StoreKitのこれまでとこれから / StoreKit 2 from 1

StoreKitͷ͜Ε·Ͱͱ͜Ε͔Β
uzzu @ iOSDC JAPAN 2021

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ࣗݾ঺հ
ɾ@uzzu
 
ɾCookpad Inc. ٕज़෦ Ϣʔβܾࡁج൫άϧʔϓ
 
ɾݞॻ͸AndroidΤϯδχΞɺ࠷ۙ͸Rails
 
ɾલ৬͸εϚʔτϑΥϯήʔϜ։ൃ
 
ɾझຯ͸VR

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IAPؔ࿈ͷ͓࢓ࣄ(1/2)
https://speakerdeck.com/uzzu/xin-gui-apurikai-fa-wozhi-eruyuzajue-ji-ji-pan

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できた！(iOS クックパッド 2021/03)

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🎊StoreKit2🎊
WWDC21

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ΞδΣϯμ
ɾΞϓϦ಺՝࣮ۚ૷ͷ֓ཁ
 
ɾStoreKitͱStoreKit2ͷҧ͍(ߪೖɾ෮ݩػೳΛ௥͍ͳ͕Β)
 
ɾStoreKit2Ͱ৽ͨʹͰ͖Δࣄ
 
ɾ·ͱΊ

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࿩͞ͳ͍ࣄ
● Promoting IAPɺSubscription Offerɺ
 
Family Sharing SubscriptionͳͲͷOptionalͳܾࡁػೳ

● ΞϓϦ಺՝ۚҎ֎ͷStoreKitͷػೳ(SKOverlay౳)

● App Store Server APIͷৄࡉ

● async/awaitͷৄࡉ

● StoreKitͱStoreKit2͕ڞଘͨ͠৔߹ͷڍಈ

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஫ҙࣄ߲ ⚠
ɾStoreKit2͸ݱࡏsandbox՝ۚ΋ࣦഊ͢Δ(iOS15 beta8)
 
ɹStoreKit TestingΛར༻͢ΔࣄͰಈ࡞͠·͢
 
ɹhttps://developer.apple.com/forums/thread/681904

ɾStoreKit Testing ར༻ʹ͓͍ͯXcode 13 beta 5࣌఺Ͱ
 
ɹچStoreKitͱͷڠௐಈ࡞ͷ֬ೝ͕औΕͳ͍
 
ɹ=> ڞଘͨ͠৔߹ͷಈ࡞͕Ͳ͏ͳΔͷ͔౳ࡉ͔͍ॴ͸ݱঢ়෼͔Βͳ͍
 
ɾ࢖͑ΔΑ͏ʹͳΔͷ͸ iOS15 ʙ (async/await backport ૣ͘དྷͯ͘Εʙ)
 
ɾಈ͘Α͏ʹͳͬͨΒ࠶ݕূ͠·͠ΐ͏

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ΞδΣϯμ
 
 
 
ɾ·ͱΊ

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ΞϓϦ಺՝ۚͷ࣮૷ͷ֓ཁ(1/2)
ɾΞϓϦ಺Ͱσδλϧίϯςϯπͷൢച΍ఆظߪಡػೳΛ
 
ɹఏڙ͢Δࡍʹ͸ΞϓϦ಺՝ۚͷ࣮૷͕ඞཁ

ɾΞϓϦ಺՝ۚͷ঎඼λΠϓ͸4छ
 
ɹফ໣ܕΞΠςϜ(Consumable)
 
ɹඇফ໣ܕΞΠςϜ(Non-Consumable)
 
ɹࣗಈߋ৽αϒεΫϦϓγϣϯ(Auto-Renewable Subscription)
 
ɹඇࣗಈߋ৽αϒεΫϦϓγϣϯ(Non-Renewing Subscription)

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ΞϓϦ಺՝ۚͷ࣮૷ͷ֓ཁ(1/2)
ɾͦΕͧΕఏڙ͢Δҝʹ࣮૷ඞਢͳػೳ
 
