Exploring the Scala ecosystem

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

Transcript

1. Scala exploring 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