Feature Request: Support for modern expo-file-system API (Expo SDK 54+) #803
Description
Summary
The @powersync/attachments package currently requires the legacy expo-file-system API due to how AbstractAttachmentQueue constructs and passes file paths to StorageAdapter methods. This makes it incompatible with Expo SDK 54+'s modern file system API without workarounds.
Background
As of Expo SDK 54, the new object-based expo-file-system API (File, Directory, Paths) is now stable and the default. The legacy API has been moved to expo-file-system/legacy.
- Expo SDK 54 changelog: https://expo.dev/changelog/sdk-54
- New API blog post: https://expo.dev/blog/expo-file-system
The Problem
AbstractAttachmentQueue builds full URI strings and passes them to StorageAdapter methods:
// AbstractAttachmentQueue.ts
getLocalUri(filePath: string): string {
return ${this.storage.getUserStorageDirectory()}/${filePath};
// Returns: "file:///var/mobile/.../Documents/attachments/abc.jpg"
}