StoreKit2を使った課金システムのフルリニューアル

iOSDC 2023 で登壇した資料です。
https://fortee.jp/iosdc-japan-2023/speaker/proposal/form?r=proposal&id=38b684f3-86a6-43be-8d27-48d9710626bf

Transcript

1. StoreKit2Λ࢖ͬͨ ΞϓϦ಺՝ۚͷ ϑϧϦχϡʔΞϧ 2023/09/03
2. ࣗݾ঺հ • גࣜձࣾCAM த్Ͱೖࣾ • iOS ΤϯδχΞ 5೥໨ • CAMͰ͸ɺLDHɺΞΠυϧɺ઎͍ɺ৽ R25ͳͲɺΤϯλϝࣄۀʹैࣄ • λοϓϧʹδϣΠϯͯ͠໿1೥ ҏ౻ ༔ฏ
3. ओͳ಺༰ • λοϓϧʹ͍ͭͯ • λοϓϧͷ՝ۚʹ͍ͭͯ • ϑϧϦχϡʔΞϧͷഎܠ • ϑϧϦχϡʔΞϧ·Ͱͷ௕ظϓϥϯ • StoreKit2 • όοΫΤϯυଆͷରԠ • ϦϦʔε࣌ʹରԠͯ͠Α͔ͬͨ͜ͱ • ϦϦʔεޙʹ໌Β͔ʹͳࣦͬͨഊ...
4. ฐࣾͷԣ࣠૊৫ʹ͍ͭͯ גࣜձࣾCAM → גࣜձࣾλοϓϧ
5. ԣ࣠૊৫ʹ͍ͭͯ αΠόʔΤʔδΣϯτάϧʔϓ಺ʹάϧʔϓ
6. λοϓϧʹ͍ͭͯ
7. λοϓϧʹ͍ͭͯ • ϚονϯάΞϓϦͷʮλοϓϧʯ͸ɺ2014೥5݄ʹαʔϏεΛ։࢝ɻ • ࣗ෼ͷझຯ΍ߦͬͯΈ͍ͨσʔτεϙοτΛ͖͔͚ͬʹɺ࿀ͷ૬ख͕ݟ͚ͭΒΕ Δࠃ಺࠷େن໛ͷϚονϯάΞϓϦɻ
8. 9/1ʹɺϚονϯάΞϓϦͷTVCM͕ղې͞Ε·ͨ͠ TVCMͷ์ө͸৚͕݅ݫ͍͠Β͍͠...
10. λοϓϧͷ՝ۚʹ͍ͭͯ
11. λοϓϧͷ՝ۚʹ͍ͭͯ - ௨ৗ ʻফ໣ܕͷϙΠϯτʼ ʻαϒεΫͷγϯϓϧɺελϯμʔυϓϥϯʼ
12. λοϓϧͷ՝ۚʹ͍ͭͯ - ηʔϧࢪࡦ
13. ϑϧϦχϡʔΞϧͷഎܠ
14. ϑϧϦχϡʔΞϧͷഎܠ • ՝ۚͷϚΠΫϩαʔϏεԽʢෳࡶͩͬͨγεςϜΛγϯϓϧʹ͍ͨ͠ʣ • ՝ۚج൫ͷ৐Γ׵͑ʢαΠόʔΤʔδΣϯτͷ՝ۚج൫Λ࢖͍͍ͨʣ • App Store Server Notifications ͷಋೖʢVersion 2ʣ ΞϓϦ಺՝ۚʹ͓͍ͯߪೖɺࣗಈߋ৽ɺαϒεΫఀࢭͳͲͷΠϕϯτΛαʔόʔʹ ϦΞϧλΠϜͰ௨஌Ͱ͖Δػೳɻ όοΫΤϯυଆ
15. ϑϧϦχϡʔΞϧͷഎܠ • StoreKit2 ͷಋೖ • KMPɺBFFΛ࢖ͬͨ՝ۚؔ࿈ͷڞ௨ԽʢAndroidͱ՝ۚϩδοΫΛڞ௨Խ͍ͨ͠ʣ • ͓ࢼ͠ΦϑΝʔɺϓϩϞʔγϣϯΦϑΝʔͷಋೖ iOSଆ
16. ϑϧϦχϡʔΞϧͷ௕ظϓϥϯ
