RxSwift x APIKit

関西モバイルアプリ研究会 #6 - connpass
http://kanmoba.connpass.com/event/19592/

Transcript

1. RxSwift x APIKit
2. About me 4 Ӊࠤݟ ެี (@usamik26) 4 ϑΣϯϦϧגࣜձࣾ 4 iOS ΞϓϦΤϯδχΞ
3. ࠓճͷ಺༰ 4 ࠷ۙ RxSwift ਪ͠ 4 APIKit ΋࢖ͬͯΔ 4 ૊Έ߹Θͤͯ࢖͏ͱ͍͍Α
4. ؔ࿈ : ҎલͷؔϞόͰൃදͨ͠಺༰
5. ؔ࿈ : Realm meetup Ͱൃදͨ͠಺༰
6. RxSwift ͱ͸
7. RxSwift ͱ͸ 4 Reactive Programming ͷͨΊͷϥΠϒϥϦ 4 ReacticeX ϑΝϛϦʔ 4 Rx.NET / RxJS / RxJava / ...
8. ྫɿΠϕϯτॲཧ button.rx_tap .subscribeNext { _ in // Ϙλϯ͕λοϓ͞Εͨͱ͖ͷॲཧ } .addDisposableTo(disposeBag)
9. ྫɿඇಉظॲཧ URLSession.rx_response(request) .subscribeOn(sessionScheduler) .map { (data, response) in // όοΫάϥ΢ϯυॲཧ } .observeOn(mainScheduler) .map { data in // UIॲཧ }
10. APIKit ͱ͸
11. APIKit ͱ͸ 4 Web API ௨৴ͷͨΊͷϥΠϒϥϦ 4 Swift Λੜ͔ͯ͠؆ܿʹ࣮૷Ͱ͖Δ
12. API ΫϥΠΞϯτ࣮૷ଆͷίʔυ protocol HogeAPIRequest: Request {} extension HogeAPIRequest { var baseURL: NSURL { return NSURL(...) } } struct HogeAPI { struct HogeRequest: HogeAPIRequest { typealias Response = HogeResponse } struct HogeResponse { ... } }
13. API ΫϥΠΞϯτར༻ଆͷίʔυ let request = HogeAPI.HogeRequest(...) API.sendRequest(request) { result in switch result { case .Failure(let error): // ࣦഊ࣌ͷॲཧ case .Success(let response): // ੒ޭ࣌ͷॲཧ } }
14. RxSwift x APIKit
15. APIKit Λ Rx ʹରԠ͍ͤͨ͞ 4 NSURLSession ͷ rx_response ͷϊϦͰ
16. NSURLSession ͷ࣮૷Λࢀর͢Δ func rx_response(request: NSURLRequest) -> Observable<NSData!, NSURLResponse!> { return create { observer in // request Λૹ৴ͯ͠ϨεϙϯεΛड͚औΔ if ࣦഊ { observer.on(.Error(error)) } else { observer.on(.Next(data, response)) observer.on(.Completed) } return AnonymousDisposable { /* Ωϟϯηϧॲཧ */ } } }
17. APIKit ൛ func responseFrom<T: AppAPIRequest>(request: T) -> Observable<T.Response> { return create { (observer: ObserverOf<T.Response>) in API.sendRequest(request) { result in switch result { case .Failure(let error): observer.on(.Error(error)) case .Success(let response): observer.on(.Next(response)) observer.on(.Completed) } } return AnonymousDisposable { API.cancelRequest(T) } } }
18. ࢖͍ํ let request = HogeAPI.HogeRequest(...) HogeAPI.responseFrom(request) .subscribeOn(sessionScheduler) .map { (data, response) in // όοΫάϥ΢ϯυॲཧ } .observeOn(mainScheduler) .map { data in // UIॲཧ }
19. ;Γ͔͑Γ 4 ؆୯ʹ࣮૷Ͱ͖ͨ 4 ศར 4 ͋ΕɺResult ܕͷҙຯ͸ʁ 4 Rx ͷ࣮૷ͷதͰ͔͠࢖ΘΕͳ͘ͳ͚ͬͨͲɾɾɾ 4 ΤϥʔϋϯυϦϯά͸ RxSwift Ͱ΍Ε͹͍͍