feat: let the app settle Apple Pay authorization with onAuthorize by jkasprzyk17 · Pull Request #30 · gmi-software/react-native-pay

jkasprzyk17 · 2026-10-19T19:38:21Z

Summary

Adds an opt-in onAuthorize callback: HybridPaymentHandler.startPayment(request, { onAuthorize }), and the same option on usePaymentCheckout. It receives the token after the user authorizes and resolves with { status: 'success' | 'failure', error? }.
iOS: didAuthorizePayment waits for the callback and passes its outcome to PassKit, so the sheet shows the real result instead of an unconditional success. A 'failure', a rejected promise, or no answer within 25 s (PassKit gives up after about 30 s) completes the sheet with .failure. startPayment then resolves with success: false and the callback's error. A retry from the sheet settles its own completion once. If the sheet is dismissed while the callback is pending, the result waits for the merchant's outcome instead of reporting a cancellation.
Without onAuthorize behaviour is unchanged, except that the fixed one-second delay before completing the sheet is gone.
Android: Google Pay's basic flow has no step that waits for the merchant, so the callback runs after the sheet closes, with the same timeout, and decides the PaymentResult. The same callback therefore works on both platforms. The payment holds the PendingPayment slot from fix: guard concurrent startPayment calls on Android and in the hook #29 until the callback settles, so a startPayment made meanwhile gets 'A payment is already in progress', as on iOS.
Docs: README, API pages (hybrid-payment-handler, use-payment-checkout, types), a new "Charge before the sheet closes" section in the server-processing guide, and pointers from payment-flow and manual-flow. The example app gets a simulated server toggle (off / approve / decline) for the manual forced-decline test.

Closes #14

Test plan

cd package && bun run specs: regenerated bindings are committed; a second run produces no diff.
cd package && bun run typecheck: passes
cd package && bun run lint: 0 errors, 2 warnings, both in android/build/ artifacts
cd package && bun run test:ci: 38/38 passed after merging main (fix: guard concurrent startPayment calls on Android and in the hook #29). 4 new hook tests: options are only passed when onAuthorize is set, the token reaches the callback, a 'failure' sets error, and a synchronously throwing callback still hands native a rejected Promise.
cd example/android && ./gradlew :gmisoftware_react-native-pay:testDebugUnitTest: 17/17 passed after merging main (11 GooglePayRequestBuilderTest + 6 PendingPaymentTest), also compiles the Kotlin changes
iOS example app built for the simulator (xcodebuild -workspace example.xcworkspace -scheme example -sdk iphonesimulator): succeeds, no warnings in HybridPaymentHandler.swift. Not re-run after merging main, which doesn't touch Swift or the Nitro specs
bun run docs:build: passes
Android C++/JNI build (externalNativeBuildDebug): not verified. Locally it fails in :react-native-nitro-modules:configureCMakeDebug because prefab on JDK 25 writes a warning to stderr. That's an environment issue; the new JNI code is nitrogen output.
Device: forced decline from the example app, retry after a failure, dismissal during onAuthorize (not run)

Risk

Additive public API. The Nitro spec changed (startPayment gained an optional second parameter), so apps need pod install / a Gradle sync after upgrading.
The Apple Pay sheet now completes about one second sooner when onAuthorize isn't used.
With onAuthorize, a server that answers after the 25 s timeout may already have charged the card while the app sees success: false. The guide tells integrators to make the charge idempotent and reconcile by order ID.

Notes

Calling onAuthorize on Android is a deliberate choice; the issue only asked to document the gap. Without it, an app that charges inside onAuthorize would never charge on Android and would still get success: true with a token.
Built on today's success / error result. Once Typed payment status and error codes; stop treating cancellation as an error #15 lands, a 'failure' should map to the typed status and code.
No inline PassKit errors (errors: [...], e.g. paymentContactInvalidError) yet. The result type is an object, so they can be added later without a breaking change.
Merged main after fix: guard concurrent startPayment calls on Android and in the hook #29 (concurrent startPayment guard). On Android, onAuthorize is assigned only after the slot is claimed, cleared before the slot is released, and a per-attempt guard stops a late outcome after the timeout from settling the next payment.
Native unit tests are left to Add native unit tests and native build jobs to CI #22.

