thread-safe Swift concurrency data safety atomic operations locks synchronization value semantics

URLSession Alamofire Combine Swift Concurrency Networking in Swift

Combine Alternatives RxSwift PromiseKit async/await Swift Reactivex Swift Concurrency

async let task groups Swift concurrency asynchronous programming

Sendable Data Races Swift Concurrency Thread Safety Swift Programming

actors Swift concurrency shared mutable state data races async programming

Swift Combine async/await bridging Combine reactive programming Swift concurrency