ɹߪೖ
 
ɹ෮ݩ
 
ɾͦͷଞɺඞਢͰ͸ͳ͍͕ඞཁʹԠ࣮ͯ͡૷ΛٻΊΒΕΔػೳ
 
ɹPromoting IAP .. App Store ΞϓϦ্Ͱͷ঎඼ͷϓϩϞʔγϣϯɺߪೖ
 
ɹSubscription Offer .. ೚ҙͷϢʔβʹ௿Ձ֨Ͱఏڙ͢Δ
 
ɹFamily Sharing Subscription .. ϑΝϛϦʔڞ༗ͷػೳͰఆظߪೖΛڞ༗͢Δ

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ΞδΣϯμ
 
 
 
ɾؔ࿈ͯ͠AppStore Server API

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ߪೖɾ෮ݩͷઆ໌ʹೖΔલʹ…ॳظԽʹ͍ͭͯ
ɾچStoreKit͸ΞϓϦ಺՝ۚͷ࣮૷ʹඞཁͳ
 
ɹ֤छ௨஌Λड͚औΔҝͷObserverͷ࣮૷ͱొ࿥ॲཧ
 
ɹ͕ඞཁɻຊεϥΠυͰ͸͜ΕΛศ্ٓॳظԽͱݺͿ

ɾొ࿥ॲཧ .. SKPaymentTransactionObserverΛ࣮૷ͨ͠
 
ɹΫϥεͷΠϯελϯεΛSKPaymentQueueʹొ࿥

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class AppDelegate: UIResponder, UIApplicationDelegate {

private var iapObserver: SKPaymentTransactionObserver = IAPObserver()

func application(

_ application: UIApplication,

didFinishLaunchingWithOptions launchOptions:

[UIApplication.LaunchOptionsKey : Any]? = nil

) -> Bool {

SKPaymentQueue.default().add(iapObserver)

return true

}

func applicationWillTerminate(_ application: UIApplication) {

SKPaymentQueue.default().remove(iapObserver)

}

}

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ॳظԽʹ·ͭΘΔτϥϒϧ
 
ɹɾΞϓϦىಈ࣌ͷॳظԽॲཧ(Ϣʔβೝূetc…)͕
 
ɹɹऴΘͬͯͳ͍ঢ়ଶͰObserverॲཧͯ͠͠·͏
 
ɹɾ௨஌͕͍ͭདྷͯ΋ྑ͍Α͏ͳ࣮૷ߟྀ͕͞Ε͍ͯͳ͍
 
ɹɾSKPaymentQueue΁ͷremove/addΛ͓ͯ͠Βͣظ଴ͨ͠௨஌͕དྷͳ͍
 
ɹɾ3rd party ϥΠϒϥϦ͕Observerొ࿥Λ͓ͯ͠Γ
 
ɹɹࣗΞϓϦͷObserverʹظ଴ͨ͠௨஌͕དྷͳ͍

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StoreKit 2͸ॳظԽ͸ෆཁ🎉🎉🎉

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購⼊処理フロー
購⼊ボタンを押す
注⽂番号を発⾏
商品情報取得決済レシート送信
 
+
 
注⽂を有効にして
 
購⼊した商品を
 
付与する
レシート検証
 
最新レシート
 
取得
購⼊情報を
 
更新

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購⼊処理フロー/商品情報の取得 .. 旧StoreKitの場合
public typealias ProductsRequestResult = Result

public typealias ProductsRequestCompletion = (ProductsRequestResult) -> Void

public class ProductsRequest: NSObject, SKProductsRequestDelegate {

private var completion: ProductsRequestCompletion?

private var request: SKProductsRequest

init(_ productIDs: Set) {

self.request = SKProductsRequest(productIdentifiers: productIDs)

}

public func send(completion: @escaping ProductsRequestCompletion) {

self.completion = completion

self.request.delegate = self

self.request.start()

}

public func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {

if let completion = completion {

self.completion = nil

completion(.success(response))

}

}

public func request(_ request: SKRequest, didFailWithError error: Error) {



completion(.failure(error))

}

}

}

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購⼊処理フロー/商品情報の取得 .. 旧StoreKitの場合
public typealias ProductsRequestResult = Result

public typealias ProductsRequestCompletion = (ProductsRequestResult) -> Void

public class ProductsRequest: NSObject, SKProductsRequestDelegate {

private var completion: ProductsRequestCompletion?

private var request: SKProductsRequest

init(_ productIDs: Set) {

self.request = SKProductsRequest(productIdentifiers: productIDs)

}

public func send(completion: @escaping ProductsRequestCompletion) {

self.completion = completion

self.request.delegate = self

self.request.start()

