In-App Purchasesの 実装前に知っておきたい ハマりポイント / Points to be aware of when implementing In-App Purchases

by rockname

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In-App Purchasesͷ  ࣮૷લʹ஌͓͖͍ͬͯͨ  ϋϚΓϙΠϯτ ΈͯͶͷMeetup #5 ܾࡁΛࢧ͑Δٕज़ 2019/05/20 גࣜձࣾϛΫγΟ ΈͯͶࣄۀ෦ ϩΫωϜ@rockname

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ϩΫωϜ@rockname • גࣜձࣾϛΫγΟ 2018೥৽ଔೖࣾ • Ո଒ΞϧόϜΈͯͶ • ΞϓϦ։ൃάϧʔϓ  iOS(Swift, objc) > Android(Kotlin, Java) == Rails(ruby) • झຯ: VTuberؑ৆ • WWDC 2019 ࢀՃ͠·͢ ✈  ࣗݾ঺հ

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ΞδΣϯμ ࿩͢͜ͱ • In-App Purchasesͱ͸Կ͔ • ΈͯͶʹ͓͚ΔIn-App Purchasesͷେ·͔ͳ࣮૷ • In-App PurchasesͰϋϚͬͨ͜ͱͱͦͷճආࡦ  ࿩͞ͳ͍͜ͱ • αʔόʔαΠυͷ࣮૷ • iOSͷࡉ͔͍࣮૷

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In-App Purchasesͱ͸ʁ

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In-App Purchases • iOSʹ͓͚ΔΞϓϦ಺՝ۚͷ໊শ • ΞϓϦ಺ͷػೳΛఏڙ͢Δࡍʹ࢖༻ ͢Δඞཁ͕͋Δ • ࠷ۙApple͕αϒεΫϦϓγϣϯΛ ਪͯ͠Δײ͕͋͡Δ

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ΞϓϦ಺՝͕ۚ  ൓ө͞ΕΔ·ͰͷྲྀΕ

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1. AppStoreͷtransactionΛ؂ࢹ

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2. ՝ۚΞΠςϜΛදࣔ

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3. AppStoreͰߪೖॲཧ

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4. ϨγʔτͷόϦσʔγϣϯ

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ࣗಈߋ৽αϒεΫϦϓγϣϯ ͷ৔߹͸͞Βʹ…

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ঢ়ଶߋ৽௨஌ • ࣗಈߋ৽αϒεΫϦϓγϣϯͷঢ়ଶ͕੾ΓସΘͬͨ͜ͱΛ௨஌ "QQ4UPSF

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ঢ়ଶߋ৽௨஌ • ࣗಈߋ৽αϒεΫϦϓγϣϯͷঢ়ଶ͕੾ΓସΘͬͨ͜ͱΛ௨஌ αϒεΫϦϓγϣϯΛΩϟϯηϧ "QQ4UPSF

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ঢ়ଶߋ৽௨஌ • ࣗಈߋ৽αϒεΫϦϓγϣϯͷঢ়ଶ͕੾ΓସΘͬͨ͜ͱΛ௨஌ αϒεΫϦϓγϣϯΛΩϟϯηϧ 5ZQF$"/$&- "QQ4UPSF

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ঢ়ଶߋ৽௨஌ • ࣗಈߋ৽αϒεΫϦϓγϣϯͷঢ়ଶ͕੾ΓସΘͬͨ͜ͱΛ௨஌ αϒεΫϦϓγϣϯΛΩϟϯηϧ Ϣʔβʔσʔλͷߋ৽ 5ZQF$"/$&- "QQ4UPSF

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ຊ୊

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In-App Purchasesͷ࣮૷Ͱ  ϋϚͬͨ5ͭͷপ

