Introducing Ionic 2 (Video 12)

The video tutorial addresses the challenge of making cross-domain API calls by using JSONP instead of HTTP. It guides viewers through creating a custom service in Ionic, implementing JSONP, and handling promises and observables. The tutorial also demonstrates component-level dependency injection and concludes with a summary and preview of upcoming topics.

What is the significance of using URLSearchParams in the search method?

What are the two choices for handling promises in the context of API calls?

What is the role of the 'view providers' in making the iTunes service available?