Developing WebSocket clientsin JavaScript
Most WebSocket clients are implemented as web pages taking advantage of the JavaScript WebSocket API. We will cover how to do this in the next section.
The Jakarta API for WebSocket provides a client API that allows us to develop WebSocket clients as standalone Java applications. We will be covering this capability later in the chapter.
Developing JavaScript client-side WebSocket code
In this section, we will cover how to develop client-side JavaScript code to interact with the WebSocket endpoint we developed in the previous section.
The client page for our WebSocket example is implemented as a JSF page using HTML5-friendly markup (as explained in Chapter 7).
As illustrated in Figure 9.1, our client page consists of a text area where we can see what the users of our application are saying (it is, after all, a chat application), and a text-input box that we can use to send messages to other users.
