A brief overview of the Scala ecosystem, main projects and trends, Web frameworks and database libraries

1. Scalaexploring the ecosystem
@_denisftw_
http://appliedscala.com

2. Tools
1. Akka (Jonas Bonér, 2009)
2. Play 2 (Zenexity, 2013)
3. Spark (Matei Zaharia, 2014)

3. Akka
● Inspired by Erlang and written in Scala
● Enables actor-based concurrency on JVM
● Offers fault-tolerance, supervision
● Part of Scala distribution since 2.10
● Forms a base for many projects including Play and Spark
● Java and Scala API

4. Play 2
● Inspired by Ruby on Rails
● Play 1 is written in Java
● Play 2 is rewritten in Scala from scratch
● Uses Netty and Akka behind the scenes
● Java and Scala API

5. Spark
● Started by Matei Zaharia during his PhD work
● Maintained by Apache Foundation
● Written in Scala and actively uses Scala REPL
● Usually much faster than Hadoop
● Enables machine learning and ad-hoc data analysis
● Hosts other projects such as Spark Streaming and Spark SQL
● Java, Scala and Python API

6. Web frameworks
● Play 2
● akka-http (Spray)
● Scalatra
● http4s
● Finagle
● Colossus
● Lift

7. Dependency injection
● Scaldi (Oleg Ilyenko)
● MacWire (Adam Warski)
● Google Guice
● SubCut (Dick Wall)
● Cake pattern

8. Database access
● ScalikeJDBC
● Slick
● doobie (Typelevel)

9. The book
● Suited for people with no prior
experience in Scala
● Includes functional programming tutorial
● Focuses on Play 2.5
● ScalikeJDBC, MacWire, Akka
● Webpack, Sass, React, EcmaScript 6

10. Thanks!
https://leanpub.com/modern-web-development-with-scala
http://appliedscala.com/blog/2016/scaldi-and-play/
http://appliedscala.com/blog/2016/scalikejdbc-and-play/
Photo credits:
Andoni Silva, Aaron Burden, Eutah Mizushima, Moritz Schmidt, Scott Webb
Rohit Tandon, Jeff Sheldon, Stefan Kunze, Oliver Wendel