How to implement start, stop and error methods in play framework(2.5.x)

Question

I am very new to play framework. I am trying to do something when my application will start and also do something when application will stop. I started searching for the entry and finish points and found out that in the 2.0 documentation there is ScalaGlobal where i can override the onStart, onStop and onError methods and do something inside it. For example:

object Global extends GlobalSettings {

  override def onStart(app: Application) {
    Logger.info("Application has started")
  }  

  override def onStop(app: Application) {
    Logger.info("Application shutdown...")
  }  

}

This code works fine for me in scala. But it is deprecated. But i could't find anything like that in 2.5.x documentation. Is there any methods to access the Start and Stop points of an application in play framework??

1. How can i access the lifecycle methods in play framework??
   
   

EDIT: Is there any callbacks in play framework where any request will go through that method and then to others when certain methods are called like global ajax event handlers ??

Answer 1

To replace onStart method you need to define EagerBindings in new module: https://www.playframework.com/documentation/2.5.x/ScalaDependencyInjection#Eager-bindings

To replace onStop method you need to register some code on stop hook: https://www.playframework.com/documentation/2.5.x/ScalaDependencyInjection#Stopping/cleaning-up

To replace onError you need to define own error handler and add proper configuration in application.conf: https://www.playframework.com/documentation/2.5.x/ScalaErrorHandling

More information about migration to Play 2.5.x: https://www.playframework.com/documentation/2.5.x/GlobalSettings

Answer 2

You need to follow the source code of Play :

You can do something in Global.java when the application starts or shuts down like this :