Can not save large strings

What happened?

When using AsyncStorage on iOS, I can not store strings larger than around 1024 characters. Doing so simply stores null. This is easily recreated try to store a large string in your app

AsyncStorage.setItem('MY_STRING', Array(1050).fill('a').join(''));

Doing so will give you a manifest containing

{"MY_STRING":null}

saving just 1000 characters however with

AsyncStorage.setItem('MY_STRING', Array(1000).fill('a').join(''));

Will give you

{"MY_STRING":"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"}

Deps

"@react-native-async-storage/async-storage": "1.21.0", "react": "18.2.0", "react-native": "0.73.3"

System

System: OS: macOS 14.1.1 CPU: (10) arm64 Apple M1 Max Memory: 3.56 GB / 64.00 GB Shell: version: "5.9" path: /bin/zsh Binaries: Node: version: 20.10.0 path: ~/.asdf/installs/nodejs/20.10.0/bin/node Yarn: version: 1.22.19 path: /opt/homebrew/bin/yarn npm: version: 10.2.3 path: ~/.asdf/plugins/nodejs/shims/npm Watchman: version: 2023.11.06.00 path: /opt/homebrew/bin/watchman Managers: CocoaPods: version: 1.14.3 path: /Users/xxxxx/.asdf/shims/pod SDKs: iOS SDK: Platforms:

DriverKit 23.0
iOS 17.0
macOS 14.0
tvOS 17.0
watchOS 10.0 Android SDK: Not Found IDEs: Android Studio: 2022.3 AI-223.8836.35.2231.11005911 Xcode: version: 15.0/15A240d path: /usr/bin/xcodebuild Languages: Java: version: 17.0.6 path: /usr/bin/javac Ruby: version: 2.7.4 path: /Users/xxxxxx/.asdf/shims/ruby npmPackages: "@react-native-community/cli": Not Found react: installed: 18.2.0 wanted: 18.2.0 react-native: installed: 0.73.3 wanted: 0.73.3 react-native-macos: Not Found npmGlobalPackages: "react-native": Not Found Android: hermesEnabled: true newArchEnabled: false iOS: hermesEnabled: true newArchEnabled: false

Version

1.21.0

What platforms are you seeing this issue on?

[ ] Android
[X] iOS
[ ] macOS
[ ] Windows
[ ] web

Steps to Reproduce

Can reproduce by following the steps above

Example repo using expo here, doesn't need to be an expo project though

https://github.com/scottwio/expo-async-storage

react-native-async-storage / async-storage