17. ϑϧϦχϡʔΞϧͷ௕ظϓϥϯʢ໿4ϲ݄ؒʣ ՝ۚͷϚΠΫϩαʔϏεԽ KMPɺBFFԽ ※ StoreKit1 ͷঢ়ଶ Step1 Step2 Step3 StoreKit2ͷಋೖ ͓ࢼ͠ΦϑΝʔ ϓϩϞʔγϣϯΦϑΝʔ ͷಋೖ େ͖ͳࢪࡦɺ͔͠΋՝ۚͷͨΊɺ3ͭʹ෼͚ͨ
18. StoreKit2 γϯϓϧͳίʔυ
19. StoreKit2 - γϯϓϧͳίʔυ ϓϩμΫτ৘ใͷऔಘ - Product.products() • Կ΋४උ͸ඞཁͳ͍ɻͨͬͨɺ1ߦͷίʔυɻ • ͜ͷ Productʢ= SKProductʣʹ͋ΒΏΔ৘ใ͕٧·͍ͬͯΔɻ
20. StoreKit2 - γϯϓϧͳίʔυ 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
21. StoreKit2 - γϯϓϧͳίʔυ 2ϲॴͷτϥϯβΫγϣϯ • ΞϓϦىಈ࣌ͷτϥϯβΫγϣϯ • ߪೖ঎඼ͷ෮ݩ࣌ͷτϥϯβΫγϣϯ ͪ͜Β΋؆୯ʹ࣮૷Ͱ͖Δɻ
22. StoreKit2 - γϯϓϧͳίʔυ ΞϓϦىಈ࣌ͷτϥϯβΫγϣϯᶃ - Transaction.updates • ࣗಈߋ৽ͷαϒεΫͳͲͰൃੜ ͨ͠ɺະॲཧͷτϥϯβΫγϣ ϯΛऔಘͰ͖Δɻ • λοϓϧͰ͸ Root ͷ ViewController Ͱ listen ͍ͯ͠ Δɻʢৗʹ؂ࢹʣ
23. StoreKit2 - γϯϓϧͳίʔυ ߪೖ঎඼ͷ෮ݩ࣌ͷτϥϯβΫγϣϯᶄ - Transaction.currentEntitilements • ෮ݩର৅ͷτϥϯβΫγϣϯΛ औಘͰ͖Δɻ • λοϓϧͰ͸ઃఆը໘ʹ͋Δ ʮߪೖ಺༰ͷ෮ݩʯϝχϡʔʹ ࣮૷͍ͯ͠Δɻ
24. StoreKit2 - γϯϓϧͳίʔυ ߪೖ঎඼ͷ෮ݩ࣌ͷτϥϯβΫγϣϯᶄ - Transaction.unfinished • ߪೖ࣌ʹApp Storeͷܾࡁ͸׬ ͕ྃͨ͠ɺαʔόʔଆͷܾࡁޙ ॲཧʹࣦഊͨ͠έʔεͳͲͰɺ ະॲཧͷτϥϯβΫγϣϯΛऔ ಘͰ͖Δɻ • ͪ͜Β΋ઃఆը໘ʹ͋Δʮߪೖ ಺༰ͷ෮ݩʯϝχϡʔʹ࣮૷͠ ͍ͯΔɻ
25. StoreKit2 - γϯϓϧͳίʔυ 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
26. StoreKit2 - γϯϓϧͳίʔυ 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
27. StoreKit2 - γϯϓϧͳίʔυ Ϩγʔτ Ϩγʔτ͕ෆཁʹͳͬͨʂ ͦͷ୅ΘΓʹԿ͕ඞཁʁ
28. StoreKit2 - γϯϓϧͳίʔυ Ϩγʔτ͕ෆཁʹͳͬͨʂ- ফ໣ܕ • Ϩγʔτͷ୅ΘΓʹɺ jwsRepresentation Λαʔόʔʹ ૹΔɻ • base64ʹΤϯίʔυ͞Ε͍ͯΔ ͷͰɺσίʔυ͢Ε͹ transactionId ͳͲΛऔಘͰ͖Δɻ • ߪೖ੒ޭޙͷฦΓ஋ͰऔಘͰ͖Δ ஋ɻ
