Play Framework Essentials -- Table of Contents -- Play Framework Essentials -- Credits -- About the Author -- About the Reviewers -- www.PacktPub.com -- Support files, eBooks, discount offers, and more -- Why subscribe? -- Free access for Packt account holders -- Preface -- What this book covers -- What you need for this book -- Who this book is for -- Conventions -- Reader feedback -- Customer support -- Downloading the example code -- Errata -- Piracy -- Questions -- 1. Building a Web Service -- Play - a framework used to write web applications -- Bootstrapping a Play application -- Play applications' layout -- URL routing -- Route path parameters -- Parameters type coercion -- Parameters with fixed values -- Query string parameters -- Default values of query string parameters -- Trying the routes -- Building HTTP responses -- Serializing application data in JSON -- Reading JSON requests -- Validating JSON data -- Handling optional values and recursive types -- Summary -- 2. Persisting Data and Testing -- Testing your web service -- Writing and running tests -- Testing the HTTP layer -- Using the reverse router to generate URLs -- Running a fake Play application -- Effectively writing HTTP tests -- Persisting data -- Using a relational database -- Getting a reference to the currently running application -- Using a database management library -- Using Slick in Scala -- Using JPA in Java -- Integrating with other persistence technologies -- Populating the database with fixtures -- The application's Global object -- Managing database schema evolutions -- Using an in-memory database for tests -- Summary -- 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 -- Inserting dynamic values -- Looping and branching -- Reusing document fragments -- Comments.

Import statements -- Generating HTML forms -- Repeated and nested fields -- Reading and validating HTML form data -- Handling the HTML form submission -- Validating the HTML form data -- The Scala form validation API -- The Java form validation API -- Optional and mandatory fields -- Sharing JSON validation and HTML form validation rules -- Handling content negotiation -- Putting things together -- Writing web user interface tests -- Summary -- 4. Integrating with Client-side Technologies -- Philosophy of Play regarding client-side technologies -- Serving static assets -- Sprinkling some JavaScript and CSS -- Using the JavaScript reverse router -- Managing assets from the build system -- Producing web assets -- Pipelining web assets' transformations -- Concatenating and minifying JavaScript files -- Gzipping assets -- Fingerprinting assets -- Managing JavaScript dependencies -- Running JavaScript tests -- Summary -- 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 -- Unidirectional streaming with server-sent events -- Preparing the ground -- Transforming streams of data using enumeratees -- Implementing a publish/subscribe system using Akka -- Bidirectional streaming with WebSockets -- Controlling the data flow -- Summary -- 6. Leveraging the Play Stack - Security, Internationalization, Cache, and the HTTP Client -- Handling security concerns -- Authentication -- Cross-site scripting -- Cross-site request forgery -- HTTP request filters -- Using the CSRF filter -- Enabling HTTPS -- Saving computation time using cache -- Serving content in several languages.

Calling remote web services -- Background - the OAuth 2.0 protocol -- Integrating your application with your preferred social network -- Implementing the OAuth client -- Calling the HTTP API of your preferred social network -- Summary -- 7. Scaling Your Codebase and Deploying Your Application -- Making an action's logic reusable and composable with action builders -- Capturing the logic of actions that use blocking APIs -- Capturing the logic of actions that require authentication -- Combining action builders -- Modularizing your code -- Applying the inversion of control principle -- Using dynamic calls in route definitions -- Setting up a dependency injection system -- Making your code injectable -- Mocking components -- Splitting your code into several artifacts -- Splitting your controller layer into several artifacts -- Application deployment -- Deploying to your dedicated infrastructure -- Deploying to the cloud -- Handling per environment configuration -- Overriding configuration settings using Java system properties -- Using different configuration files -- Summary -- Index.