Web API introduction for Objective-C? [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.

---

We don’t allow questions seeking recommendations for books, tools, software libraries, and more. You can edit the question so it can开发者_运维问答 be answered with facts and citations.

Closed 4 years ago.

Improve this question

I've never accessed a web API, and I'm looking for a thorough introduction. Specifically, I want to access Google APIs from a Mac OS X application. I can successfully find similar code, copy and paste, but I really want to understand how this all works, and can not find any beginner text of the subject.

---

Apple's introduction to using NSURLConnection is here, and there's some Apple sample code here. Google also has a gdata-objectivec-client client library, which I've never used, but sounds like a drop-in solution to accessing Google's data services. The Google project page has links to overview slides, an introduction and example applications.