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April 9th, 2020, ISSUE 321

READING

Tapir codecs get an update

Codecs are now simpler, composable, and extended with more supported types!
Adam Warski (@adamwarski)
user-land compiler warnings in Scala, part 2

Using meta-annotation technique, we were able to extend apiStatus so we can tag APIs using a custom status annotation.
Eugene Yokota (@eed3si9n)
Data processing with Akka Actors: Part I

In this article, I introduced the problem that we are trying to solve and the technology stack that is going to be used. Also, I hope you gained some basic understanding of how to implement actors and design an Actor System.
Aleksandar Skrbic (@skrbic_a)
Moving From Kotlin + Spring Reactor + Arrow to Scala + ZIO

The Scala + ZIO solution is easier to test, easier to compose, and easier to understand, and can be quickly tweaked to generate new variations for changing requirements.
Adrian Filip (@realAdrianFilip)
A functional comparer

The main purpose of the Comparer package is the elegance and the ease of composition of comparers and the provision of out-of-the-box comparisons for just about every situation.
Robin Hillyard
What's Ap?

We’ll delve into the original paper in which they were introduced, converting the Haskell code to modern Scala, both custom code and using Cats, Cats Effect and Zio. Finally, we’ll look at an efficient implementation of blending two images using Applicative programming.
Justin Heyes-Jones (@justinhj)

PRESENTATIONS

Data Juggling - Part 10 - Tame Your Twelve-Factor App's Config (Lightbend Config - Part 2)

In this video we will learn about the many ways to read the configuration settings for your applications with libraries like lightbend config and pureconfig with the refined integration. We will also have a crash course for the HOCON format.
DevInsideYou (@DevInsideYou)
Data Juggling - Part 11 - Getting Started with Squants

In this video we will talk about Squants - The Scala API for Quantities, Units of Measurement And Dimensional Analysis.
DevInsideYou (@DevInsideYou)

EVENTS

Scalar Online, May 15th (CFP)

Send your proposal! Call for papers ends 14th of April
SoftwareMill (@scalarconf)
ScalaUA Remote Conference, April 3th-4th

Wholesale 10+ tickets are available till 2020.04.02.
ScalaUA (@ScalaUA_Conf)
Scala Love Remote Conference, April 18th

CFP is open now!
Scala Love (@scala_love)
Effective Scala Remote Workshop, April 21st-22nd

Bill Venners and Frank Sommers from Artima will be teaching a hands-on Effective Scala training course April 21-24 over Zoom. The course will be held 9AM to 12:45PM in the US/Pacific time zone. We will meet for a half-day on each of four consecutive days. Enter coupon code SCALATIMESAPR20 for a 10% discount.
Artima, Inc (@ArtimaInc)
Functional Design with John de Goes, April 27th-28th

Use promo code SCALATIMES10 to get a special 10% discount for Scala Times readers!
Ziverge (@zivergetech)
Scala Swarm, June 18th-23rd, Porto, Portugal

Ticket sale is now open, come quick and grab your ticket to this unique event!
ScalaSwarm (@ScalaSwarmConf)
[cancelled] flatMap(Oslo), May 14th-15th, Oslo, Norway

The event has been cancelled due to the COVID-19 virus.
flatMap(Oslo) (@flatmaposlo)
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)

RELEASES

zio-akka-quickstart

A Giter8 template for a basic Scala application build using ZIO, Akka HTTP and Slick!

VARIA

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