21. Web Services
Many of today’s apps have some level of integration with Web servers and services hosted on the Internet. There are many reasons why an iPad app may need to talk with a Web server. For instance, the app may need to download an image or a movie file, or maybe it needs to upload a file to a server. Other examples include calling a Web service to perform calculations, to update leaderboards, or to request data that gets displayed in your app. Whatever the reason may be, chances are good that one day you will need to incorporate Web services into your app.
This chapter gives you a basic introduction to using Web services. The focus is on the most common type of Web services in use today: RESTful Web services. This chapter does not ...
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