D3.js: Cutting-edge Data Visualization

Creating the streaming server

In this section, we will use Node to create the streaming server. The server will handle the client connections and the connection to the Twitter-streaming API; it will also manage the list of topics for all the clients who deliver tweets as they arrive.

We will begin by creating Twitter authentication tokens; we will learn how to use the Twit module to manage the connection to the Twitter API, and how to use Socket.IO to handle real-time communication between the server and the client application.

To follow the examples in this section, open the chirp-server project directory in the terminal and run the following command to install the project dependencies:

$ npm install

This will create the node_modules directory ...