Scala Reactive Programming

Play/Scala HelloWorld example

In this section, we will start learning Play Framework with our simple old-style HelloWorld Web Application example.

This HelloWorld example is using Play 2.6.11 without Play DI with Scala 2.12.4 and SBT 0.13.15. Perform the following steps to experiment this example:

1. Create a Play Framework SBT Project from your favorite IDE (I am using my favorite IDE: IntelliJ IDEA):

      Project Name: play-scala-helloworld-app 

2. Create a HelloWorld Play Controller without using DI, as follows:

HelloWorldNoDIController.scala:

      package controllers      import play.api.mvc.{Action, Controller}      class HelloWorldNoDIController extends Controller {        def helloWorld = Action {          Ok(views.html.helloWorld("Hello World Without DI."))        }      }

3. Create ...