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- Add `StartPaymentOptions.onAuthorize` (and the same option on `usePaymentCheckout`). It receives the token after the user authorizes and resolves with `{ status: 'success' | 'failure', error? }`. - iOS: `didAuthorizePayment` waits for the callback and passes its outcome to PassKit, so the sheet shows the real result. A failure, a rejection or a 25 s timeout completes the sheet with `.failure` and resolves `startPayment` with `success: false`. Each retry from the sheet settles its own completion once, and a dismissal mid-callback waits for the outcome. - Without `onAuthorize`, the sheet completes immediately; the fixed one-second delay is gone. - Android: Google Pay has no merchant step in the basic flow, so the callback runs after the sheet closes, with the same timeout, and decides the `PaymentResult`. The same callback works on both platforms. - Docs: README, API pages and the server-processing guide. The example app gets a simulated server toggle (off / approve / decline). Closes #14

coderabbitai · 2026-10-19T19:38:33Z

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Reviewing files that changed from the base of the PR and between aba2857 and 9720cda.

📒 Files selected for processing: 6

README.md
docs/docs/guides/manual-flow.md
docs/docs/guides/server-processing.md
docs/docs/payment-flow.md
package/src/hooks/usePaymentCheckout.ts
package/src/types/Payment.ts

🚧 Files skipped from review as they are similar to previous changes: 5

docs/docs/payment-flow.md
package/src/types/Payment.ts
README.md
package/src/hooks/usePaymentCheckout.ts
docs/docs/guides/server-processing.md

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📝 Summary

Summary by CodeRabbit

New Features
- Added optional payment authorization before the wallet sheet closes.
- Authorization receives the payment token and returns success or failure with an optional error.
- Authorization failures, rejected callbacks, and 25-second timeouts produce unsuccessful payment results.
- Android authorization runs after Google Pay closes; iOS retries may provide updated tokens.
Documentation
- Added server-side authorization guidance, including retry and idempotency considerations.
- Updated the demo app with simulated approval and decline modes.

The payment APIs now support an optional authorization callback that receives a payment token and returns a success or failure result. The iOS and Android handlers apply that result with a 25-second timeout. The example app, tests, and documentation cover the callback.

Changes: Token Authorization

Layer / File(s)	Summary
Authorization API and hook dispatch `package/src/types/Payment.ts`, `package/src/specs/PaymentHandler.nitro.ts`, `package/src/hooks/usePaymentCheckout.ts`, `package/src/hooks/__tests__/usePaymentCheckout.integration.test.ts`, `README.md`, `docs/docs/api/types.md`, `docs/docs/api/hybrid-payment-handler.md`, `docs/docs/api/use-payment-checkout.md`	The public types and `startPayment` signature add authorization options. The checkout hook forwards the payment token to the configured callback. Integration tests cover configured and unconfigured callbacks, success, failure, and synchronous exceptions.
Native authorization and payment settlement `package/ios/HybridPaymentHandler.swift`, `package/android/src/main/java/com/margelo/nitro/pay/HybridPaymentHandler.kt`, `package/android/src/main/java/com/margelo/nitro/pay/PaymentMapper.kt`, `package/android/src/main/java/com/margelo/nitro/pay/Constants.kt`	The native handlers apply authorization results and settle payment attempts once. Both platforms use a 25-second timeout. iOS waits for authorization before completing the sheet. Android invokes authorization after the payment sheet closes.
Example and authorization guidance `example/app/(tabs)/index.tsx`, `README.md`, `docs/docs/guides/*`, `docs/docs/payment-flow.md`	The example simulates authorization approval or decline. The guides and payment-flow documentation describe callback outcomes, timeout handling, retries, and platform behavior.

Priority: ➖ Normal

Estimated code review effort: 4 (Complex) | ~45 minutes

Change: Feature · Severity of issue fixed: Medium

Sequence Diagram(s)

sequenceDiagram
  participant WalletSheet
  participant HybridPaymentHandler
  participant onAuthorize
  participant usePaymentCheckout
  alt iOS
    WalletSheet->>HybridPaymentHandler: supplies payment token
    HybridPaymentHandler->>onAuthorize: authorizes token before sheet closes
    onAuthorize-->>HybridPaymentHandler: returns authorization result
    HybridPaymentHandler-->>WalletSheet: completes with authorization outcome
  else Android
    WalletSheet->>HybridPaymentHandler: closes before authorization callback
    HybridPaymentHandler->>onAuthorize: authorizes payment token
    onAuthorize-->>HybridPaymentHandler: returns authorization result
  end
  HybridPaymentHandler-->>usePaymentCheckout: resolves PaymentResult

Merge Risk: ⚪ Minimal · up to 9720c

No actionable merge risk remains.

