StoreKit2を使った課金システムのフルリニューアル

StoreKit2Λ࢖ͬͨ

ΞϓϦ಺՝ۚͷ

ϑϧϦχϡʔΞϧ

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ࣗݾ঺հ
● גࣜձࣾCAM த్Ͱೖࣾ

● iOS ΤϯδχΞ 5೥໨

● CAMͰ͸ɺLDHɺΞΠυϧɺ઎͍ɺ৽
R25ͳͲɺΤϯλϝࣄۀʹैࣄ

● λοϓϧʹδϣΠϯͯ͠໿1೥
ҏ౻ ༔ฏ

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ओͳ಺༰
● λοϓϧʹ͍ͭͯ

● λοϓϧͷ՝ۚʹ͍ͭͯ

● ϑϧϦχϡʔΞϧͷഎܠ

● ϑϧϦχϡʔΞϧ·Ͱͷ௕ظϓϥϯ

● StoreKit2

● όοΫΤϯυଆͷରԠ

● ϦϦʔε࣌ʹରԠͯ͠Α͔ͬͨ͜ͱ

● ϦϦʔεޙʹ໌Β͔ʹͳࣦͬͨഊ...

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ฐࣾͷԣ࣠૊৫ʹ͍ͭͯ

גࣜձࣾCAM → גࣜձࣾλοϓϧ

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ԣ࣠૊৫ʹ͍ͭͯ
αΠόʔΤʔδΣϯτάϧʔϓ಺ʹάϧʔϓ

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λοϓϧʹ͍ͭͯ

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λοϓϧʹ͍ͭͯ
● ϚονϯάΞϓϦͷʮλοϓϧʯ͸ɺ2014೥5݄ʹαʔϏεΛ։࢝ɻ

● ࣗ෼ͷझຯ΍ߦͬͯΈ͍ͨσʔτεϙοτΛ͖͔͚ͬʹɺ࿀ͷ૬ख͕ݟ͚ͭΒΕ
Δࠃ಺࠷େن໛ͷϚονϯάΞϓϦɻ

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9/1ʹɺϚονϯάΞϓϦͷTVCM͕ղې͞Ε·ͨ͠

TVCMͷ์ө͸৚͕݅ݫ͍͠Β͍͠...

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λοϓϧͷ՝ۚʹ͍ͭͯ

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λοϓϧͷ՝ۚʹ͍ͭͯ - ௨ৗ
ʻফ໣ܕͷϙΠϯτʼ ʻαϒεΫͷγϯϓϧɺελϯμʔυϓϥϯʼ

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λοϓϧͷ՝ۚʹ͍ͭͯ - ηʔϧࢪࡦ

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ϑϧϦχϡʔΞϧͷഎܠ

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● ՝ۚͷϚΠΫϩαʔϏεԽʢෳࡶͩͬͨγεςϜΛγϯϓϧʹ͍ͨ͠ʣ

● ՝ۚج൫ͷ৐Γ׵͑ʢαΠόʔΤʔδΣϯτͷ՝ۚج൫Λ࢖͍͍ͨʣ

● App Store Server Notifications ͷಋೖʢVersion 2ʣ

ΞϓϦ಺՝ۚʹ͓͍ͯߪೖɺࣗಈߋ৽ɺαϒεΫఀࢭͳͲͷΠϕϯτΛαʔόʔʹ

ϦΞϧλΠϜͰ௨஌Ͱ͖Δػೳɻ
όοΫΤϯυଆ

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● StoreKit2 ͷಋೖ

● KMMɺBFFΛ࢖ͬͨ՝ۚؔ࿈ͷڞ௨ԽʢAndroidͱ՝ۚϩδοΫΛڞ௨Խ͍ͨ͠ʣ

● ͓ࢼ͠ΦϑΝʔɺϓϩϞʔγϣϯΦϑΝʔͷಋೖ
iOSଆ

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ϑϧϦχϡʔΞϧͷ௕ظϓϥϯ

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ϑϧϦχϡʔΞϧͷ௕ظϓϥϯʢ໿4ϲ݄ؒʣ
՝ۚͷϚΠΫϩαʔϏεԽ

