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Play 2.0 for Scala developers

The Scala API for Play 2.0 application developers is available in the play.api package.

The API available directly inside the play package (such as play.mvc) is reserved for Java developers. As a Scala developer, look at play.api.mvc.

Main concepts

• HTTP programming
  • Actions, Controllers and Results
  • HTTP routing
  • Manipulating results
  • Session and Flash scopes
  • Body parsers
  • Actions composition
• Asynchronous HTTP programming
  • Handling asynchronous results
  • Streaming HTTP responses
  • Comet sockets
  • WebSockets
• The template engine
  • Scala templates syntax
  • Common use cases
• HTTP form submission and validation
  • Form definitions
  • Using the form template helpers
• Working with Json
  • The Play Json library
  • Handling and serving Json requests
• Working with XML
  • Handling and serving XML requests
• Handling file upload
  • Direct upload and multipart/form-data
• Accessing an SQL database
  • Configuring and using JDBC
  • Using Anorm to access your database
  • Integrating with other database access libraries
• Using the Cache
  • The Play cache API
• Calling WebServices
  • The Play WS API
• Integrating with Akka
  • Setting up Actors and scheduling asynchronous tasks
• Internationalization
  • Messages externalisation and i18n
• The application Global object
  • Hooking the application lifecycle
  • Customizing error pages
  • Custom request routing
• Testing your application
  • Writing unit tests
  • Writing functional tests

Advanced topics

• Handling data streams reactively
  • Iteratees
  • Enumerators and Enumeratees
  • Promises
  • Writing body parsers
• Writing a Play plugin
  • The play.api.Plugin API
• Typeclasses everywhere
  • Writing querystring and path binders
  • Handling new response formats
  • Writing new form binders
  • Writing new WebSocket frames
  • Handling new Json types

Tutorials

• The Hello World tutorial