}

public func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {



completion(.success(response))

}

}

public func request(_ request: SKRequest, didFailWithError error: Error) {



completion(.failure(error))

}

}

}
ɹɾdelegate method͕ݺ͹ΕΔεϨου͸อূ͞Ε͍ͯͳ͍
 
ɹɹ=>ϝΠϯεϨουͰݺ͹ΕΔલఏͰ͍Δͱ
 
ɹɹɹޙଓॲཧ͕Ϋϥογϡ͢Δ(iOS 13.1ʙ)

ɹɾ঎඼λΠϓ͕෼͔Βͳ͍
 
ɹɹ=>productIdentifierͷ໋໊ΛϧʔϧԽ͢Δ౳ɺରࡦ͕ඞཁ

ɹɾ঎඼৘ใऔಘ͢Δ͚ͩͳͷʹ
 
ɹɹίʔυྔ͕ଟ͍(هࡌͷίʔυͰ͸࣮ࡍ͸଍Γͳ͍)

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購⼊処理フロー/商品情報の取得 .. StoreKit2の場合
let products = try await Product.products(for: ["productId"])
΋ͪΖΜ঎඼λΠϓ΋औಘՄೳ (Product.type)
🥳🥳🥳🥳🥳🥳🥳🥳🥳
🥳🥳🥳🥳🥳🥳🥳🥳🥳

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購⼊処理フロー/決済 .. 旧StoreKitの場合
let payment = SKMutablePayment(product: product)

// 様々オプションを指定

SKPaymentQueue.default().add(payment)
↓ SKPaymentTransactionObserverの以下のdelegateが呼ばれる
func paymentQueue(
 
_ queue: SKPaymentQueue,
 
updatedTransactions transactions: [SKPaymentTransaction]) {

// :

}
↓SKPaymentTransaction.transactionState == .purchasing でやってくる
↓SKPaymentTransactionObserverの同じdelegateが呼ばれる
↓IAP決済ダイアログが出てくる。ユーザが決済を⾏う
↓SKPaymentTransaction.transactionState == .purchased でやってくる
↓レシート送信、商品付与
↓商品付与後、SKPaymentQueue.default().finishTransaction(transaction)

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↓商品付与後、
購⼊処理フロー/決済 .. 旧StoreKitの場合
let payment = SKMutablePayment(product: product)

// 様々オプションを指定

SKPaymentQueue.default().add(payment)
func paymentQueue(
 
 

// :

}
↓SKPaymentTransaction.transactionState == .purchasing でやってくる
↓SKPaymentTransactionObserverの同じdelegateが呼ばれる
↓IAP決済ダイアログが出てくる。ユーザが決済を⾏う
↓SKPaymentTransaction.transactionState == .purchased でやってくる
↓レシート送信、商品付与
SKPaymentQueue.default().finishTransaction(transaction)
ɹɾupdatedTransactionsʹ͸
 
ɹɹfinish͞Ε͍ͯͳ͍શͯͷTransaction͕΍ͬͯ͘Δ
 
ɹɹ=>ݱࡏߪೖதͷ঎඼͕Կ͔ΛͲ͔͜͠ΒͰ͓࣋ͬͯ͘
 
ɹɹɹ ඞཁ͕͋Δ
 
ɹɾAsk To Buy(ϖΞϨϯλϧίϯτϩʔϧػೳ)ͷΑ͏ʹ
 
ɹɹܾࡁ׬ྃ௨஌͕όοΫάϥ΢ϯυ͔Β΍ͬͯ͘Δέʔε
 
ɹɹ͕͋ΔͷͰɺͦͷߟྀ΋ඞཁ

ɹɾ΋ͪΖΜɺ঎඼λΠϓશͯͷTransaction͕΍ͬͯ͘Δ
 
ɹɹ=>঎඼λΠϓΛෳ਺ѻ͏Α͏ʹͳͬͨΒ
 
ɹɹɹ Observer͕େมͳࣄʹͳΔ
 
ɹɾ্هΛ౿·্͑ͨͰObserverͱ(Rx|Combine)ͱܨ͗͜Ή
 
ɹɹͷ͸Ͱ͖ͳ͘͸ͳ͍͕େม

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購⼊処理フロー/決済 .. StoreKit2の場合
let result = try await product.purchase()
🎉🎉🎉🎉🎉🎉🎉🎉🎉
🎉🎉🎉🎉🎉🎉🎉🎉🎉
Transaction#finish() ͸๨Εͣʹ

