DocumentPicker - How can I get the file type?

Please provide the following:

  1. SDK Version: 36.0.0
  2. Platforms(Android/iOS/web/all): Android

I need to get a BLOB file with it’s extension in order to upload to a cloud service.

When I use DocumentPicker.getDocumentAsync();

The response looks like this:

Object {
  "name": "NegoNey_Destroi_Catedral",
  "size": 471595,
  "type": "success",
  "uri": "content://com.android.providers.media.documents/document/audio%3A558",
}

||

Object {
  "name": "NegoNey_Destroi_Catedral",
  "size": 471595,
  "type": "success",
  "uri": "file:///data/user/0/host.exp.exponent/cache/ExperienceData/%2540<user>%252F<app>/DocumentPicker/dd37d0d0-ac5c-4952-a433-eda76281f2a3.",
}

The extension should be .mp3, but It’s not on the response.

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