Pre-merge checks: 4 · 2

Failed checks: 2 warnings

Check name	Status	Explanation	Resolution
Linked Issues check		The implementation meets `#14`'s behavior requirements. iOS maps callback success and failure to the PassKit result, returns the token on success, removes the no-callback delay, and bounds pending autho…	Add XCTest coverage for the iOS authorization delegate. Cover callback success, callback failure, timeout, and the no-callback path.
Docstring Coverage		Docstring coverage is 16.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 24 functions across 9 files. (4 skipped: …	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Title check		The title accurately describes the main change and uses the required feature prefix. It is 65 characters, which exceeds the preferred 50-character limit, but remains concise and descriptive.
Description check		The description clearly explains the onAuthorize API, platform behavior, documentation updates, tests, risks, and incomplete verification items. It is directly related to the changeset.
Out of Scope Changes check		The public callback API, iOS and Android handling, hook tests, documentation, and example-app server toggle support `#14`. The Android extension implements the documented cross-platform callback behavio…
Security Check		No medium, high, or critical vulnerability is introduced. The diff adds an opt-in callback and generated bridge types. Payment tokens and callback results stay within the app-to-merchant callback flow…

Full details: Out of Scope Changes check

Explanation

The public callback API, iOS and Android handling, hook tests, documentation, and example-app server toggle support #14. The Android extension implements the documented cross-platform callback behavior. No unrelated change is demonstrated.

Full details: Security Check

Explanation

No medium, high, or critical vulnerability is introduced. The diff adds an opt-in callback and generated bridge types. Payment tokens and callback results stay within the app-to-merchant callback flow. The new code has no network sink, command execution, deserialization boundary, secret handling, permission bypass, or dependency change. Existing payment-request logging is unchanged. Prior supplied review threads are resolved and none is security-related.

Full details: Linked Issues check

Explanation

The implementation meets #14's behavior requirements. iOS maps callback success and failure to the PassKit result, returns the token on success, removes the no-callback delay, and bounds pending authorization at 25 seconds. The Android path and documentation address the platform limitation. The repository has no XCTest coverage for the iOS authorization delegate. The current tests cover the hook and Android code, not the required stub-delegate path.

Resolution

Add XCTest coverage for the iOS authorization delegate. Cover callback success, callback failure, timeout, and the no-callback path.

Full details: Docstring Coverage

Explanation

Docstring coverage is 16.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 24 functions across 9 files. (4 skipped: 4 unsupported.)

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

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…horize # Conflicts: # docs/docs/api/use-payment-checkout.md # package/android/src/main/java/com/margelo/nitro/pay/HybridPaymentHandler.kt # package/src/hooks/usePaymentCheckout.ts

jkasprzyk17 · 2026-10-20T08:22:26Z

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Actionable comments posted: 3

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Inline comments:
Review comments at @docs/docs/guides/manual-flow.md:
- Line 55: Update the manual-flow and linked server-processing documentation
around startPayment, onAuthorize, and sendTokenToServer to explicitly state that
onAuthorize is an alternative to the post-result charge; when it charges the
token, remove the success-branch sendTokenToServer call and do not charge
result.token again.

Review comments at @docs/docs/payment-flow.md:
- Line 44: Update the onAuthorize timing statement to apply the
before-sheet-close behavior only to iOS; explicitly state that Android closes
the Google Pay sheet before onAuthorize runs and settles PaymentResult
afterward, while preserving the existing authorization reference.

Review comments at @package/src/types/Payment.ts:
- Around line 115-122: Update the onAuthorize JSDoc and README guidance to
document that iOS may invoke onAuthorize multiple times for one startPayment
after a failure or timeout, with a new token on each retry. Explicitly instruct
merchants to make charges idempotent using their own order ID rather than the
payment token, and apply the same wording to PaymentDelegate’s onAuthorize
contract and UsePaymentCheckoutConfig.onAuthorize documentation.

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⛔ Files ignored due to path filters: 28

