The parameter can only be file path

[Lizhooh]

The argument must be file path. If there is only file uri, then it needs to be converted to path first.

import fileType from 'react-native-file-type';
import getPath from 'react-native-get-real-path';

// uri like: content://com.android.providers.media.documents/document/audio:43
const stat = await getPath.getRealPathFromURI(uri)
            .then(path => fileType(path));