Packages

  • package root
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    root
  • package play

    Play framework.

    Play framework.

    Play

    http://www.playframework.com

    Definition Classes
    root
  • package api

    Contains the public API for Scala developers.

    Contains the public API for Scala developers.

    Read configuration 
    val poolSize = configuration.getInt("engine.pool.size")
    Use the logger 
    Logger.info("Hello!")
    Define a Plugin 
    class MyPlugin(app: Application) extends Plugin
    Create adhoc applications (for testing) 
    val application = Application(new File("."), this.getClass.getClassloader, None, Play.Mode.DEV)
    Definition Classes
    play
  • package libs

    Contains various APIs that are useful while developing web applications.

    Contains various APIs that are useful while developing web applications.

    Definition Classes
    api
  • package concurrent
    Definition Classes
    libs
  • package crypto
    Definition Classes
    libs
  • package typedmap
    Definition Classes
    libs
  • Codecs
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  • EventSource
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  • Jsonp
o

play.api.libs

EventSource

object EventSource

This class provides an easy way to use Server Sent Events (SSE) as a chunked encoding, using an Pekko Source.

Please see the Server-Sent Events specification for details.

An example of how to display an event stream:

import java.time.ZonedDateTime
import java.time.format.DateTimeFormatter
import jakarta.inject.Singleton
import org.apache.pekko.stream.scaladsl.Source
import play.api.http.ContentTypes
import play.api.libs.EventSource
import play.api.mvc._

import scala.concurrent.duration._

def liveClock() = Action {
  val df: DateTimeFormatter = DateTimeFormatter.ofPattern("HH mm ss")
  val tickSource = Source.tick(0 millis, 100 millis, "TICK")
  val source = tickSource.map { (tick) =>
    df.format(ZonedDateTime.now())
  }
  Ok.chunked(source via EventSource.flow).as(ContentTypes.EVENT_STREAM)
}
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Type Members

  1. case class Event(data: String, id: Option[String], name: Option[String]) extends Product with Serializable

    An event encoded with the SSE protocol..

  2. case class EventDataExtractor[A](eventData: (A) => String) extends Product with Serializable
  3. case class EventIdExtractor[E](eventId: (E) => Option[String]) extends Product with Serializable
  4. case class EventNameExtractor[E](eventName: (E) => Option[String]) extends Product with Serializable
  5. trait LowPriorityEventEncoder extends AnyRef
  6. trait LowPriorityEventIdExtractor extends AnyRef
  7. trait LowPriorityEventNameExtractor extends AnyRef

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  1. final def !=(arg0: Any): Boolean
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  2. final def ##: Int
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  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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  6. final def eq(arg0: AnyRef): Boolean
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  7. def equals(arg0: AnyRef): Boolean
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  8. def flow[E](implicit arg0: EventDataExtractor[E], arg1: EventNameExtractor[E], arg2: EventIdExtractor[E]): Flow[E, Event, _]

    Makes a Flow[E, Event, _], given an input source.

    Makes a Flow[E, Event, _], given an input source.

    Usage example:

    val jsonStream: Source[JsValue, Unit] = createJsonSource()
Ok.chunked(jsonStream via EventSource.flow).as(ContentTypes.EVENT_STREAM)
  9. final def getClass(): Class[_ <: AnyRef]
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    @IntrinsicCandidate() @native()
  10. def hashCode(): Int
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  11. final def isInstanceOf[T0]: Boolean
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  12. final def ne(arg0: AnyRef): Boolean
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  13. final def notify(): Unit
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  14. final def notifyAll(): Unit
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  15. final def synchronized[T0](arg0: => T0): T0
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  16. def toString(): String
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  17. final def wait(arg0: Long, arg1: Int): Unit
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  18. final def wait(arg0: Long): Unit
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  19. final def wait(): Unit
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  20. object Event extends Serializable
  21. object EventDataExtractor extends LowPriorityEventEncoder with Serializable
  22. object EventIdExtractor extends LowPriorityEventIdExtractor with Serializable
  23. object EventNameExtractor extends LowPriorityEventNameExtractor with Serializable

Deprecated Value Members

  1. def finalize(): Unit
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    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

    (Since version 9)

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