Scala Play Web Framework

1. Scala Play Framework
Abdhesh Kumar
Associate Software Consultant
Sears Global Technology

2. What is Play Framework?
● The High Velocity Web Framework For Java and Scala
● Play is based on a lightweight, stateless, web-friendly architecture.
● Built on Akka, Play provides predictable and minimal resource
consumption (CPU, memory, threads) for highly-scalable applications.

3. Scale predictably
❖ Stateless Web Tier
❖ Non-blocking I/O
❖ Built on Akka
❖ Real-time enabled

4. Modern web & mobile
❖ RESTful by default
❖ Asset Compiler for CoffeeScript, LESS, etc
❖ JSON is a first class citizen
❖ Websockets, Comet, EventSource
❖ Extensive NoSQL & Big Data Support

5. ❏ Declarative application URL scheme configuration
❏ Type-safe mapping from HTTP to an idiomatic Scala API
❏ Type-safe template syntax
❏ Architecture that embraces HTML5 client technologies
❏ Live code changes when you reload the page in your web browser
❏ Full-stack web framework features, including persistence, security, and
internationalization
Key features

6. Play framework stack

7. The application’s model-view-controller structure

9. 1. Download the latest Typesafe Activator.
2. Extract the archive on a location where you have write access.
3. Change dir with cmd cd activator*
4. Add Executables to Path
5. On Unix, use export PATH=/path/to/activator:$PATH
6. On Windows, add ;C:pathtoactivator to your PATH environment variable.
Getting Play and setting up the Play environment

10. 1. activator new my-first-app play-scala
2. cd my-first-app
3. activator run
4. http://localhost:9000 - access your application here.
5. You are now ready to work with Play!
Creating Play Application

11. Anatomy of a Play application

12. Play routes HTTP requests to action methods

13. Routing syntax

14. Requests Mappings

15. Controller

16. Model

17. View

18. References
Official Documentation https://www.playframework.com/