List of Listings

 

Chapter 1. Did you say reactive?

Listing 1.1. Example of nested callbacks in JavaScript

Chapter 2. Your first reactive web application

Listing 2.1. Defining a new tweets action

Listing 2.2. Route to the newly created tweets action

Listing 2.3. Retrieving the configuration

Listing 2.4. First attempt at connecting to the Twitter API

Listing 2.5. Printing out the stream of data from Twitter

Listing 2.6. Including the play-extra-iteratees library in the project

Listing 2.7. Reactive plumbing for the data from Twitter

Listing 2.8. Setting up a new actor

Listing 2.9. Setting up the WebSocket endpoint in app/controllers/Application.scala

Listing 2.10. Client-side connection to the WebSocket using JavaScript

Listing 2.11. Declaring the implicit RequestHeader to make it available in the view

Listing 2.12. Initializing the Twitter feed

Listing 2.13. Subscribing actors to the Twitter feed

Listing 2.14. TwitterStreamer actor subscribing to the Twitter stream

Listing 2.15. Resilient version of the JavaScript

Listing 2.16. Subscribing other nodes to the broadcast Twitter feed

Listing 2.17. Streaming the replicated Twitter feed in the controller

Chapter 3. Functional programming primer

Listing 3.1. A statement that removes an element from a list

Listing 3.2. An expression that filters a list and removes a specific element

Listing 3.3. Simple match expression spelling out a few numbers

Listing 3.4. Function to compute advertisement clicks on a per-month basis