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Play Framework essentials

By : Julien Richard-Foy

3.6 (8)

Play Framework essentials

3.6 (8)

By: Julien Richard-Foy

Overview of this book

This book targets Java and Scala developers who already have some experience in web development and who want to master Play framework quickly and efficiently. This book assumes you have a good level of knowledge and understanding of efficient Java and Scala code.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Building a Web Service

1. Building a Web Service

Play – a framework used to write web applications

Bootstrapping a Play application

URL routing

Building HTTP responses

Reading JSON requests

Summary

2. Persisting Data and Testing

2. Persisting Data and Testing

Testing your web service

Persisting data

Using an in-memory database for tests

Summary

3. Turning a Web Service into a Web Application

3. Turning a Web Service into a Web Application

Delta between a web service and a web application

Using the template engine to build web pages

Generating HTML forms

Reading and validating HTML form data

Handling content negotiation

Putting things together

Writing web user interface tests

Summary

4. Integrating with Client-side Technologies

4. Integrating with Client-side Technologies

Philosophy of Play regarding client-side technologies

Serving static assets

Using the JavaScript reverse router

Managing assets from the build system

Summary

5. Reactively Handling Long-running Requests

5. Reactively Handling Long-running Requests

Play application's execution model

Scaling up your server

Embracing non-blocking APIs

Managing execution contexts

Writing incremental computations using iteratees

Streaming results using enumerators

Manipulating data streams by combining iteratees, enumerators, and enumeratees

Controlling the data flow

Summary

6. Leveraging the Play Stack – Security, Internationalization, Cache, and the HTTP Client

6. Leveraging the Play Stack – Security, Internationalization, Cache, and the HTTP Client

Handling security concerns

Saving computation time using cache

Serving content in several languages

Calling remote web services

Summary

7. Scaling Your Codebase and Deploying Your Application

7. Scaling Your Codebase and Deploying Your Application

Making an action's logic reusable and composable with action builders

Modularizing your code

Application deployment

Summary

Index

Index

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Preface

The Web allows you to make applications that can be used from anywhere in the world as long as there is an Internet connection. The Play framework has been designed to embrace the characteristics of modern web applications such as handling long-running requests and manipulating data streams.

This book shows you how to write such web applications using Play. I designed it to be progressive so that you can quickly write a running application and then enhance it to benefit from all the components of the Play stack, or from lower-level APIs if you need more control.

Code examples are given in both Scala 2.10 and Java 8 (except for some APIs that have no Java counterpart). You can find executable applications based on the code examples of the book at http://github.com/julienrf/pfe-samples.

Finally, I encourage you to browse the API documentation of the framework to complete the content of this book. You can find it online at http://www.playframework.com/documentation.

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