala 2.13.2 and a number of other useful improvements.
metals contributors


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