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June 21st, 2018, ISSUE 227

READING

Akka vs ZIO vs Monix, part 2: communication – SoftwareMill Tech Blog

Let’s explore examples which use multiple communicating actors, and see if it’s still possible and practical to implement them using ZIO or Monix.
Adam Warski (@adamwarski)
Compilation safety on Playframework’s i18n with Scala Macros

Leverage macros to make compilation fail for invalid key or invalid arguments.
Tanin Na Nakorn (@tanin)
Reflections on using Typelevel Scala

Now, that everyone is migrating on 2.12.6 I can tell: what TL Scala give me for all that time?
Mateusz Kubuszok (@MateuszKubuszok)
A simple way to write parsers: using the State monad

We’ll slowly implement an arithmetic parser from scratch, then we’ll see a Whitespace (the programming language, composed only of… whitespaces!) parser implementation using this technique. Finally, we’ll take a look around some battle-tested parsing libraries, to get serious.
Stéphane Derosiaux (@sderosiaux)
Introducing rdbc: asynchronous database access API for Scala and Java | Krzysztof Pado - blog

For quite some time it’s been bothering me that many excellent relational database access libraries for Scala use JDBC underneath. Even those with an asynchronous interface, like Slick, must exercise a pool of threads that are blocked on I/O actions.
Krzysztof Pado (@_povder)
Writing a simple Telegram bot with tagless final, http4s and fs2

Recently I’ve started diving in fs2 and http4s. They looked so awesome, that to properly introduce myself I decided to implement something interesting.
Vladimir Pavkin (@vlpavkin)

EVENTS

Lambda World Seattle, September 17th - 18th

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47 degrees (@47deg)
Lambda World Cádiz, Spain, October 25th - 26th, 2018

Use promo code STLW18 for Scala Times readers to get 10% discount!
47 degrees (@47deg)
Scala Wave, September 6th - 8th, 2018, Gdańsk, Poland

Use code scalatimes_10, registration with special 10% off discount, to use on the conference day, ends on June 30th!
Scalac (@scalawavepl)
Scala in the City, June 27th, 2018, Brighttalk, London, UK

Our two speakers this month are Leszek Sliwko discussing Scala on 40-core HPC machine & Luka Jacobowitz discussing Oh, all the things you'll traverse.
Signify Technology (@Signify_Tech)
Scala Italy, September 14th-15th, Florence

Use promo code SCALATIMES_U2N for a 10% discount for Scala Times readers!
Scala Italy (@ScalaItaly)

RELEASES

sttp 1.2.0

The Scala HTTP client that you always wanted! Now with ScalaJS support!
sttp contributors
Fs2 Redis

Stream-based client built on top of Fs2 and the async java client Lettuce.
Gabriel Volpe (@volpegabriel87)
circe-magnolia

Circe codec derivation using magnolia.
Vladimir Pavkin (@vlpavkin)
ocaps

Ocaps is a library for assembling capabilities in Scala.
Will Sargent (@will_sargent)

VARIA

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  1. Scala Times Issue #227

    Compilation safety on Playframework’s i18n with Scala Macros. Reflections on using Typelevel Scala. A simple way to write parsers: using the State monad. Writing a simple Telegram bot with tagless final, http4s and fs2. Lambda World Seattle, September 17th - 18th .


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