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購⼊処理フロー/レシート検証、最新レシート取得 .. 旧StoreKitの場合
let base64EncodedReceipt: String?

if let appStoreReceiptURL = Bundle.main.appStoreReceiptURL,

FileManager.default.fileExists(atPath: appStoreReceiptURL.path) {

base64EncodedReceipt = try? Data(

contentsOf: appStoreReceiptURL,

options: .alwaysMapped)

.base64EncodedString()

} else {

base64EncodedReceipt = ""

}
↓注⽂番号と合わせてサーバに送信
↓POST https://buy.itunes.apple.com/verifyReceipt
↓最新レシート情報を元に商品付与、注⽂を有効にする
↓後続処理へ…

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購⼊処理フロー/レシート検証、最新レシート取得 .. 旧StoreKitの場合
let base64EncodedReceipt: String?

if let appStoreReceiptURL = Bundle.main.appStoreReceiptURL,

FileManager.default.fileExists(atPath: appStoreReceiptURL.path) {

base64EncodedReceipt = try? Data(

contentsOf: appStoreReceiptURL,

options: .alwaysMapped)

.base64EncodedString()

} else {

base64EncodedReceipt = ""

}
↓注⽂番号と合わせてサーバに送信
↓POST https://buy.itunes.apple.com/verifyReceipt
↓最新レシート情報を元に商品付与、注⽂を有効にする
↓後続処理へ…
ɹɾϨγʔτݕূࣗମ͸ΞϓϦ୯ମͰ΋Ͱ͖Δ͕
 
ɹɹ؆қͳ΋ͷͳͷͰجຊతʹ͸࢖Θͳ͍
 
ɹɾաڈͷಉΞϓϦͰͷߪೖ৘ใ͕શؚͯ·ΕΔҝ
 
ɹɹϖΠϩʔυαΠζ͕૿Ճ
 
ɹɹࣗಈߋ৽αϒεΫϦϓγϣϯͳΒߋ৽݄෼૿͑Δ
 
ɹɾϖΠϩʔυ͕େ͖͘ͳΔ΄ͲɺverifyReceiptͷ
 
ɹɹϨεϙϯε΋஗͘ͳΔɻΑ͘500Λు͘

ɹɹ=>exclude_old_transactions ͳΦϓγϣϯͰ
 
ɹɹɹߴ଎Խ͕ਤΕΔ͕
 
ɹɹɹݹ͍ߪೖ৘ใ΋ඞཁͳϢʔεέʔε͸
 
ɹɹɹ࣮ӡ༻্΅ͪ΅ͪ͋Δ

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購⼊処理フロー/レシート検証、最新レシート取得 .. StoreKit2の場合
JWS化！レシート検証でサーバ間通信不要
 
巨⼤なレシート送らなくてもOK(代わりにJWS)
 
AppStore Server APIで個別にTransaction単位で問合せ可能に
🍻🍻🍻🍻🍻🍻🍻🍻🍻
🍻🍻🍻🍻🍻🍻🍻🍻🍻
JWSがどれくらいのサイズになるだろうか…🤔

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෮ݩͱ͸…ʁ
ɾIAPܾࡁ͸ߦΘΕ͍ͯΔ͕঎඼͕෇༩͞Ε͍ͯͳ͍
 