29. StoreKit2 - γϯϓϧͳίʔυ 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
30. StoreKit2 - γϯϓϧͳίʔυ StoreKit2Ͱ γϯϓϧͳίʔυʹͳ͓͔ͬͨ͛Ͱ ίʔυΛ௥͍΍͘͢ͳΓ σόοάָ͕ʹͳͬͨ ՝ۚཧղͷϋʔυϧ͕Լ͕ͬͨ
31. StoreKit2 ΦϑΝʔ
32. StoreKit2 - ΦϑΝʔ ͓ࢼ͠ແྉ΍ηʔϧࢪࡦͷͨΊʹɺΦϑΝʔΛ௥Ճͨ͠ɻ • ͓ࢼ͠ΦϑΝʔ • ϓϩϞʔγϣϯΦϑΝʔ
33. StoreKit2 - ΦϑΝʔ • αϒεΫάϧʔϓ಺ͰҰ౓͚ͩఏڙՄೳɻ • ίʔυଆͰΦϑΝʔͷద༻༗ແΛࢦఆͰ͖ͳ͍ɻʢAppleଆͰ൑அʣ • αϒεΫάϧʔϓ಺Ͱɺར༻தͷαϒεΫ͕͋Δͱద༻Ͱ͖ͳ͍ɻ ※ΞοϓάϨʔυɺμ΢ϯάϨʔυͰͷఏڙ͸Ͱ͖ͳ͍ɻ • αϒεΫͷߪೖܦݧ͕͋ͬͯ΋ɺ͓ࢼ͠ܦݧ͕ͳ͚Ε͹ɺ ͓ࢼ͠ΦϑΝʔΛఏڙͰ͖Δɻ ͓ࢼ͠ΦϑΝʔ
34. StoreKit2 - ΦϑΝʔ ͓ࢼ͠ΦϑΝʔ • ͓ࢼ͠ΦϑΝʔͷ৘ใ Product.subscription?.introductoryOffer • ͓ࢼ͠ΦϑΝʔΛఏڙՄೳ͔ʁ Product.SubscriptionInfo.isEligibleForIntroOffer
35. StoreKit2 - ΦϑΝʔ ͓ࢼ͠ΦϑΝʔ - ஫ҙ఺ʂ isEligibleForIntroOffer == true Ͱ΋ɺ ಉ͡αϒεΫάϧʔϓ಺Ͱɺར༻தͷαϒεΫ͕͋Δͱ͓ࢼ͠ΦϑΝʔΛద༻Ͱ͖ͳ͍ɻ ͦͷͨΊλοϓϧͰ͸ɺProduct.SubscriptionInfo.status Λऔಘͯ͠ɺ ݱࡏར༻தͷαϒεΫ͕ଘࡏ͢Δ͔νΣοΫ͍ͯ͠Δɻ true ͚ͩͲɺ͓ࢼ͠ΛఏڙͰ͖ͳ͍ͷͰ஫ҙʂ
36. StoreKit2 - ΦϑΝʔ 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਎
37. StoreKit2 - ΦϑΝʔ • Կ౓Ͱ΋ఏڙՄೳɻ • ίʔυଆͰߪೖ࣌ʹOfferIdΛࢦఆ͢Δɻ OfferIdΛࢦఆ͠ͳ͍ͱ௨ৗՁ֨ѻ͍ɻ • ΞϓϦ಺ͰҰ౓Ͱ΋αϒεΫߪೖܦݧ͕ͳ͍ͱఏڙͰ͖ͳ͍ɻ ※ߪೖܦݧ͕ͳ͍ͷʹϓϩϞʔγϣϯΦϑΝʔͰߪೖ͠Α͏ͱ͢ΔͱΤϥʔʹͳΔɻ ϓϩϞʔγϣϯΦϑΝʔ
38. StoreKit2 - ΦϑΝʔ • 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 ϓϩϞʔγϣϯΦϑΝʔ