KMMɺBFFԽ

※ StoreKit1 ͷঢ়ଶ
Step1 Step2 Step3
StoreKit2ͷಋೖ ͓ࢼ͠ΦϑΝʔ

ϓϩϞʔγϣϯΦϑΝʔ

ͷಋೖ
େ͖ͳࢪࡦɺ͔͠΋՝ۚͷͨΊɺ3ͭʹ෼͚ͨ

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StoreKit2

γϯϓϧͳίʔυ

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StoreKit2 - γϯϓϧͳίʔυ
ϓϩμΫτ৘ใͷऔಘ - Product.products()
● Կ΋४උ͸ඞཁͳ͍ɻͨͬͨɺ1ߦͷίʔυɻ

● ͜ͷ Productʢ= SKProductʣʹ͋ΒΏΔ৘ใ͕٧·͍ͬͯΔɻ

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ϓϩμΫτͷߪೖ - Product.purchase()
● Կ΋४උ͸ඞཁͳ͍ɻͨͬͨɺ1
ߦͷίʔυͰߪೖ։࢝ɻ

● ߪೖ঎඼ͷݕূ͸ΞϓϦଆͰɻ

● τϥϯβΫγϣϯ͸ಉؔ͡਺಺Ͱ
׬ྃͰ͖Δɻ

● try catch ͰΤϥʔ΋ଈ࠲ʹऔಘͰ
͖Δɻ

● Delegate ͳ͠ɻ

● ίʔϧόοΫؔ਺΋ͳ͘ͳΔɻ

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2ϲॴͷτϥϯβΫγϣϯ
● ΞϓϦىಈ࣌ͷτϥϯβΫγϣϯ

● ߪೖ঎඼ͷ෮ݩ࣌ͷτϥϯβΫγϣϯ

ͪ͜Β΋؆୯ʹ࣮૷Ͱ͖Δɻ

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ΞϓϦىಈ࣌ͷτϥϯβΫγϣϯᶃ - Transaction.updates
● ࣗಈߋ৽ͷαϒεΫͳͲͰൃੜ
ͨ͠ɺະॲཧͷτϥϯβΫγϣ
ϯΛऔಘͰ͖Δɻ

● λοϓϧͰ͸ Root ͷ
ViewController Ͱ listen ͍ͯ͠
Δɻʢৗʹ؂ࢹʣ

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ߪೖ঎඼ͷ෮ݩ࣌ͷτϥϯβΫγϣϯᶄ - Transaction.currentEntitilements
● ෮ݩର৅ͷτϥϯβΫγϣϯΛ
औಘͰ͖Δɻ

● λοϓϧͰ͸ઃఆը໘ʹ͋Δ
ʮߪೖ಺༰ͷ෮ݩʯϝχϡʔʹ
࣮૷͍ͯ͠Δɻ

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ߪೖ঎඼ͷ෮ݩ࣌ͷτϥϯβΫγϣϯᶄ - Transaction.unfinished
● ߪೖ࣌ʹApp Storeͷܾࡁ͸׬
͕ྃͨ͠ɺαʔόʔଆͷܾࡁޙ
ॲཧʹࣦഊͨ͠έʔεͳͲͰɺ
ະॲཧͷτϥϯβΫγϣϯΛऔ
ಘͰ͖Δɻ

● ͪ͜Β΋ઃఆը໘ʹ͋Δʮߪೖ
಺༰ͷ෮ݩʯϝχϡʔʹ࣮૷͠
͍ͯΔɻ

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τϥϯβΫγϣϯॲཧͷ஫ҙ఺ʂᶃ
λοϓϧͰ͸ɺ෮ݩ࣌ʹҎԼͷ2छྨͷτϥϯβΫγϣϯΛ֬ೝͯ͠Δɻ

