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May 3rd, 2018, ISSUE 220


Better logging with Monix 3, part 1: MDC

Monix 3 has a new feature called “local context propagation”, which is essentially ThreadLocals being tied to an execution of a single Task instead of a thread.
Oleg Pyzhcov
Learning how to code with Scala: Hello, World!

My attempt at a “HelloWorld” tutorial with (hopefully) as few assumptions about your coding knowledge as possible.
Sofia Vaughan-Jones (@SofiaVJones)
Flaky tests

Build tools have the ability to extend functionality with a plugin. I have taken this opportunity and created a plugin for sbt, called sbt-flaky, to automate running the test multiple times, analyze test reports and correlate results with recent changes.
Krzysztof Otrebski (@kotrebski)
Responding to Incoming Text Messages with Scala and Finatra

If you’ve ever wanted to create an SMS bot with Scala, you’re in the right place.
Kelley Robinson (@kelleyrobinson)
Understanding F[_] in Scala

This very abstract syntax comes up all the time in Scala, I will try to give you an intuition of what it means and how to use it.
Daniel Sebban (@dsebban)
Macros: the Plan for Scala 3

One of the biggest open questions for migrating to Scala 3 is what to do about macros. In this blog post we give our current thoughts. The gist is that we are trying to achieve full alignment between macros and Tasty.
Martin Odersky and Nicolas Stucki
Lightbend to ramp up Alpakka

We are very happy to announce that the company behind Akka, Lightbend, has set up a separate team to keep after Alpakka and give the community around it the attention it deserves.
The Akka and Alpakka Teams


Scala - Your First Programming Language - Part 14 - Seven-Segment Display Clock

In this video we will create a fun little project. It is a console application which will display the current time in the retro seven segment display style.
DevInsideYou (@DevInsideYou)
Full set of talks from Scalar Conference 2018

All the talks are now available.
SoftwareMill (@scalarconf)


WIN a ticket to Scala Days Berlin!

Simply send a blog you have written that you would like featured on our website!
Signify Technology (@Signify_Tech)
Lambda World Seattle, September 17th - 18th

Use promo code STLW18 for Scala Times readers to get 10% discount!
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 in the City, May 23rd, 2018, Concentra, London, UK

We will hear from Chris Birchall from OVO on Shapeless and Jamie Pullar from Concentra on Cats.
Signify Technology (@Signify_Tech)



Scala 2.13 Collection Compatibility Library
scala-collection-compat contributors
scalafmt 1.5.1 regression fix

An important fix if you're using 1.5.0.
scalafmt contributors
Dotty 0.7.0 and 0.8.0-RC1

sbt 1 support, kind polymorphism, improved support for SAM type.
Dotty contributors
Scala 2.12.6

Macros work again when compiling on Java 9 or 10 fixing 2.12.5 regression
Scala contributors


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