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April 25th, 2019, ISSUE 271


ZIO & Cats Effect: A Match Made in Heaven

ZIO is awesome for many reasons: Better MTL / Tagless-Final, Resource-Safety for Mortals, Guaranteed Finalizers, Stable Shifting, Lossless Errors, Deadlock-Free Async, Precise Future Interop, Blocking IO, Cost-Free Effects, and more!
John A De Goes (@jdegoes)
Concurrency is complicated

There are many other concurrency challenges that we can face, but it’s important to understand the reasons and the causes.
Wiem Zine (@WiemZin)
An introduction to Law Testing in Scala

Law testing allows you to reason about your data-types and functions in a mathematical and concise way and provides a totally new paradigm for testing your code!
Dor Sever
Celebrating 10 Years of Akka

Check out this 10-Year Akkaversary Magazine—a commemorative guide of white papers, blog posts, and articles that have shaped the Akka journey.
Lightbend (@lightbend)
Alphabet Soup: Type-level transformations

Reducing boilerplate is always fun, learn how you can automatically convert between similar types without writing tedious field-to-field converters.
James Phillips


Crash Course - Property Based Testing with ScalaCheck

In this video we will learn about property based testing, which is an alternative to example based testing.
DevInsideYou (@DevInsideYou)


ScaLATAM, Montevideo, Uruguay, May 2nd - 3rd

Don't miss the first Scala Conference in Latin America. Use promo code "scalatimes" to get 25% discount for our readers!
flatMap(Oslo), Oslo, Norway, May 8th - 9th

Use promo code SCALATIMES for a discount for our readers!
flatMap(Oslo) (@flatmaposlo)
Reactive Horizons, Orlando, Florida, May 31st

This conference is a unique opportunity to learn about top trending topics from today's Fast Data experts!
Reactive Horizons
CFP for LX Scala & Reactive, Lisbon, Portugal, July 4th - 5th

Don't miss the CFP deadline which is May 1st!
LX Scala & Reactive (@LX_Scala)
CFP for Lambda World, Cádiz, Spain, October 17th - 18th

Deadline for submissions is June 1st.
Lambda World (@lambda_world)
CFP for Scala Italy, Bologna, Italy, September 20th - 21st

Submit your proposal before May 5th.
Scala Italy (@ScalaItaly)


Scala Love Episode 47 with Raúl Raja Martínez

Enjoy this conversation with CTO & Co-Founder at 47 Degrees.
Scala Love (@scala_love)


http4s v0.20.0

Typeful, functional, streaming HTTP for Scala... Version 0.20 brings Scala 2.13 compatibility, EOL of 0.18, some breaking changes, enhancements (mediaType String context macro for validating literals) and bugfixes.
http4s contributors
Scala Native 0.3.9

An impressive set of improvements and fixes.
Scala Native contributors
Mu v0.18.0

Mu is a purely functional library for building RPC endpoint based services with support for RPC and HTTP/2.
Mu contributors
Cats 2.0.0-M1

A milestone release, maintains binary compatibility on cats-kernel, cats-core and cats-free with Cats 1.x.x.
Cats contributors
Akka Persistence Couchbase

The Akka Persistence Couchbase plugin allows for using Couchbase 5.1 and newer as a backend for Akka Persistence and Akka Persistence Query.
Akka Persistence Couchbase contributors


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