ᶃ Transaction.currentEntitlements

ᶄ Transaction.unfinished

ԿΒ͔ͷཧ༝Ͱߪೖ঎඼ͷτϥϯβΫγϣϯΛ׬ྃͰ͖ͳ͔ͬͨͱ͖ɺ֘౰ͷτϥϯβΫγϣϯ
͸ Transaction.currentEntitlements Ͱ͸ͳ͘ɺTransaction.unfinished ʹଘࡏ͍ͯͨ͠ɻ

։ൃॳظஈ֊Ͱ͸ Transaction.currentEntitlements ʹར༻Մೳ঎඼͕͢΂ͯଘࡏ͢Δͱࢥ͕ͬͨɺ

ςετΛ௨ͯ͡ɺະ׬ྃͷτϥϯβΫγϣϯ͸ Transaction.currentEntitlements ʹؚ·Ε͍ͯͳ͍
͜ͱ͕Θ͔ͬͨɻ

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τϥϯβΫγϣϯॲཧͷ஫ҙ఺ʂᶄ
ͦͷͨΊɺαʔόʔଆͰ͸APIΛϩοΫͯ͠ɺαʔόʔଆͷ࿈ଓܾͨ͠ࡁޙॲཧ͕ൃੜ͠ͳ͍Α͏
ʹରࡦͨ͠ɻ
঎඼Λߪೖͨ͠ͱ͖ɺαʔόʔଆͰܾࡁޙॲཧΛ͢Δ͕ɺ

ॏෳͯ͠৽نߪೖͷॲཧͯ͠͠·͍ͬͯͨɻ
Appleͷެࣜαϯϓϧίʔυʹ͸ɺߪೖʹΑΔτϥϯβΫγϣϯ͸ listen͠ͳ͍ͱॻ͍͕ͯ͋ͬͨ...

// Iterate through any transactions that don't come from a direct call to `purchase()`.

https://developer.apple.com/documentation/storekit/in-app_purchase/implementing_a_store_in_your_app_using_the_storekit_api
A. ߪೖ௚ޙ

B. ΞϓϦىಈ࣌ʹ listen ͨ͠ Transactions.updates

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Ϩγʔτ
Ϩγʔτ͕ෆཁʹͳͬͨʂ

ͦͷ୅ΘΓʹԿ͕ඞཁʁ

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Ϩγʔτ͕ෆཁʹͳͬͨʂ- ফ໣ܕ
● Ϩγʔτͷ୅ΘΓʹɺ
jwsRepresentation Λαʔόʔʹ
ૹΔɻ

● base64ʹΤϯίʔυ͞Ε͍ͯΔ
ͷͰɺσίʔυ͢Ε͹
transactionId ͳͲΛऔಘͰ͖Δɻ

● ߪೖ੒ޭޙͷฦΓ஋ͰऔಘͰ͖Δ
஋ɻ

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Ϩγʔτ͕ෆཁʹͳͬͨʂ- αϒεΫϦϓγϣϯ
● Ϩγʔτͷ୅ΘΓʹɺ
originalTransactionId Λαʔόʔʹ
ૹΔɻ

● λοϓϧͷαʔόʔଆͰ͸ɺ
originalTransactionId Λجʹ

App Store Server API Λ࢖ͬͯɺ

τϥϯβΫγϣϯͷৄࡉ৘ใΛऔಘ
͢Δɻ

● ͪ͜Β΋ɺߪೖ੒ޭޙͷฦΓ஋Ͱऔ
ಘͰ͖Δ஋ɻ

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StoreKit2Ͱ

γϯϓϧͳίʔυʹͳ͓͔ͬͨ͛Ͱ

ίʔυΛ௥͍΍͘͢ͳΓ

σόοάָ͕ʹͳͬͨ

՝ۚཧղͷϋʔυϧ͕Լ͕ͬͨ

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StoreKit2

ΦϑΝʔ

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StoreKit2 - ΦϑΝʔ
͓ࢼ͠ແྉ΍ηʔϧࢪࡦͷͨΊʹɺΦϑΝʔΛ௥Ճͨ͠ɻ