package/nitrogen/generated/android/NitroPayOnLoad.cpp is excluded by !**/generated/**
package/nitrogen/generated/android/c++/JFunc_std__shared_ptr_Promise_std__shared_ptr_Promise_PaymentAuthorizationResult_____PaymentToken.hpp is excluded by !**/generated/**
package/nitrogen/generated/android/c++/JHybridPaymentHandlerSpec.cpp is excluded by !**/generated/**
package/nitrogen/generated/android/c++/JHybridPaymentHandlerSpec.hpp is excluded by !**/generated/**
package/nitrogen/generated/android/c++/JPaymentAuthorizationResult.hpp is excluded by !**/generated/**
package/nitrogen/generated/android/c++/JPaymentAuthorizationStatus.hpp is excluded by !**/generated/**
package/nitrogen/generated/android/c++/JStartPaymentOptions.hpp is excluded by !**/generated/**
package/nitrogen/generated/android/kotlin/com/margelo/nitro/pay/Func_std__shared_ptr_Promise_std__shared_ptr_Promise_PaymentAuthorizationResult_____PaymentToken.kt is excluded by !**/generated/**
package/nitrogen/generated/android/kotlin/com/margelo/nitro/pay/HybridPaymentHandlerSpec.kt is excluded by !**/generated/**
package/nitrogen/generated/android/kotlin/com/margelo/nitro/pay/PaymentAuthorizationResult.kt is excluded by !**/generated/**
package/nitrogen/generated/android/kotlin/com/margelo/nitro/pay/PaymentAuthorizationStatus.kt is excluded by !**/generated/**
package/nitrogen/generated/android/kotlin/com/margelo/nitro/pay/StartPaymentOptions.kt is excluded by !**/generated/**
package/nitrogen/generated/ios/NitroPay-Swift-Cxx-Bridge.cpp is excluded by !**/generated/**
package/nitrogen/generated/ios/NitroPay-Swift-Cxx-Bridge.hpp is excluded by !**/generated/**
package/nitrogen/generated/ios/NitroPay-Swift-Cxx-Umbrella.hpp is excluded by !**/generated/**
package/nitrogen/generated/ios/c++/HybridPaymentHandlerSpecSwift.hpp is excluded by !**/generated/**
package/nitrogen/generated/ios/swift/Func_std__shared_ptr_Promise_std__shared_ptr_Promise_PaymentAuthorizationResult_____PaymentToken.swift is excluded by !**/generated/**
package/nitrogen/generated/ios/swift/Func_void_PaymentAuthorizationResult.swift is excluded by !**/generated/**
package/nitrogen/generated/ios/swift/Func_void_std__shared_ptr_Promise_PaymentAuthorizationResult__.swift is excluded by !**/generated/**
package/nitrogen/generated/ios/swift/HybridPaymentHandlerSpec.swift is excluded by !**/generated/**
package/nitrogen/generated/ios/swift/HybridPaymentHandlerSpec_cxx.swift is excluded by !**/generated/**
package/nitrogen/generated/ios/swift/PaymentAuthorizationResult.swift is excluded by !**/generated/**
package/nitrogen/generated/ios/swift/PaymentAuthorizationStatus.swift is excluded by !**/generated/**
package/nitrogen/generated/ios/swift/StartPaymentOptions.swift is excluded by !**/generated/**
package/nitrogen/generated/shared/c++/HybridPaymentHandlerSpec.hpp is excluded by !**/generated/**
package/nitrogen/generated/shared/c++/PaymentAuthorizationResult.hpp is excluded by !**/generated/**
package/nitrogen/generated/shared/c++/PaymentAuthorizationStatus.hpp is excluded by !**/generated/**
package/nitrogen/generated/shared/c++/StartPaymentOptions.hpp is excluded by !**/generated/**

📒 Files selected for processing: 16

README.md
docs/docs/api/hybrid-payment-handler.md
docs/docs/api/types.md
docs/docs/api/use-payment-checkout.md
docs/docs/guides/manual-flow.md
docs/docs/guides/server-processing.md
docs/docs/payment-flow.md
example/app/(tabs)/index.tsx
package/android/src/main/java/com/margelo/nitro/pay/Constants.kt
package/android/src/main/java/com/margelo/nitro/pay/HybridPaymentHandler.kt
package/android/src/main/java/com/margelo/nitro/pay/PaymentMapper.kt
package/ios/HybridPaymentHandler.swift
package/src/hooks/__tests__/usePaymentCheckout.integration.test.ts
package/src/hooks/usePaymentCheckout.ts
package/src/specs/PaymentHandler.nitro.ts
package/src/types/Payment.ts

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- On iOS, a retry after a failure or timeout calls onAuthorize again with a new token, so key idempotency on the order ID, not the token. - With onAuthorize, don't charge result.token again after startPayment. - Only iOS charges before the sheet closes; Android runs it afterwards.

jkasprzyk17 mentioned this pull request Oct 20, 2026

usePaymentCheckout changes its state when a payment started elsewhere is already in flight #31

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4 tasks

Merge remote-tracking branch 'origin/main' into feat/apple-pay-on-aut…

aba2857

…horize # Conflicts: # docs/docs/api/use-payment-checkout.md # package/android/src/main/java/com/margelo/nitro/pay/HybridPaymentHandler.kt # package/src/hooks/usePaymentCheckout.ts

coderabbitai Bot requested a review from piotr-graczyk-dev October 20, 2026 08:18

coderabbitai Bot requested changes Oct 20, 2026

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Comment thread docs/docs/guides/manual-flow.md Outdated

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Comment thread package/src/types/Payment.ts

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jkasprzyk17 merged commit 93f1ade into main Oct 20, 2026
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feat: let the app settle Apple Pay authorization with onAuthorize - #30

feat: let the app settle Apple Pay authorization with onAuthorize#30
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