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April 28th, 2016, ISSUE 115


Programming in Scala, Third Edition

This third edition has been updated to cover new features up to and including Scala version 2.12.
Martin Odersky, Lex Spoon, and Bill Venners
How to contribute to IntelliJ Scala plugin

Make no mistake, writing IDE code can be both educational and entertaining!
Pavel Fatin
The underrated applicative functor

Learn why applicative functors are important and you can leverage them in practice.
Krzysiek Ciesielski (@kpciesielski)
ScalaMock: macros strike back

A description of important pitfalls and weaknesses of ScalaMock.
Bartosz Kowalik
sbt Reference Manual — Testing sbt plugins

A document written in 2011 now ported into sbt documentation.
Eugene Yokota (@eed3si9n)
Scala macros part III – Intellij Idea Support

How to create an IntelliJ plugin to make IDE's coding assistance aware of AST changes.
Bartosz Bąbol (@BBartosz91)
Scalar 2016 whiteboard voting results

Scalaz or Cats? Idea, Vim or Emacs? Play or Spray? Here are the results of our recent poll.
SoftwareMill (@softwaremill)
Scala: One language to rule them all (I)

Learn why Scala is the perfect choice for creating DSLs.
Pablo Fco. Pérez (@pfcoperez)
Scalaz features for everyday usage part 1: Typeclasses and Scala extensions

Discover Equals, Order, and Enum typeclasses as well as extensions to Option, Boolean, Lists, Maps and Strings.
Jos Dirksen (@josdirksen)
Overcoming immutability in Scala

Some tips on how to shift your approach if you come from an imperative language to Scala.
Joel McCance
Practical Monads: Dealing with Futures of Options

Don't want to pull Scalaz/Cats to dependencies? Build your own monad transformer.
Matt Fowler (@mattsfowler)
When Option Is Not Good Enough

People are using Option too often where their business logic clearly indicates they should use their own, custom ADT.
Daniel Westheide (@kaffeecoder)
Testing AWS Scala Microservices

If your project depends on S3, SQS or Dynamo, here are some plugins that should make testing much easier.
Ben Darfler (@bdarfler)


Reactive Summit 2016 - Call For Proposals

Apply if you'd like to speak in Austin, TX (October 4th & 5th)
Reactive Summit
Scala Up North - Call for Presentations

CFP ends May 14th. Apply if you'd like to speak in Quebec, Canada (August 5th & 6th)
Scala Up North (@ScalaUpNorth)
Scala Days Berlin 2016

June 13th-17th. Use code "sponsorfriend" during checkout for $50 discount! Brought to you by silver sponsor - SoftwareMill.
Scala Days


I Have Money

Rich-featured example of event-sourced application with full CQRS support.
Vladimir Pavkin (@vlpavkin)
reactive-kafka 0.8.7

Important bugfix release.
reactive-kafka contributors


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