● ͓ࢼ͠ΦϑΝʔ

● ϓϩϞʔγϣϯΦϑΝʔ

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● αϒεΫάϧʔϓ಺ͰҰ౓͚ͩఏڙՄೳɻ

● ίʔυଆͰΦϑΝʔͷద༻༗ແΛࢦఆͰ͖ͳ͍ɻʢAppleଆͰ൑அʣ

● αϒεΫάϧʔϓ಺Ͱɺར༻தͷαϒεΫ͕͋Δͱద༻Ͱ͖ͳ͍ɻ

※ΞοϓάϨʔυɺμ΢ϯάϨʔυͰͷఏڙ͸Ͱ͖ͳ͍ɻ

● αϒεΫͷߪೖܦݧ͕͋ͬͯ΋ɺ͓ࢼ͠ܦݧ͕ͳ͚Ε͹ɺ

͓ࢼ͠ΦϑΝʔΛఏڙͰ͖Δɻ
͓ࢼ͠ΦϑΝʔ

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͓ࢼ͠ΦϑΝʔ
● ͓ࢼ͠ΦϑΝʔͷ৘ใ

Product.subscription?.introductoryOffer

● ͓ࢼ͠ΦϑΝʔΛఏڙՄೳ͔ʁ

Product.SubscriptionInfo.isEligibleForIntroOffer

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͓ࢼ͠ΦϑΝʔ - ஫ҙ఺ʂ
isEligibleForIntroOffer == true Ͱ΋ɺ

ಉ͡αϒεΫάϧʔϓ಺Ͱɺར༻தͷαϒεΫ͕͋Δͱ͓ࢼ͠ΦϑΝʔΛద༻Ͱ͖ͳ͍ɻ

ͦͷͨΊλοϓϧͰ͸ɺProduct.SubscriptionInfo.status Λऔಘͯ͠ɺ

ݱࡏར༻தͷαϒεΫ͕ଘࡏ͢Δ͔νΣοΫ͍ͯ͠Δɻ

true ͚ͩͲɺ͓ࢼ͠ΛఏڙͰ͖ͳ͍ͷͰ஫ҙʂ

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Ϩγʔτͷத਎Λൈਮʢ๨Εͳ͍Α͏ʹϝϞʣ

● ແྉ͓ࢼ͠ΦϑΝʔ

"is_trial_period": "true",

"is_in_intro_offer_period": "false",

● ༗ྉ͓ࢼ͠ΦϑΝʔ

"is_trial_period": "false",

"is_in_intro_offer_period": "true",
͓ࢼ͠ΦϑΝʔ - Ϩγʔτͷத਎

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● Կ౓Ͱ΋ఏڙՄೳɻ

● ίʔυଆͰߪೖ࣌ʹOfferIdΛࢦఆ͢Δɻ

OfferIdΛࢦఆ͠ͳ͍ͱ௨ৗՁ֨ѻ͍ɻ

● ΞϓϦ಺ͰҰ౓Ͱ΋αϒεΫߪೖܦݧ͕ͳ͍ͱఏڙͰ͖ͳ͍ɻ

※ߪೖܦݧ͕ͳ͍ͷʹϓϩϞʔγϣϯΦϑΝʔͰߪೖ͠Α͏ͱ͢ΔͱΤϥʔʹͳΔɻ

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● ϓϩϞʔγϣϯΦϑΝʔ৘ใͷऔಘʢ࠷େ10݅ͷొ࿥͕Մೳʣ

