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March 5th, 2020, ISSUE 10313

READING

HList

The biggest takeaways of this exercise are first that we can get the same flexibility at the value and the type level, and secondly that thinking about types as functions can be a breakthrough when you tackle Type programming.
Francis Toth (@francistoth)
How to publish a Scala library in GitHub

How to use GitHub Packages. A step-by-step tutorial.
Manuel Rodríguez
Announcing Cats STM 0.7.0

A release with several significant bug fixes and improvements to the fairness of retry scheduling.
Tim Spence
Baking Peixinhos da Horta with ING’s Baker Library

A library that reduces the effort to orchestrate (micro)service-based process flows.
João Esperancinha (@joaofse)

PRESENTATIONS

Data Juggling - Part 7 - Applicative vs Monadic Styles (Functional Error Handling - Part 2)

This video is a deep dive into Applicative Functors, Apply and Semigroupal. Nested and Parallel are covered as well.
DevInsideYou (@DevInsideYou)

EVENTS

Fundamentals of Scala, March 14th-15th, Lagos, Nigeria

It's a two days intensive, hands-on training for newbies who wants to take a leap into functional programming in Scala.
Lagos Scala Meetup
Stairway to Scala Workshop, March 16th-20th, San Damiano, CA, USA

Use code: SCALATIMESMAR20 to get -10%.
Artima, Inc (@ArtimaInc)
Scalar, March 19th-21st, Warsaw, Poland

Get ready for the workshop-driven FP event in Poland!
SoftwareMill (@scalarconf)
ZIO Hackathon, March 22nd-23rd, Warsaw, Poland

Over the course of two days, we will share and learn about ZIO and related projects; chat about functional programming, functional Scala, and much more; work on fun projects; and get to know one another.
Ziverge (@zivergetech)
ScalaUA, April 3th-4th, Kyiv, Ukraine

Wholesale 10+ tickets are available till 2020.04.02.
ScalaUA (@ScalaUA_Conf)
flatMap(Oslo), May 14th-15th, Oslo, Norway

User our link for a special discount for Scala Times readers!
flatMap(Oslo) (@flatmaposlo)
Scala Swarm, June 18th-23rd, Porto, Portugal

Ticket sale is now open, come quick and grab your ticket to this unique event!
ScalaSwarm (@ScalaSwarmConf)

RELEASES

ZIO 1.0.0-RC18

A large update with revamped environment now available as powerful ZLayers. ZIO 1.0.0-RC18 is the last expected release candidate for ZIO 1.0. There are no breaking changes between RC18 and 1.0, but no guarantees.
ZIO contributors
Metals v0.8.1

Metals is a language server for Scala that works with VS Code, Vim, Emacs, Sublime Text, Atom and Eclipse. New features: insert missing abstract members, new file provider, enable rename preview for Visual Studio Code, debug and run working in Emacs.
Metals contributors
Slinky 0.6.4

Write React apps in Scala just like you would in ES6. New version featuring support for Scala.js 1.0, new modules for interacting with React Router, API cleanups, and more!
slinky contributors
cats-effect 2.1.2

Now with support for ScalaJS 1.0.0 (yay!) and some important bug fixes and tweaks.
cats-effect contributors

VARIA

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SoftwareMill





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