iOS Networking Use URLSession with async/await and structured concurrency for ordinary HTTP, REST, uploads, downloads, and streaming. Use Network.framework for lower-level protocols and delegate/task APIs for durable background transfers. Contents - Core URLSession async/await - API Client Architecture - Error Handling - Pagination - Network Reachability - Configuring URLSession - App Transport Security (ATS) - Common Mistakes - Review Checklist - References Core URLSession async/await URLSession gained native async/await overloads in iOS 15. Prefer these for foreground data, upload, download…