jm2dev / persistence-play-mongodb

Play framework and reactive mongo sample project/

Persistence with mongodb and play

Overview

Pet project to play around with the play scala framework and mongodb to persist data, like books.

Requirements

• Java 8
• SBT
• MongoDB

Additionally I use activator to generate a skeleton, and then I remove what I don’t need any more:

activator new 
// template scala-play

cd <my-project-name>
rm -fr bin libexec

// check everything works
sbt test

Check mongodb is up and running:

systemctl status mongod.service

Otherwise launch it replacing status by start.

MongoDB database

Connect to mongodb and create database cajas and collection libros if they don’t exist. Additionally we populate some data, a book on top of my table which clearly isn’t on a box.

{
  "titulo": "the art of shaving",
  "caja": "ninguna"
}

mongo
use cajas
db.libros.save({"titulo": "the art of shaving", "caja": "ninguna"})
db.libros.find()

References

• http://reactivemongo.org/releases/0.11/documentation/tutorial/play2.html
• http://www.cakesolutions.net/teamblogs/2014/03/13/reactivemongo-play-angularjs
• https://dzone.com/articles/building-rest-service-scala
• https://semaphoreci.com/community/tutorials/how-to-add-integration-tests-to-a-play-framework-application-using-scala
• https://gist.github.com/elaforc/9105687
• http://www.ibm.com/developerworks/library/wa-playful-web-dev-1-trs-bluemix/

Misc

This is your new Play application

This file will be packaged with your application when using activator dist.

There are several demonstration files available in this template.

Controllers

• HomeController.scala:

  Shows how to handle simple HTTP requests.

• AsyncController.scala:

  Shows how to do asynchronous programming when handling a request.

• CountController.scala:

  Shows how to inject a component into a controller and use the component when handling requests.

Components

• Module.scala:

  Shows how to use Guice to bind all the components needed by your application.

• Counter.scala:

  An example of a component that contains state, in this case a simple counter.

• ApplicationTimer.scala:

  An example of a component that starts when the application starts and stops when the application stops.

Filters

• Filters.scala:

  Creates the list of HTTP filters used by your application.

• ExampleFilter.scala

  A simple filter that adds a header to every response.