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Merge pull request #101 from mikulskibartosz/intro-to-play-scala
Introduction to the Play Framework in Scala
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‎play-scala/introduction-to-play/app/controllers/HomeController.scala

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package controllers
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import javax.inject._
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import play.api._
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import play.api.mvc._
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@Singleton class HomeController @Inject()(val controllerComponents: ControllerComponents) extends BaseController {
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def index() = Action { implicit request: Request[AnyContent] =>
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Ok(views.html.firstexample())
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}
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def printSum(first: Long, second: Long) = Action { implicit request: Request[AnyContent] =>
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val sum = first + second
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Ok(views.html.index(sum))
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}
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}

‎play-scala/introduction-to-play/app/views/firstexample.scala.html

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@()
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@main("Welcome to Introduction to Play Framework!") {
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<h1>Welcome to Introduction to Play Framework!</h1>
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}

‎play-scala/introduction-to-play/app/views/index.scala.html

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@(sum: Long)
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@main("Add two numbers") {
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<h1>The sum is @sum!</h1>
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}

‎play-scala/introduction-to-play/app/views/main.scala.html

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@*
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* This template is called from the `index` template. This template
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* handles the rendering of the page header and body tags. It takes
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* two arguments, a `String` for the title of the page and an `Html`
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* object to insert into the body of the page.
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*@
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@(title: String)(content: Html)
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<!DOCTYPE html>
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<html lang="en">
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<head>
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@* Here's where we render the page title `String`. *@
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<title>@title</title>
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<link rel="stylesheet" media="screen" href="@routes.Assets.versioned(" stylesheets
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/main.css")">
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<link rel="shortcut icon" type="image/png" href="@routes.Assets.versioned(" images
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/favicon.png")">
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</head>
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<body>
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@* And here's where we render the `Html` object containing
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* the page content. *@
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@content
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<script src="@routes.Assets.versioned(" javascripts
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/main.js")" type="text/javascript"></script>
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</body>
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</html>

‎play-scala/introduction-to-play/build.sbt

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name := """baeldung-play-framework""" organization := "com.baeldung"
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version := "1.0-SNAPSHOT"
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lazy val root = (project in file(".")).enablePlugins(PlayScala)
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scalaVersion := "2.13.2"
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libraryDependencies += guice libraryDependencies += "org.scalatestplus.play" %% "scalatestplus-play" % "5.0.0" % Test

‎play-scala/introduction-to-play/conf/application.conf

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# https://www.playframework.com/documentation/latest/Configuration

‎play-scala/introduction-to-play/conf/logback.xml

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<!-- https://www.playframework.com/documentation/latest/SettingsLogger -->
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<configuration>
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<conversionRule conversionWord="coloredLevel" converterClass="play.api.libs.logback.ColoredLevel"/>
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<appender name="FILE" class="ch.qos.logback.core.FileAppender">
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<file>${application.home:-.}/logs/application.log</file>
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<encoder>
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<charset>UTF-8</charset>
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<pattern>
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%d{yyyy-MM-dd HH:mm:ss} %highlight(%-5level) %cyan(%logger{36}) %magenta(%X{akkaSource}) %msg%n
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</pattern>
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</encoder>
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</appender>
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<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
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<withJansi>true</withJansi>
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<encoder>
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<charset>UTF-8</charset>
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<pattern>
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%d{yyyy-MM-dd HH:mm:ss} %highlight(%-5level) %cyan(%logger{36}) %magenta(%X{akkaSource}) %msg%n
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</pattern>
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</encoder>
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</appender>
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<appender name="ASYNCFILE" class="ch.qos.logback.classic.AsyncAppender">
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<appender-ref ref="FILE"/>
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</appender>
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<appender name="ASYNCSTDOUT" class="ch.qos.logback.classic.AsyncAppender">
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<appender-ref ref="STDOUT"/>
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</appender>
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<logger name="play" level="INFO"/>
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<logger name="application" level="DEBUG"/>
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<root level="WARN">
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<!--<appender-ref ref="ASYNCFILE" />-->
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<appender-ref ref="ASYNCSTDOUT"/>
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</root>
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</configuration>

‎play-scala/introduction-to-play/conf/messages

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# https://www.playframework.com/documentation/latest/ScalaI18N

‎play-scala/introduction-to-play/conf/routes

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# Routes
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# This file defines all application routes (Higher priority routes first)
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# https://www.playframework.com/documentation/latest/ScalaRouting
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# ~~~~
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# An example controller showing a sample home page
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GET / controllers.HomeController.index
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GET /sum/:first/:second controllers.HomeController.printSum(first: Long, second: Long)
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# Map static resources from the /public folder to the /assets URL path
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GET /assets/*file controllers.Assets.versioned(path="/public", file: Asset)

‎play-scala/introduction-to-play/project/build.properties

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sbt.version=1.3.10

‎play-scala/introduction-to-play/project/plugins.sbt

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addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.8.2")
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addSbtPlugin("org.foundweekends.giter8" % "sbt-giter8-scaffold" % "0.11.0")

‎play-scala/introduction-to-play/public/images/favicon.png

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‎play-scala/introduction-to-play/public/javascripts/main.js

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‎play-scala/introduction-to-play/public/stylesheets/main.css

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‎play-scala/introduction-to-play/test/controllers/HomeControllerSpec.scala

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package controllers
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import org.scalatestplus.play._
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import org.scalatestplus.play.guice._
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import play.api.test._
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import play.api.test.Helpers._
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class HomeControllerSpec extends PlaySpec with GuiceOneAppPerTest with Injecting {
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"HomeController GET" should {
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"render the index page from a new instance of controller" in {
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val controller = new HomeController(stubControllerComponents())
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val home = controller.index().apply(FakeRequest(GET, "/"))
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status(home) mustBe OK
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contentType(home) mustBe Some("text/html")
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contentAsString(home) must include("Welcome to Introduction to Play Framework")
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}
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"render the index page from the application" in {
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val controller = inject[HomeController]
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val home = controller.index().apply(FakeRequest(GET, "/"))
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status(home) mustBe OK
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contentType(home) mustBe Some("text/html")
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contentAsString(home) must include("Welcome to Introduction to Play Framework")
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}
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"render the index page from the router" in {
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val request = FakeRequest(GET, "/")
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val home = route(app, request).get
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status(home) mustBe OK
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contentType(home) mustBe Some("text/html")
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contentAsString(home) must include("Welcome to Introduction to Play Framework")
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}
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"render a page that prints the sum of two numbers" in {
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val request = FakeRequest(GET, "/sum/10/20")
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val sumOfNumbers = route(app, request).get
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status(sumOfNumbers) mustBe OK
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contentType(sumOfNumbers) mustBe Some("text/html")
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contentAsString(sumOfNumbers) must include("The sum is 30!")
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}
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}
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}

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