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1. SandboxͰ͔͠ ߪೖͷಈ࡞֬ೝ͕Ͱ͖ͳ͍

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ΞϓϦ಺՝ۚͷςετ • App Store ConnectͰSandboxςελʔ Λ࡞੒ • SandboxςελʔͰߪೖ͢Δ͜ͱͰ AppleͷςεταʔόʔͰϨγʔτ͕ॲཧ ͞ΕΔ • Sandbox؀ڥͷϨγʔτ͕෷͍ग़͞ΕΔ

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ΞϓϦ಺՝ۚͷਃ੥ • ΞϓϦͷϨϏϡʔ΋Appleͷ SandboxͰϨγʔτ͕ॲཧ ͞ΕΔ • ຊ൪Ͱॲཧ͞ΕΔͷ͸ΞϓϦ ΛϦϦʔε͔ͯ͠Β͚ͩ…

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αʔόʔଆͰͷຊ൪Ϩγʔτ ॲཧͷಈ࡞֬ೝ͕Ͱ͖ͳ͍

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ϓϩϞίʔυ

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ϓϩϞʔγϣϯίʔυͱ͸ • ਃ੥ͷ௨ͬͨΞϓϦͳͲΛެ։લͰ΋഑෍͢ Δ͜ͱ͕Ͱ͖Δ • ެࣜυΩϡϝϯτతʹ͸ʮજࡏސ٬΍Ϩ Ϗϡʔهࣄͷ࡞੒ऀ΁ͷ഑෍ͳͲϓϩϞʔ γϣϯͷͨΊͷ࢖༻ʯ͕૝ఆ͞Ε͍ͯΔ

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ϓϩϞʔγϣϯίʔυͷ͓͔͛Ͱ ແࣄʹϦϦʔεલʹຊ൪Ͱͷ  ಈ࡞֬ೝ͕Ͱ͖ͨ

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2. Ϩγʔτ͕ ΋ͷ͘͢͝௕͘ͳΔ

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SandboxςελʔͰಈ࡞֬ೝ͍ͯͨ͋͠Δ೔ • Կ౓՝ۚͯ͠΋ࣦഊ͢Δ • αʔόʔʹೖͬͯϩάΛݟΔͱݪҼ͕Θ͔ͬͨ…

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SandboxςελʔͰಈ࡞֬ೝ͍ͯͨ͋͠Δ೔ • Կ౓՝ۚͯ͠΋ࣦഊ͢Δ • αʔόʔʹೖͬͯϩάΛݟΔͱݪҼ͕Θ͔ͬͨ…

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ফ໣ܕϓϩμΫτҎ֎ͷ  ϓϩμΫτߪೖ৘ใ͸Ϩγʔτʹ࢒Γଓ͚Δ • ͭ ެࣜυΩϡϝϯτ w ফ໣ܕϓϩμΫτͷ৘ใ͸ɺࢧ෷͍͕ߦΘΕΔͱγʔτʹ௥Ճ͞Εɺ τϥϯβΫγϣϯΛऴྃ͢Δ·ͰϨγʔτ্ʹ࢒Γ·͢ɻτϥϯβΫ γϣϯͷऴྃޙɺ͜ͷ৘ใ͸Ϩγʔτ͕࣍ʹߋ৽͞ΕΔͱ͖ɺͨͱ͑ ͹Ϣʔβʔ͕࣍ʹߪೖΛߦͬͨͱ͖ʹ࡟আ͞Ε·͢ɻ  ͜ΕҎ֎ͷछྨͷϓϩμΫτߪೖͷ৘ใ͸ɺࢧ෷͍͕ߦΘΕΔͱϨ γʔτʹ௥Ճ͞ΕɺϨγʔτʹ࢒Γଓ͚·͢ɻ • DBʹอଘ͢Δͱ͖ʹ͸Ұ޻෉ඞཁͦ͏

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FYDMVEFPME USBOTBDUJPOT

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Key: exclude-old-transactions • ϨγʔτͷόϦσʔγϣϯΛߦ͏ࡍʹ  `exclude-old-transactions` Λࢦఆ͢Δ͜ͱͰ  αϒεΫϦϓγϣϯͷ࠷৽ͷtransactionͷΈΛऔಘͰ͖Δʂʂʂ

