9. Adding APIs

There are many JavaScript libraries and web services, and you can include their features in your application by adding JSNI (as we saw in Chapter 8, “Mixing in JavaScript,”) and some GWT coding. In this chapter we see some examples and get to process data feeds to get weather information, use charts to provide a visual dashboard, and interact with geographic data working with maps.

Creating highly interactive, modern web applications doesn’t mean reinventing the wheel for each specific purpose. Rather, we like to utilize the many available APIs for just about anything you might want.