How to save file to external directory (sdcard) on android?

Expo SDK
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I need save files to sdcard but can’t find any solutions with Expo.

FileSystem have only documentDirectory and cacheDirectory, haven’t got something like sharedDirectory, externalDirectory or sdcardDirectory.

I also try to save a file at “file:///sdcard/foo/bar” but not successful.

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This isn’t something Expo currently supports but please open a feature request here if you’d like: Feature Requests | Expo

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For others interested in this, here’s a link to the relevant feature request: External Storage API | Voters | Expo

External Storage API
I would like to be able to write to / read from a SD card, without having to detach from expo.
– Estefan Antelo Doval

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