RxSwift: The Complexity Tradeoff

Simple Examples vs Complex Examples

Github Search Example

The “Less Than Simple” code

class CompactMapErrorViewModel {

var data: Observable<[String]>!
var error: Observable<String?>!
var dataService = DataService() init(load: Observable<Void>) {
let loading = load
.flatMapLatest { [unowned self] _ in
.timeout(.seconds(3), scheduler: MainScheduler.instance)
data = loading
.compactMap { $0.element }
error = loading
.compactMap { $0.error?.localizedDescription }

Automatic Error Retry

Automatic Timeout


So, complex… or not?

Michael Long is a Senior Lead iOS engineer at CRi Solutions, a leader in cutting edge iOS, Android, and mobile corporate and financial applications.

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