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RxSwiftͰTwitterͷ
ϥΠϒϥϦΛ࡞ͬͯΔ
(͍͍ͩͨ)৽ଔΤϯδχΞ͚ٕज़ަྲྀձ vol.6
on 2016/03/12
@mihyaeru21
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͓લɺ୭Α
• ϛώϟΤϧ @mihyaeru21
• Swift͓͡͞Μ
• Kotlin͓͡͞Μ
• ͱ͖Ͳ͖PerlϚϯ
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RxSwift + Twitter
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RxTwift
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RxTwift
• RxSwiftϕʔε
• ґଘؚΊͯSwiftͷΈ
• ܕܕܕ
• https://github.com/mihyaeru21/RxTwift
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͖ͯͱ͏ͳઆ໌
• TwitterͷAPIͱରԠͨ͠ΠϯλϑΣʔε
• ApiΫϥεɺ͍ͣΕRestApiʹ໊લ͕มΘΓͦ͏
let api = RxTwift.Api(…)
api.get.statuses.homeTimeline()
GET /statuses/home_timeline
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͖ͯͱ͏ͳઆ໌
• શͯͷAPIϝιουObservableΛฦ͢
api.get.statuses.homeTimeline()
Observable
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͖ͯͱ͏ͳઆ໌
• ObservableͷதJSONͰͳ͍ΦϒδΣΫτ
api.get.statuses.homeTimeline()
.subscribeNext { tweet in
print("\(tweet.user.name)\n\(tweet.text)")
}
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͖ͯͱ͏ͳઆ໌
• ObservableͷதJSONͰͳ͍ΦϒδΣΫτ
api.get.statuses.homeTimeline()
.subscribeNext { tweet in
print("\(tweet.user.name)\n\(tweet.text)")
}
ίʔυิͰ͖Δͤʂʂʂ
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ͪΐͬͱෳࡶͳྫ
• ͋ΔϦετΛऔಘͯ͠
• ͦͷϦετͷϢʔβʢσϑΥϧτ20ਓʣ
• ͷ͏ͪɺID͕ۮͷਓͷʢҙຯෆ໌ͳૢ࡞͚ͩͲྫ͔ͩΒڐͯ͠ʣ
• λΠϜϥΠϯΛऔಘͯ͠ʢAPIΛୟ͖·͘Δʣ
• දࣔ
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Θʔɺ͍͢͝
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தͷ
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தͷ
• OAuth
• ΦϒδΣΫτϚοϐϯά
• Rx
• ެ։APIϝιουͷྫ
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OAuth
• OAuthΛSwiftͰ࣮͍ͯ͠ΔϥΠϒϥϦ͋Δ
• https://github.com/OAuthSwift/OAuthSwift
• ͦΜͳʹଟػೳඞཁͳ͔ͬͨ
• ετϦʔϛϯάʹରԠͰ͖ͳͦ͏
• ͱ͍͏Θ͚Ͱࣗ࡞
• HMAC-SHA1͚ͩCryptoSwiftʹґଘ
• https://github.com/krzyzanowskim/CryptoSwift
• ඞཁͳػೳΑΓଟػೳ͗͢Δ͔Βґଘ͔Β֎͍ͨ͠
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OAuth: ೝূͷϔομΛ࡞Δ෦
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OAuth
• Ϧετॲཧͱ͔จࣈྻॲཧ͕݁ʹॻ͖͍͢
• ʢൺֱରɿObjective-Cʣ
• ྫ֎ॲཧnilΛฦ͚ͩ͢ͷखൈ͖
• खൈ͖͚ͩͲ͜Ε͘Β͍ͷॲཧʹे
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ΦϒδΣΫτϚοϐϯά
• Argo: https://github.com/thoughtbot/Argo
• Swift͚ϥΠϒϥϦͰ࠷γϯϓϧʢͳίʔυʹͳΔ
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ΦϒδΣΫτϚοϐϯά
• README͔ΒҾ༻
struct User {
let id: Int
let name: String
let email: String?
