Knoldus Blogs

Play Framework 2.2 with WebJars client-side web libraries

April 21, 2014Bootstrap, CSS, Future, Java, JavaScript, jQuery, Non-Blocking, Play Framework, Reactive Application, Studio-Scala, WebClean code, jquery, Play framework, Public Cloud, scala

Reading Time: < 1 minute WebJars are client-side web libraries (e.g. jQuery & Bootstrap) packaged into JAR (Java Archive) files. WebJars can be added as dependencies to an app by simply adding them to the build.sbt file. There is also a helper library named webjars-play that makes it easy to reference WebJar assets. Here is an example build.sbt file with webjars-play and the bootstrap WebJar as dependencies. Do the following Continue Reading

Employee-Self-Service: Reactive and Non-Blocking Database Access using Play Framework and Anorm – (Part-4)

April 13, 2014Bootstrap, CSS, Future, JavaScript, jQuery, Non-Blocking, Play Framework, Reactive Application, Studio-Scala, WebClean code, Future, Javascript, play, Play framework, Public Cloud, sbt, scala, WebJars

Reading Time: 2 minutes Last week, We have added Database Access as Reactive and Non-Blocking behaviour in Employee-Self-Service application. Now we have added some more features. These are following: Achieving, Futures to use more idiomatic error handling. Replaced the embedded JS & CSS libraries with WebJars. Achieving, table pagination and sorting functionality. Before: def list() = Action.async { implicit request => val futureEmpList = scala.concurrent.Future { Employee.list } val timeoutFuture = Promise.timeout("Oops", Continue Reading

Mock Unit Testing using Mockito in Play Scala project

April 12, 2014July 23, 2018Play Framework, Studio-ScalaMockito, ScalaTest, Unit Testing

Reading Time: 2 minutes During Unit Testing in a Play Scala project, there arises a need to Mock certain Objects or Traits which are used in the unit, so that the unit being tested has a consistent interaction with its outside dependencies. But due to tight coupling or external dependencies, objects cannot be tested as a unit. So, we need to mock those external dependencies by adding fake external Continue Reading

Employee-Self-Service: Reactive and Non-Blocking Database Access using Play Framework and Anorm – (Part-3)

April 6, 2014April 6, 2014Non-Blocking, Play Framework, Reactive Application, Studio-Scala, WebNon-Blocking, Play framework, Reactive, scala

Reading Time: 1 minute Last week, We have added Reactive and Non-Blocking behaviour in Employee-Self-Service application. Now we have implemented Database Access as Reactive and Non-Blocking: Before def list() = Action.async { implicit request => Employee.list match { case Right(data) => Promise.timeout(Ok(html.list(data)), 1 seconds) case Left(error) => Promise.timeout(Ok(html.list(Nil)), 1 seconds) } } After def list() = Action.async { implicit request => val futureEmpList = scala.concurrent.Future { Employee.list } val timeoutFuture = Promise.timeout(“Oops”, 10.second) Continue Reading

How to use Cookies in Play framework

April 5, 2014July 23, 2018Play Framework, Studio-Scala, WebCookies, Play framework, scala, Web

Reading Time: 2 minutes Play framework is being used by every Scala developer now a days. In this post we’ll learn about using Cookies in Play framework. Play has a stateless architecture so in order to keep the data across multiple HTTP request we can use Session & Flash. But both Session & Flash loose data as soon as browser is closed. So, to retain data even after closing the browser, we Continue Reading

Monthly Scala News Letter – March 2014

March 25, 2014July 26, 2018Akka, Java, News, Play Framework, Reactive Application, Studio-Scala, Web

Reading Time: < 1 minute We are back again with April 2014, Newsletter. Here is this Monthly Scala News letter – March 2014 In this news letter, you will find some new organizations which are adopting Scala, Akka in their daily project, some new books to become expert of Scala, Akka and a new way to convince your boss to use typesafe platform. So, if you haven’t subscribed to the Continue Reading