Data Usage in iOS

This course provides a comprehensive introduction to data handling in iOS applications, structured across four modules that build progressively on each other. The first module covers REST API fundamentals including HTTP methods, status codes, naming conventions, security, and authentication practices. The second module focuses on practical implementation of REST API interactions in Swift, teaching students asynchronous programming techniques for API queries, JSON parsing, and image fetching. The third module explores Core Data functionality including entities, relationships, contexts, filtering with NSPredicate, and sorting with NSSortDescriptor. Students learn to connect Core Data with SwiftUI state management for efficient data display. The final module integrates all concepts in a practical project where students build a Little Lemon Menu application that implements REST API queries, Core Data storage, and implements filtering and sorting capabilities for the menu items.