[isekovanic]

🎯 Goal

It would appear that @babel/parser 7.29.13 (relesed very recently) cannot parse an async arrow function with a return type
annotation inside a ternary (cond ? async (x): T => y : z), a TypeScript construct that tsc and
earlier Babel versions accept. This is a Babel regression, tracked in babel/babel#18264, from the 7.x
backport #18448. 8.x fails on it too.

Metro runs the SDK's TypeScript source through Babel, so a fresh install that resolves 7.29.13 fails to
bundle with "Missing semicolon" in getPhotos.ts and the app never starts. This affects the current
v9 release (9.11.2) and any new project (or ones that upgrade to latest babel).

Ticket: https://linear.app/stream/issue/RN-512/fresh-installs-fail-to-bundle-babelparser-72913-cannot-parse

🛠 Implementation details

getPhotos in stream-chat-react-native and stream-chat-expo was defined as
export const getPhotos = Dependency ? async ({ after, first }): Promise<ReturnType> => {...} : null;.

Each is now a named async function plus a plain ternary:

const getPhotosWithDependency = async ({ after, first }): Promise<ReturnType> => {...};

export const getPhotos = Dependency ? getPhotosWithDependency : null;

Parentheses around the arrow function would also parse, but Prettier removes them according to our rules so I'll avoid changing those now.

🎨 UI Changes

/

🧪 Testing

/

☑️ Checklist

• I have signed the Stream CLA (required)
• PR targets the develop branch
• Documentation is updated (not needed)
• New code is tested in main example apps, including all possible scenarios
  • SampleApp iOS and Android
  • Expo iOS and Android

[Stream-SDK-Bot]

SDK Size

title	develop	branch	diff	status
js_bundle_size	2038 KB	2038 KB	0 B	🟢
ai_components_size	163 KB	163 KB	0 B	🟢

[stream-ci-bot]

🎉 This PR is included in version 9.11.3 🎉

The release is available on:

• v9.11.3
• GitHub release

Your semantic-release bot 📦🚀