ɹϢʔβ΁ͷٹࡁાஔ
 
ɹ- ߪೖΤϥʔ͕ൃੜͨ͠··ܾࡁը໘͔Β཭୤ͯ͠͠·ͬͨ
 
ɹ- ػछมߋޙʹݩʑར༻͍ͯͨ͠ঢ়ଶʹ໭͍ͨ͠
 
ɹ- ߪೖࡁΈͷ঎඼Λෳ਺୺຤Ͱར༻͍ͨ͠

ɾܾࡁ৘ใΛ෮ݩ͢Δػೳ͕ఏڙ͞Ε͍ͯΔͷͰ
 
ɹͦΕΛར༻ͯ͠෮ݩॲཧΛߦ͏
 

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෮ݩͱ͸…ʁ
ɾফ໣ܕΞΠςϜͷ৔߹
 
ɹ=> ະॲཧͳܾࡁ৘ใ͕͋Ε͹ɺͦΕΛߪೖॲཧʹԊͬͯॲཧͯ͠঎඼Λ෇༩
 
ɾඇফ໣ܕΞΠςϜɺࣗಈߋ৽αϒεΫϦϓγϣϯ
 
ɹඇࣗಈߋ৽αϒεΫϦϓγϣϯͷ৔߹
 
ɹ=> ະॲཧͳܾࡁ৘ใ͕͋Ε͹ɺͦΕΛߪೖॲཧʹԊͬͯॲཧͯ͠঎඼Λ෇༩
 
ɹ=> ॲཧࡁΈͰ͋Ε͹
 
ɹɹϩάΠϯ͍ͯ͠ΔϢʔβΛݩʑར༻͍ͯͨ͠Ϣʔβʹ੾Γସ͑Δ
 
ɹɹ·ͨ͸ ݩʑར༻͍ͯͨ͠Ϣʔβʹ౷߹ͭͭ͠ϩάΠϯϢʔβΛ੾Γସ͑Δ
 
ɹɹ·ͨ͸ ߪೖ৘ใʹ߹ΘͤͯݱࡏͷϢʔβʹ঎඼Λ෇͚ସ͑Δ
 
ɹɹͳͲɺཁ݅ʹ͋Θͤͯ…

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復元処理フロー
復元操作をする
 
or ⾃動で復元
レシート送信
 
+
 
購⼊情報を
 
復元する為の
 
あれこれ
 
決済情報を
 
復元する
レシート検証
 
最新レシート
 
取得
購⼊情報を
 
復元する為の
 
あれこれ

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復元処理フロー/決済情報の復元 .. 旧StoreKitの場合
SKPaymentQueue.default().restoreCompletedTransactions()
func paymentQueue(
 
 

// :

}
↓SKPaymentTransaction.transactionState == .restored でやってくる
↓アプリとして必要な復元処理を実施
↓復元処理を実施後SKPaymentQueue.default().finishTransaction(transaction)
func paymentQueueRestoreCompletedTransactionsFinished(_ queue: SKPaymentQueue) {

// :

}

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復元処理フロー/決済情報の復元 .. 旧StoreKitの場合
SKPaymentQueue.default().restoreCompletedTransactions()
func paymentQueue(
 
 

// :

}
↓SKPaymentTransaction.transactionState == .restored でやってくる
↓アプリとして必要な復元処理を実施
↓復元処理を実施後SKPaymentQueue.default().finishTransaction(transaction)
func paymentQueueRestoreCompletedTransactionsFinished(_ queue: SKPaymentQueue) {

// :

}
ɹɾ·ͨupdatedTransactions…
 
ɹɹ=>ߪೖॲཧͱ෮ݩॲཧ͸ผ΋ͷͳͷͰ
 
ɹɹɹͪΌΜͱtransactionStateΛݟΔ
 
ɹɾະॲཧͳܾࡁͷ৔߹͸ߪೖॲཧͱಉ౳ͷॲཧΛ࣮ࢪ͢Δ
 
ɹɹඞཁ͕͋Δ

ɹɾ΋ͪΖΜɺ঎඼λΠϓશͯͷTransaction͕΍ͬͯ͘Δ
 
ɹɾRxɺCombineɺ΢ο…

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復元処理フロー/決済情報の復元 .. StoreKit2の場合
let transaction = await product.latestTransaction

let result = await product.currentEntitlement

let result = await Transaction.latest(for: "productId")

let results = await Transaction.currentEntitlements

// etc…
👏👏👏👏👏👏
👏👏👏👏👏👏
SKReceiptRefreshRequest૬౰ͷ΋ͷ͸
 
await AppStore.sync()

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ΞδΣϯμ
 
 
 
ɾ·ͱΊ

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StoreKit2Ͱ৽ͨʹͰ͖Δࣄ
ɾTransactionͷৄࡉ(unified_receipt૬౰)Λ
 
ɹ༰қʹࢀরͰ͖Δ
 
ɹچStoreKitͰ΋ग़དྷ͕ͨ…
 
ɹɹηΩϡΞͱ͸ݴ͍೉͍΍Γํͩͬͨ
 
ɹɹܕ҆શʹࢀর͢ΔҝʹखલͰؤுͬͯσίʔυ͢Δ
 
ɹɹඞཁ͕͋ͬͨ

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StoreKit2Ͱ৽ͨʹͰ͖Δࣄ
ɾฦۚϦΫΤετΛ࣮૷Ͱ͖Δ
 