39. StoreKit2 - ΦϑΝʔ Ϩγʔτͷத਎Λൈਮʢ๨Ε͕ͪͳͷͰϝϞʣ "promotional_offer_id": "**************************" ϓϩϞʔγϣϯΦϑΝʔ - Ϩγʔτͷத਎
40. 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 StoreKit2 - ΦϑΝʔ 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
41. όοΫΤϯυଆͷରԠ
42. 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
43. ϦϦʔεޙʹରԠͯ͠Α͔ͬͨ͜ͱ
44. 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
45. ϦϦʔε࣌ʹରԠͯ͠Α͔ͬͨ͜ͱ ৽چίʔυͷ੾Γସ͑ • Firebase ͷ Remote Config Λ ࢖ͬͯɺԿ͔େ͖ͳ໰୊͕ൃੜ ͨ͠ͱ͖ͷͨΊʹɺ৽چͷίʔ υΛ੾Γସ͑ΒΕΔΑ͏ʹ͠ ͨɻ • ։์཰Λ0%ʹ͢Δͱɺچίʔ υͰ՝ۚॲཧ͕࣮ߦ͞ΕΔɻ
46. ϦϦʔε࣌ʹରԠͯ͠Α͔ͬͨ͜ͱ Τϥʔϩάͷग़ྗ - Datadog • Datadog Λར༻ͯ͠ɺ՝ۚؔ࿈ͷΤ ϥʔΛग़ྗͨ͠ɻϢʔβʔ͔Βͷ໰ ͍߹Θͤ࣌ͷௐࠪʹ໾ʹཱͬͨɻ • εϜʔζͳௐࠪͷͨΊʹɺͪΐͬͱ ΍Γ͗͢ʁ͘Β͍ৄࡉͳΤϥʔ಺༰ ΛૹΔ͜ͱΛ͓͢͢Ίɻ • Τϥʔ͕ٸܹʹ૿͑ͨࡍ͸ɺSlack ΁௨஌͕ಧ͘Α͏ʹ Monitors Λར ༻ͨ͠ɻ
47. ϦϦʔε࣌ʹରԠͯ͠Α͔ͬͨ͜ͱ ΤϥʔϝοηʔδʹΤϥʔ ID • ֤छ՝ۚؔ࿈ͷΤϥʔΛ ·ͱΊͯ؅ཧͯ͠ɺϢʔ βʔʹදࣔ͢ΔΤϥʔϝ οηʔδʹIDΛ෇༩͠ ͨɻ • Ϣʔβʔ͔Βͷ໰͍߹Θ ͤ࣌ʹɺΤϥʔϝοηʔ δͷεΫγϣ΋͓ئ͍͠ ͍ͯΔͨΊɺID͕ෆ۩߹ ௐࠪʹ໾ཱͬͨɻ
48. ϦϦʔεޙʹ໌Β͔ʹͳࣦͬͨഊ...
49. ϦϦʔεޙʹ໌Β͔ʹͳࣦͬͨഊ... StoreKit1 ͱ 2 Λࠞࡏͤͯ͞͠·ͬͨ...
50. ϦϦʔεޙʹ໌Β͔ʹͳࣦͬͨഊ... αʔόʔଆͷ౎߹ʹΑΓɺஈ֊Λ౿ΜͰϦχϡʔΞϧΛܭըͨ͠ɻ Step1: ·ͣ͸ɺiOSଆͷΈΛ StoreKit2 ʹҠߦ Step2: ࣍ʹɺαʔόʔଆΛ StoreKit2 ʹରԠͨ͠APIʹҠߦ
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