hide communication client

[kiftio]

What changes are you making?

PR 2 - make the process method internal.

CheckoutCommunicationClient (Android) and CheckoutCommunicationProtocol (Swift/iOS) were previously public-facing interfaces that merchants could implement directly. This PR narrows their visibility to internal/package, making CheckoutProtocol.Client the sole public API for connecting typed Embedded Checkout Protocol (ECP) handlers.

On Android, CheckoutProtocol.Client no longer implements CheckoutCommunicationClient. Instead, an internal CheckoutProtocolClientAdapter bridges between the two, and an extension function asCommunicationClient() is used at the boundary where the internal interface is required. All public-facing APIs (ShopifyCheckoutKit.present, CheckoutPresentation.connect, CheckoutDialog, CheckoutWebView) now accept CheckoutProtocol.Client directly.

On Swift/iOS, CheckoutCommunicationProtocol is demoted to package visibility. The public present(checkout:from:delegate:client:) function and CheckoutViewController.init, ShopifyCheckout.connect, and AcceleratedCheckoutButtons.connect now accept CheckoutProtocol.Client directly. A package-scoped overload of present and connect retaining the any CheckoutCommunicationProtocol signature is preserved for internal use (e.g. the React Native bridge). The CocoaPods ProtocolRelay retroactive conformance of CheckoutProtocol.Client to CheckoutCommunicationProtocol is removed since it is no longer needed.

How to test

1. Verify that passing a CheckoutProtocol.Client to ShopifyCheckoutKit.present (Android) and present(checkout:from:delegate:client:) (iOS) compiles and dispatches typed callbacks correctly.
2. Confirm that attempting to pass a custom CheckoutCommunicationClient / CheckoutCommunicationProtocol implementation directly to any public API no longer compiles.
3. Run the existing Android unit tests, including CheckoutPresentationTest and EmbeddedCheckoutProtocolTest, and verify they pass.
4. Run the React Native ProtocolRelayTest suite and confirm all tests pass using the reflection-based processForTest helper.
5. On iOS, verify the React Native bridge continues to function via the retained package-scoped overloads.

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Before you merge

Important

• I've added tests to support my implementation
• I have read and agree with the Contribution Guidelines
• I have read and agree with the Code of Conduct
• I've updated the relevant platform README (platforms/swift/README.md and/or platforms/android/README.md)

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Releasing a new Swift version?

• I have bumped the version in ShopifyCheckoutKit.podspec
• I have bumped the version in platforms/swift/Sources/ShopifyCheckoutKit/ShopifyCheckoutKit.swift
• I have updated platforms/swift/CHANGELOG.md
• I have updated the SwiftPM/CocoaPods version snippets in platforms/swift/README.md (major version only)

Releasing a new Android version?

• I have bumped the versionName in platforms/android/lib/build.gradle
• I have updated platforms/android/CHANGELOG.md
• I have updated the Gradle/Maven version snippets in platforms/android/README.md

Tip

See the Contributing documentation for the full release process per platform.

[kiftio]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• hide communication client #288 👈 (View in Graphite)
• remove buyer change in web #290
• Use typed Android JSON-RPC params #300
• Use typed Swift JSON-RPC envelopes #299
• respond to unknown requests with error #289
• ignore unknown messages #287
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

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React Native — Coverage Report

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	91.66% (319/348)	87.86% (181/206)	100% (82/82)