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3. υΩϡϝϯτʹͳ͍ Τϥʔίʔυ͕ฦͬͯ͘Δ

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ΤϥʔϋϯυϦϯά • ΞϓϦͷ՝ۚʹࣦഊͨ͠৔߹ʹద੾ͳΤϥʔϝοηʔδΛ  Ϣʔβʔʹݟͤͯ͋͛Δඞཁ͕͋Δ • StoreKitͰͷΤϥʔίʔυ͸ `SKErrorDomain` ͱͳΔ

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ߪೖ్தͰͷΩϟϯηϧ΋Τϥʔѻ͍ • ߪೖ్தग़ͯ͘ΔΞϥʔτͷΩϟϯηϧΛબ୒͢ΔͱɺͦΕ΋Τ ϥʔͱͯ͠ྲྀΕͯ͘Δ • Τϥʔίʔυ͸ `SKErrorDomain.paymentCancelled` ͱͳΔ • Ωϟϯηϧͷ৔߹͚ͩ guard ͯ͋͛͠Δඞཁ͕͋Δ guard error.code != SKError.paymentCancelled.rawValue else { return }

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෮ݩ్தͰͷΩϟϯηϧ͸…? • In-App PurchasesͰ͸ߪೖͨ͠ϓϩμΫτΛ෮ݩ͢ΔखஈΛఏڙ ͢Δඞཁ͕͋Δ (rejectҊ݅) • ͦͷࡍʹߦ͏ɺAppϨγʔτͷߋ৽ॲཧͷ్தग़ͯ͘ΔΞϥʔτ ͷΩϟϯηϧΛબ୒͢ΔͱɺͦΕ΋Τϥʔͱͯ͠ྲྀΕͯ͘Δ • Τϥʔίʔυ͸ `SSErrorDomain` …

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෮ݩ్தͰͷΩϟϯηϧ͸…? • In-App PurchasesͰ͸ߪೖͨ͠ϓϩμΫτΛ෮ݩ͢ΔखஈΛఏڙ ͢Δඞཁ͕͋Δ (rejectҊ݅) • ͦͷࡍʹߦ͏ɺAppϨγʔτͷߋ৽ॲཧͷ్தग़ͯ͘ΔΞϥʔτ ͷΩϟϯηϧΛબ୒͢Δͱ… • Τϥʔίʔυ͸ `SSErrorDomain` …

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υΩϡϝϯτʹࡌͬͯΔ  Τϥʔίʔυ SKErrorDomain ෮ݩΩϟϯηϧ࣌ʹฦ͖ͬͯͨ  Τϥʔίʔυ SSErrorDomain

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υΩϡϝϯτʹࡌͬͯΔ  Τϥʔίʔυ SKErrorDomain ෮ݩΩϟϯηϧ࣌ʹฦ͖ͬͯͨ  Τϥʔίʔυ SSErrorDomain

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υΩϡϝϯτʹࡌͬͯΔ  Τϥʔίʔυ SKErrorDomain ෮ݩΩϟϯηϧ࣌ʹฦ͖ͬͯͨ  Τϥʔίʔυ SSErrorDomain ͳΜ͔ͪΐͬͱҧ͏

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SSErrorDomain • StoreKit಺෦Ͱൃੜ͢ΔΤϥʔͷίʔυ͕࿙ΕͨΑ͏ • Open Radar: https://openradar.appspot.com/25502597  • υΩϡϝϯτԽ͞Ε͍ͯͳ͍ͷͰϋϯυϦϯάͷ͠Α͏͕ͳ͍  • ݱঢ়ΈͯͶͰ͸ͪ͜ΒͷΤϥʔίʔυ΋guardจͰ return ͯ͠  ରॲ͍ͯ͠Δ

