Packages

package root

Definition Classes: root

package play

Play framework.

Play

http://www.playframework.com

Definition Classes: root

package api

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 cache

Contains the Cache access API.

Definition Classes: api

package controllers

Definition Classes: api

package data

Contains data manipulation helpers (typically HTTP form handling)

import play.api.data._
import play.api.data.Forms._

val taskForm = Form(
  tuple(
    "name" -> text(minLength = 3),
    "dueDate" -> date("yyyy-MM-dd"),
    "done" -> boolean
  )
)

Definition Classes: api

package db

Contains the JDBC database access API.

Example, retrieving a connection from the 'customers' datasource:

val conn = db.getConnection("customers")

Definition Classes: api

package http

Contains standard HTTP constants.

Contains standard HTTP constants. For example:

val text = ContentTypes.TEXT
val ok = Status.OK
val accept = HeaderNames.ACCEPT

Definition Classes: api

package i18n

Contains the internationalisation API.

For example, translating a message:

val msgString = Messages("items.found", items.size)

Definition Classes: api

package inject

Play's runtime dependency injection abstraction.

Play's runtime dependency injection support is built on JSR-330, which provides a specification for declaring how dependencies get wired to components. JSR-330 however does not address how components are provided to or located by a DI container. Play's API seeks to address this in a DI container agnostic way.

The reason for providing this abstraction is so that Play, the modules it provides, and third party modules can all express their bindings in a way that is not specific to any one DI container.

Components are bound in the DI container. Each binding is identified by a BindingKey, which is typically an interface that the component implements, and may be optionally qualified by a JSR-330 qualifier annotation. A binding key is bound to a BindingTarget, which describes how the implementation of the interface that the binding key represents is constructed or provided. Bindings may also be scoped using JSR-330 scope annotations.

Bindings are provided by instances of Module.

Out of the box, Play provides an implementation of this abstraction using Guice.

Definition Classes: api
See also: The Module class for information on how to provide bindings.

package internal

Definition Classes: api

package libs

Contains various APIs that are useful while developing web applications.

Definition Classes: api

package concurrent

package crypto

package functional

package jcache

package json

Json API

For example:

import play.api.libs.json._
import play.api.libs.functional.syntax._

case class User(id: Long, name: String, friends: Seq[User] = Seq.empty)
object User {

  // In this format, an undefined friends property is mapped to an empty list
  implicit val format: Format[User] = (
    (__ \ "id").format[Long] and
    (__ \ "name").format[String] and
    (__ \ "friends").lazyFormatNullable(implicitly[Format[Seq[User]]])
      .inmap[Seq[User]](_ getOrElse Seq.empty, Some(_))
  )(User.apply, unlift(User.unapply))
}

object MyController extends play.api.mvc.Controller {
   def displayUserAsJson(id: String) = Action {
      Ok(Json.toJson(User(id.toLong, "myName")))
   }

   def saveUser(jsonString: String)= Action {
     val user = Json.parse(jsonString).as[User]
     //myDataStore.save(user)
     Ok
   }
}

package logback

package openid

package streams

package typedmap

package ws

Provides implicit type classes when you import the package.

Codecs

Collections

Comet

EventSource

Files

JNDI

Jsonp

package mvc

Contains the Controller/Action/Result API to handle HTTP requests.

For example, a typical controller:

class HomeController @Inject() (val controllerComponents: ControllerComponents) extends BaseController {

  def index = Action {
    Ok("It works!")
  }

}

Definition Classes: api

package routing

Definition Classes: api

package templates

Definition Classes: api

package test

Contains test helpers.

Definition Classes: api

play.api

libs

package libs

Contains various APIs that are useful while developing web applications.

Source: package.scala

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Type Members

case class Jsonp(padding: String, json: JsValue) extends Product with Serializable
JSONP helper.
JSONP helper.
Example of use, provided the following route definition:
```
GET  /my-service       Application.myService(callback: String)
```
The following action definition:
```
def myService(callback: String) = Action {
  val json = ...
  Ok(Jsonp(callback, json))
}
```
And the following request:
```
GET /my-service?callback=foo
```
The response will have content type “application/javascript” and will look like the following:
```
foo({...});
```
Another example, showing how to serve either JSON or JSONP from the same action, according to the presence of a “callback” parameter in the query string:
```
def myService = Action { implicit request =>
  val json = ...
  request.queryString.get("callback").flatMap(_.headOption) match {
    case Some(callback) => Ok(Jsonp(callback, json))
    case None => Ok(json)
  }
}
```

Value Members

object Codecs
Utilities for Codecs operations.
object Collections
Utilities functions for Collections

object Comet

Helper function to produce a Comet using Akka Streams.

Please see https://en.wikipedia.org/wiki/Comet_(programming) for details of Comet.

Example:

def streamClock() = 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 Comet.flow("parent.clockChanged"))
}

object EventSource

This class provides an easy way to use Server Sent Events (SSE) as a chunked encoding, using an Akka 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 javax.inject.Singleton
import akka.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) =&gt;
    df.format(ZonedDateTime.now())
  }
  Ok.chunked(source via EventSource.flow).as(ContentTypes.EVENT_STREAM)
}

object Files
FileSystem utilities.
object JNDI
JNDI Helpers.
object Jsonp extends Serializable

Packages

Play

Read configuration

Use the logger

Define a Plugin

Create adhoc applications (for testing)

libs

package libs

Type Members

Value Members

Inherited from AnyRef

Inherited from Any

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Packages

Play

Read configuration

Use the logger

Define a Plugin

Create adhoc applications (for testing)

libs 

package libs

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Value Members

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libs