Working with Data from the Web
Dave Mark, Jeff LaMarche · Apress eBooks · 2009
As you saw in the last chapter, writing code to communicate over a network can be complex and, at times, difficult. Fortunately, for many common network-related tasks, Apple has provided higher-level methods and objects that will make your life considerably easier. One fairly common task when you’re writing software for a device that’s pretty much always connected to the Internet is to retrieve data from web servers. There is a large amount of data available for applications to use on the World Wide Web, and there are countless reasons why an iPhone application might want to pull data from the Web.