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4. υΩϡϝϯτʹͳ͍ ௨஌λΠϓ͕ฦͬͯ͘Δ

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͋Δ೔ͷSlack • ϨγʔτॲཧपΓͷΤϥʔ͕ྲྀΕͯ͘ΔSlackͷνϟϯωϧʹͯ  ෆԺͳϝοηʔδ͕දࣔ͞ΕΔ

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͋Δ೔ͷSlack • ϨγʔτॲཧपΓͷΤϥʔ͕ྲྀΕͯ͘ΔSlackͷνϟϯωϧʹͯ  ෆԺͳϝοηʔδ͕දࣔ͞ΕΔ

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͋Δ೔ͷSlack

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Ṗͷঢ়ଶߋ৽௨஌λΠϓ  DID_CHANGE_RENEWAL_STATUS

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࣍ͷ೔ͷSlack

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Subscription Offers • iOS 12.2͔Βར༻ՄೳʹͳΔɺαϒεΫϦϓγϣϯΛղ໿ͨ͠Ϣʔβʔʹର͠ ͯఏڙͰ͖ΔDiscountͷ৽͍͠ϓϩϞʔγϣϯϓϥϯ • `DID_CHANGE_RENEWAL_STATUS` ͸ͦΕʹ෇ਵͯ͠ఏڙ͞Εͨ৽͍͠௨஌ λΠϓ • ΈͯͶ͸هࣄެ։લʹ͜ͷ௨஌λΠϓͷଘࡏʹ͍ͭͯ஌ͬͨ਺গͳ͍νʔϜ  ࠓޙ΋ෆ༻ҙʹ৽͍͠௨஌λΠϓΛ଍͞ΕΔՄೳੑ͕͋ΔͷͰɺ  ߟྀͯ͠αʔόʔαΠυ͸࣮૷͠Α͏

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5. ਃ੥ͨ͠ߪೖΞΠςϜ͸ औΓԼ͛Δ͜ͱ͕Ͱ͖ͳ͍

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rejectͷόοϑΝͱͯ͠Ծਃ੥ • Կճ͔reject͞ΕΔ͜ͱΛݟӽͯ͠ΈͯͶ͸iOSΞϓϦΛ2݄Լ० ʹԾਃ੥͍ͯͨ͠ • ҊͷఆԿ౓͔ϦδΣΫτΛ͘Βͬͨ ❌  ͕ɺແࣄʹ৹͕ࠪ௨Δʂʂʂ

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਺೔ޙ… • ϓϨϛΞϜެ։લʹόάϑΟοΫεͷࠩ෼ΛผϦϦʔεͱͯ͠ग़͢ ͜ͱʹ • ;ͱAppStoreΛͷ͍͍ͧͯΔͱ…

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ϓϨϛΞϜ͕ϦϦʔε͞Ε͍ͯΔ

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ΞϓϦ಺՝ۚͷਃ੥ • ΞϓϦ಺՝ۚͷ࠷ॳͷਃ੥͸ରԠ͢Δipa(όΠφϦ)ʹඥ͚ͮͯਃ ੥͢Δඞཁ͕͋Δ • ࣍ճҎ߱ͷΞϓϦ಺՝ۚͷਃ੥͸ͦΕࣗ਎ͷΈͰՄೳ

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Կ͕μϝͩͬͨʁ • ΞϓϦ಺՝ۚͷਃ੥࣌ʹAppStoreConnect্Ͱʮ഑৴Մೳʯͷ νΣοΫϘοΫεΛ unchecked ʹ͢Δ΂͖ͩͬͨʁ

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ޙ͔Β֎ͤͳ͍ͷʁ • `disabled` ʹͳ͍ͬͯͯ֎ͤͳ͔ͬͨ • ެࣜυΩϡϝϯτతʹ͸ݖݶ͕͋Ε͹ૢ࡞Ͱ͖Δ͸ͣͳͷʹ • https://help.apple.com/app-store-connect/#/ dev360aba524 • AppleʹԿ౓΋໰͍߹Θ͕ͤͨͪ͜Βͷ༧ظ͢Δճ౴͸ಘΒΕͳ ͔ͬͨ…