Product.subscription?.promotionalOffers.first(where: { $0.id == offerId })

● ϓϩϞʔγϣϯΦϑΝʔΛఏڙՄೳ͔ʁ

Product.SubscriptionInfo.status(for: subscriptionGroupId)?.isEmpty

λοϓϧͰ͸ɺಉ͡αϒεΫάϧʔϓ಺ͷߪೖܦݧͰ൑அͨ͠ɻ

※ϕετϓϥΫςΟε͕͋Ε͹ڭ͍͖͍͑ͯͨͩͨͰ͢ɻ

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Ϩγʔτͷத਎Λൈਮʢ๨Ε͕ͪͳͷͰϝϞʣ

"promotional_offer_id": "**************************"
ϓϩϞʔγϣϯΦϑΝʔ - Ϩγʔτͷத਎

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ʮappBundleId + '\u2063' + keyIdentifier + '\u2063' + productIdentifier + '\u2063' + offerIdentifier + '\u2063' + appAccountToken +
'\u2063' + nonce + '\u2063' + timestampʯ

ʮappBundleId + '\u2063' + keyIdentifier + '\u2063' + productIdentifier + '\u2063' + offerIdentifier + '\u2063' + '' + '\u2063' + nonce +
'\u2063' + timestampʯ
ϓϩϞʔγϣϯΦϑΝʔΛߪೖ͢Δͱ͖ɺαʔόʔଆͰ signature Λੜ੒ͯ͠ɺ

iOSଆͰ Product.purchase ࣌ʹ signature Λ෇༩͢Δඞཁ͕͋Δɻ

͜ͷͱ͖ɺΦϓγϣφϧͷ appAccountToken ͕ෆཁͳ৔߹͸ɺۭจࣈͱͯ͠ઃఆ͢Δɻ

※ۭจࣈ΋ແ͍ঢ়ଶͰ signature Λ࡞੒ͨ͠ΒߪೖͰ͖ͣΤϥʔʹͳΔɻ
ϓϩϞʔγϣϯΦϑΝʔͷॺ໊࡞੒Ͱ͸·ͬͨ͜ͱʢsignatureʣ
[Link]

https://developer.apple.com/documentation/storekit/in-app_purchase/original_api_for_in-app_purchase/subscriptions_and_offers/
generating_a_signature_for_promotional_offers

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όοΫΤϯυଆͷରԠ

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όοΫΤϯυଆͷରԠ
App Store Server API
● αϒεΫ৘ใͷऔಘ

αϒεΫͷܾࡁޙॲཧͷͱ͖ɺoriginalTransactionId ͔Βৄࡉ৘ใΛऔಘ͢ΔͨΊʹɺ

Լه API Λར༻ͨ͠ɻ

https://api.storekit.itunes.apple.com/inApps/v1/subscriptions/{transactionId}

https://developer.apple.com/documentation/appstoreserverapi/get_all_subscription_statuses

● τϥϯβΫγϣϯཤྺ

αϒεΫͷΞοϓάϨʔυ/μ΢ϯάϨʔυͷࡍʹɺաڈͷߪೖ৘ใ͕ඞཁͩͬͨͨΊɺ

Լه API Λར༻ͨ͠ɻ

https://api.storekit.itunes.apple.com/inApps/v1/history/{transactionId}

https://developer.apple.com/documentation/appstoreserverapi/get_transaction_history

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ϦϦʔεޙʹରԠͯ͠Α͔ͬͨ͜ͱ

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ϦϦʔε࣌ʹରԠͯ͠Α͔ͬͨ͜ͱ
ஈ֊తϦϦʔε
● App Store Connect ͔ΒΞϓϦΛ
ϦϦʔε͢Δͱ͖ɺʮஈ֊తϦϦ
ʔεʯΛར༻ͨ͠ɻ

