Book Image

Learning Play! Framework 2

By : Andy Petrella
Book Image

Learning Play! Framework 2

By: Andy Petrella

Overview of this book

<p>The Learning Play! Framework 2 has been created for web developers that are building web applications. The core idea is to focus on the HTTP features and to enable them through a simplification lens. Building a web application no longer requires a configuration phase, an environment setup, or a long development lifecycle - it's integrated!<br /><br />Learning Play! Framework 2 will enable any web developers to create amazing web applications taking advantage of the coolest features. It's the fastest way to dive into Play!, focusing on the capabilities by using them in a sample application. Although essentially Java based code, a Scala version is presented as well – giving an opportunity to see some Scala in action.<br /><br />After setting up the machine and learning some Scala, you will construct an application which builds from static to dynamic, before introducing a database. <br /><br />Then we'll focus on how data can be consumed and rendered in several ways. This will enable some real time communication through WebSocket and Server-Sent Event – on both server and client sides.</p> <p>The book will end with testing and deployment, which completes any web development project.</p>
Table of Contents (20 chapters)
Learning Play! Framework 2
Credits
About the Author
Acknowledgement
About the Reviewers
www.packtpub.com
Preface
Materials
Index

Chapter 6. Moving to Real-time Web Applications

A web application, nowadays, is expected to be as reactive as a desktop one; moving statically from one page to another is no longer accepted. Furthermore, to enhance the user experience, we need to reduce as much as possible the amount of actions needed to have the content updated constantly.

We entered the real-time era some time back, and the mobile explosion has definitively confirmed that. Given this fact, the problem we face when creating a web application dedicated to mobile devices is, still, the bandwidth (this doesn't seem like we have entered the same era as our needs). So, we'll have to think more about some optimizations while communicating with the server. This chapter is dedicated to the utilities Play! Framework 2 is offering us to enable us to satisfy these points.

The following is what will be covered in this chapter:

  • Creating a dashboard, where the data will be updated in the background

  • Following the naïve approach using a polling...