let role: Role
let companyName: String
let friends: [User]
}
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ΦϒδΣΫτϚοϐϯά
• README͔ΒҾ༻
extension User: Decodable {
static func decode(j: JSON) -> Decoded {
return curry(User.init)
<^> j <| "id"
<*> j <| "name"
<*> j <|? "email"
<*> j <| "role"
<*> j <| ["company", "name"]
<*> j <|| "friends"
}
}
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ΦϒδΣΫτϚοϐϯά
• มͳه߸ͱ͔ʹ͍ͭͯྑ͍ղઆهࣄ͕͋Δ
• http://qiita.com/koher/items/300d89136b515291dac4
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ΦϒδΣΫτϚοϐϯά
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ΦϒδΣΫτϚοϐϯά
͕ࣜෳࡶ͗ͯ͢ίϯύΠϧͰ͖Ͷʔ͔Β
ׂͯͪ͠ΐ
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ΦϒδΣΫτϚοϐϯά
ࠅ͍͚Ͳಈ͘…
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Rx
• RxSwift
• https://github.com/ReactiveX/RxSwift
• ࠷ۙྲྀߦΓʁͷFRP
• http://ninjinkun.hatenablog.com/entry/introrxja
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Rx
• Observable
• 1ͭͷPromiseʹෳͷΛྲྀͤͯߴػೳԽͨ͠ײ͡
• ObservableΛ࡞ͬͨஈ֊ͰԿ͠ͳ͍
• ୭͔ʹsubscribe͞ΕΔ͜ͱʹΑͬͯىಈ
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Rx: RxTwiftͰ
• APIڞ௨ͷϦΫΤετൃߦ෦
• Observable
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Rx: RxTwiftͰ
• JSONจࣈྻΛදݱ͢ΔNSDataΛσίʔυ
• ArgoʹΑͬͯΦϒδΣΫτʹม
• Observable
• Observable
• etc…
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ެ։APIϝιουͷ࣮ྫ
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ެ։APIϝιουͷ࣮ྫ
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client.get(), client.post()
• RxTwiftʹ͓͚ΔObservableͷݯྲྀ
• Observable.create()ʹΑͬͯੜ
• தෳࡶ͔ͩΒׂѪ
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ެ։APIϝιουͷ࣮ྫ
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Dictionary.createWithNotNil
• nilͳཁૉΛল͍ͨDictionaryΛ࡞Δ
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ެ։APIϝιουͷ࣮ྫ
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Observable.decode()
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ฦΓͷܕͰΦʔόʔϩʔυ
ҧ͍͜Ε͚ͩ
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ϚοϐϯάରͷܕฦΓ͔Βਪ
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ϚοϐϯάରͷܕฦΓ͔Βਪ
͜ΕʹΑͬͯͲͷΦϒδΣΫτ
ʹϚοϐϯά͢Δ͔ܾ·Δ
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ϚοϐϯάରͷܕฦΓ͔Βਪ
͜ΕʹΑͬͯͲͷΦϒδΣΫτ
ʹϚοϐϯά͢Δ͔ܾ·Δ
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Observable.flatMapSequence()
• Observable<[T]> Λ Observable ʹม
• ετϦʔϜͱͯ͠ѻ͍ͯ͘͢͠Δ
• ʢ͜ͷมແ͔͘͢…ʣ
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decode()ͷฦΓͷਪ
• flatMapSequence()
• Observable<[Tweet]> -> Observable
• decode()
• Observable -> Observable<[Tweet]>
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ݱঢ়Ͱ͖͍ͯΔൣғ
• OAuthೝূʹΑΔ௨৴
• GET/POST status/* ͷAPI
• GET lists/* ͷAPI
• ࣮ࡁΈAPIͷϨεϙϯεʹରԠ͢ΔΦϒδΣΫτ
• TwitterଆΤϥʔʹରԠ͢ΔΦϒδΣΫτ
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ࠓޙ࣮͢Δൣғ
• ೝূͷτʔΫϯऔಘॲཧ
• ະ࣮ͷREST API
• ετϦʔϛϯάAPI
• ύϥϝʔλʹԠͯ͡ϨεϙϯεJSONͷߏ͕
มΘΔ͜ͱͷରԠ
• ະ࣮ͷΦϒδΣΫτ