● λοϓϧͰ͸௨ৗ࣌΋ஈ֊తϦϦ
ʔεΛ࣮ࢪ͍ͯ͠Δ͕ɺ՝ۚؔ࿈
ͷϦϦʔε࣌͸ɺΧελϚʔαϙ
ʔτ΁ͷ໰͍߹Θͤঢ়گͳͲݟͳ
͕Βɺ͍ͭ΋ΑΓ༨༟Λ࣋ͬͯ
100%։์ʹͨ͠ɻ

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৽چίʔυͷ੾Γସ͑
● Firebase ͷ Remote Config Λ
࢖ͬͯɺԿ͔େ͖ͳ໰୊͕ൃੜ
ͨ͠ͱ͖ͷͨΊʹɺ৽چͷίʔ
υΛ੾Γସ͑ΒΕΔΑ͏ʹ͠
ͨɻ

● ։์཰Λ0%ʹ͢Δͱɺچίʔ
υͰ՝ۚॲཧ͕࣮ߦ͞ΕΔɻ

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Τϥʔϩάͷग़ྗ - Datadog
● Datadog Λར༻ͯ͠ɺ՝ۚؔ࿈ͷΤ
ϥʔΛग़ྗͨ͠ɻϢʔβʔ͔Βͷ໰
͍߹Θͤ࣌ͷௐࠪʹ໾ʹཱͬͨɻ

● εϜʔζͳௐࠪͷͨΊʹɺͪΐͬͱ
΍Γ͗͢ʁ͘Β͍ৄࡉͳΤϥʔ಺༰
ΛૹΔ͜ͱΛ͓͢͢Ίɻ

● Τϥʔ͕ٸܹʹ૿͑ͨࡍ͸ɺSlack
΁௨஌͕ಧ͘Α͏ʹ Monitors Λར
༻ͨ͠ɻ

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ΤϥʔϝοηʔδʹΤϥʔ ID
● ֤छ՝ۚؔ࿈ͷΤϥʔΛ
·ͱΊͯ؅ཧͯ͠ɺϢʔ
βʔʹදࣔ͢ΔΤϥʔϝ
οηʔδʹIDΛ෇༩͠
ͨɻ

● Ϣʔβʔ͔Βͷ໰͍߹Θ
ͤ࣌ʹɺΤϥʔϝοηʔ
δͷεΫγϣ΋͓ئ͍͠
͍ͯΔͨΊɺID͕ෆ۩߹
ௐࠪʹ໾ཱͬͨɻ

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ϦϦʔεޙʹ໌Β͔ʹͳࣦͬͨഊ...

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StoreKit1 ͱ 2 Λࠞࡏͤͯ͞͠·ͬͨ...

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αʔόʔଆͷ౎߹ʹΑΓɺஈ֊Λ౿ΜͰϦχϡʔΞϧΛܭըͨ͠ɻ

Step1: ·ͣ͸ɺiOSଆͷΈΛ StoreKit2 ʹҠߦ

Step2: ࣍ʹɺαʔόʔଆΛ StoreKit2 ʹରԠͨ͠APIʹҠߦ

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ͦͷͨΊɺ࠷ॳͷஈ֊Ͱ͸

چདྷܕͷ receipt σʔλ(StoreKit1) Λ࢖ܾͬͨࡁޙॲཧΛͨ͠ɻ

ͭ·ΓɺiOSଆͷߪೖ͸StoreKit2ɺαʔόʔଆͷܾࡁޙॲཧ͸StoreKit1

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͜ͷͱ͖ɺαʔόʔଆͰ receipt Λ࢖ͬͯϨγʔτͷத਎Λ֬ೝͨ͠Βɺ

࠷৽ͷߪೖ৘ใؚ͕·Ε͓ͯΒͣɺਖ਼ৗʹߪೖ঎඼Λ෇༩Ͱ͖ͳ͔ͬͨɻ

Ϩγʔτͷ൓өʹλΠϜϥά͕͋ͬͨɻ

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