read-only file system in iOS

[boby1975]

Hi guys,
And I'm trying to use ios/native-xcode-node-folder sample project.
But I can't to save data to the file inside main.js

var fs = require('fs');
fs.writeFileSync('test.txt', 'Hello World!');

EROFS: read-only file system, open 'test.txt'

Does anybody know how it can be writable?
Thanks a lot

[jaimecbernardo]

In the cordova and react-native plugins, there's an API for it.
On iOS, the current working directory might be the App sandbox by default or this might be accessible through homedir ( https://nodejs.org/dist/latest-v12.x/docs/api/os.html#os_os_homedir ).
The iOS app sandbox will have a Documents directory you can write too, if I recall corrrectly.