ɹ
返⾦リクエストボタン
を押す
返⾦リクエスト
返⾦リクエスト
通知
購⼊情報を
 
提出
返⾦と判断されれば
 
返⾦

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ɾiOS15ະຬ
 
ɹ=>async/await backport ͕དྷͨΒมΘΔ͔΋…
 
ɾApple School Manager΍Apple Business Manager্Ͱ
 
ɹVolume Purchase ProgramΛར༻͍ͯ͠Δ৔߹
 
ɾΞϓϦͷ༧໿ൢചػೳΛར༻͢Δ৔߹
 
ɾաڈʹ༗ྉΞϓϦ͕ͩͬͨϑϦʔϛΞϜϞσϧʹ
 
ɹҠߦͨ͠ΞϓϦͷ৔߹ɺ·ͨ͸ͦͷٯͷ৔߹
 
ɹ=>StoreKit2ʹ·ͩAPI (preorder_date) ͕ଘࡏ͠ͳ͍
StoreKit2͕࢖͑ͳ͍έʔε

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ΞδΣϯμ
 
 
 
ɾ·ͱΊ

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·ͱΊ
● ͨͩͰܾ͑͞ࡁॲཧ͸ෳࡶͳॴʹ
 
چStoreKitͷSKPaymentTransactionObserverΛத৺ͱͨ͠ઃܭ͕
 
͞Βʹෆඞཁͳෳࡶ͞ΛੜΜͰ͠·͍ͬͯͨ
 
- ߪೖɺ෮ݩॲཧ࣮૷ʹ͓͚ΔόοΫάϥ΢ϯυॲཧͷߟྀ
 
- ঎඼ͷछผຖͷద੾ͳॲཧͷҧ͍
 
- ߋʹ௥Ճػೳ(Promoting IAP, Subscription Offer, etc…)Λར༻͢Δ
 
શ෦ࡌͤͨঢ়ଶͷSKPaymentTransactionObserverΛ૝૾ͯ͠Έ·͠ΐ͏
 
ɹͱͯ΋͔ΜͨΜͱ͸ݴ͍೉͍ɻਅ໘໨ʹ޲͖߹͏ͱઐ໳৬͕ඞཁͳϨϕϧ
 
ɹ3rd partyϥΠϒϥϦΛ࢖͍ͨ͘ͳΔؾ࣋ͪ΋෼͔Δ

● StoreKit2Ͱ͸Observerύλʔϯ͸ഇࢭ͞Εɺasync/await͕෼͔Ε͹෼͔Δ͙Β͍ͷ
 
ۙ୅Խ͕͞Ε͍ͯΔ
 
࣮ʹ…࣮ʹγϯϓϧͳAPIʹͳͬͨ
 
։ൃ͢ΔΞϓϦʹඞཁͳܾࡁॲཧͷ࣮૷ʹूதͰ͖ΔΑ͏ʹͳͬͨɻૣ͘࢖͍͍ͨ…ɻ

● App Store Server΋(·ͩ࢖͑ͳ͍ͷͰͲ͏ͳΔ͔෼͔Βͳ͍͚Ͳ)ૣ͘࢖͍͍ͨ…ɻ

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ࢀߟ
ɾMeet StoreKit 2 @ WWDC21
 
ɹhttps://developer.apple.com/videos/play/wwdc2021/10114/

ɾManage in-app purchases on your server @ WWDC21
 
ɹhttps://developer.apple.com/videos/play/wwdc2021/10174/

ɾSupport customers and handle refunds @ WWDC21
 
ɹhttps://developer.apple.com/videos/play/wwdc2021/10175

ɾIn-App Purchase
 
ɹhttps://developer.apple.com/documentation/storekit/in-app_purchase

ɾImplementing a Store In Your App Using the StoreKit API
 
ɹhttps://developer.apple.com/documentation/storekit/in-app_purchase/implementing_a_store_in_your_app_using_the_storekit_api

ɾApp Store Server API
 
ɹhttps://developer.apple.com/documentation/appstoreserverapi

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StoreKitのこれまでとこれから / StoreKit 2 from 1

StoreKitのこれまでとこれから / StoreKit 2 from 1

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