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

Deployment (Heroku)


Part of the Continuous Delivery process, the deployment phase is one of the most critical. An application when deployed, is released into the wild where innocent monsters (users) are massively mistreating it (using it).

The deployed version is the one that will be used, it will show end-users the new features, bug fixes, and so on (or the problems, if any). It has to be resistant to peaks of use. So there are several needs that we might find very helpful at deploy time. Examples of those needs are the ability to redeploy quickly and easily when hot fixes have been made, or to scale our application horizontally when running on the cloud.

Nowadays, a great solution to those problems is the Heroku provider (cloud hosting) that comes with a PaaS, which is completely independent of the underlying infrastructure. And managing a running application is very easy, thanks to their amazing Toolbelt tool.

Okay, calm down! Let's rewind a bit and briefly introduce what Heroku is.

Heroku...