How to get File path from the document directory in iOS and convert that file to Base64.

Hi Team,

Please help me to get the file path from the document in the iOS and also convert the file to Base64 format.
Please find my below code and also find the screenshots.

*****************************************************************************************************************

async pickupDocuments() {
try {
const results = await DocumentPicker.pickMultiple({
type: [DocumentPicker.types.allFiles],
});
for (const res of results) {

const split = (res.uri).split('/');
const name = split.pop();
const inbox = split.pop();
const realPath = 'file://'+`${RNFS.DocumentDirectoryPath}${inbox}/${name}`;
alert(" FILE PATH " + realPath);
RNFS.readFile(realPath, 'base64').then(res => {

alert(" RESPONSE " + res)
})
.catch(err => {
(err.message, err.code);
alert("ERROR MSG" + err.message, "ERROR CODE" + err.code)

});

}

}
catch (err) {
if (DocumentPicker.isCancel(err)) {
alert("User Cancel")
} else {
// throw err;
alert(err)
}
}
}