scala on rails #rakutentech

Scala on Rails The Most Developer-Friendly Web Framework on the JVM

Kazuhiro Sera @seratch 2014/10/25 at Rakuten Technology Conference 2014

Build Concurrent, Distributed Apps

Scala is so powerful. Is it also useful for

usual apps? Absolutely Yes.

Usual Web Apps

Rails is not just a library. It’s a confirmed concept

to build web apps.

So I followed Rails style in the Scala world. Skinny Framework.

The most developer-friendly Web app

framework on the JVM

Installation

Mac OS X・Prerequisite: JDK 1.6 or higher ・Just `brew install skinny`

brew updatebrew install skinny

Windows? No problem!

Windows users are first-class citizens.

Windows / Linux・Prerequisite: JDK 1.6 or higher ・Download blank project from skinny-framework.org ・Or use Yeoman generator

npm install -g yonpm install -g generator-skinnyyo skinny

Todolist App

New Skinny app1

23

Scaffold Generatorplural singular attributes..

DB Migration

Now everything is done

Let’s add new task!

Validations by default

Pagination by default

Statically Typed Rails

Reverse Scaffoldtable_name plural singular

Generates scaffold from existing DB!

More Features for JS-heavy

Apps

Angular Ready!

Scala.js Ready!

Source Maps

Watch Task Runner

The most developer-friendly Web app

framework on the JVM

Begin Scala with Skinny! http://skinny-framework/