This document provides an overview of personalities, learning resources, tools, libraries, and frameworks in the Scala ecosystem. It discusses influential Scala figures like Martin Odersky, Roland Kuhn, John De Goes, and Daniel Spiewak. Popular learning resources mentioned include courses on Coursera and websites like Scalacenter. Libraries and tools highlighted are Play Framework, Akka, Cats, ScalaZ, Shapeless, Scalatest, and IDEs like IntelliJ and Eclipse.

1. Scala ecosystem
Mikhail Girkin
Software engineer
HBC
@mike_girkin

2. Agenda
- Personalities
- Learning resources
- Libraries
- Tools

3. Scala language designer
2 courses on Coursera
Youtube conference talks and lectures
Martin Odersky

4. ● Reactive streams
● Akka
“Reactive design patterns”
“Principles of reactive programming” (et al)
Roland Kuhn

5. John De Goes
● scalaz
● decent talks

6. Daniel Spiewak
● cats
● decent talks

7. Eric Meijer
● C# and LINQ
● Reactive extensions
● Haskell
“Principles of reactive programming” (et al)

8. Learning resources
Scalacenter https://scala.epfl.ch
Exercises by “47 Degrees” https://www.scala-exercises.org
Coursera - free courses
Scastie https://scastie.scala-lang.org
Awesome scala https://github.com/lauris/awesome-scala

9. Tools, Libraries and frameworks

10. IDE
IntelliJ IDEA
Eclipse/ScalaIDE
Emacs + Ensime

11. Play framework
Full-fledged web framework:
● Http handling
● Templates
● Json
● Dependency injection
● WebSockets
● SQL databases access - slick or anorm

12. Akka*
Actor-based distributed platform
● Akka-actors
● Akka-streams
● Akka-http
● Alpakka

13. Unit testing
Honorable mentions
● Scalatest
● Specs2
● Scalacheck
● Scalamock
● Mockito

14. Cats
You are enlightened!
From OO-world into shiny functional programming
Typeclasses everywhere
Semigroups, functors and monads awaiting

15. Cats ecosystem
Do the job in a functional way
● fs2
● Http4s
● Circe
● Doobie
● Hammock
● cats-effect
Free book - “Scala with Cats” https://underscore.io/books/scala-with-cats

16. ScalaZ
Where Scala FP has started
● Category theory implemetation
● Streams
● ZIO and effects
Pay what you want book - ”Functional Programming for Mortals”
https://leanpub.com/fpmortals

17. Shapeless
Advanced generic programming
Let the compiler do the boilerplate for you!
● Polymorphic functions
● HList - tuples on steroids
● Discriminated unions - “either for more then 2”
● Lenses
● Many more

18. And many more