Storing Google Sheets in AppData Folder - google-drive-api

Question

There is a way to do that?. I'm using Drive REST API from client browser, even I´ve tryed to convert a csv file into application/vnd.google-apps.spreadsheet but using v2 the request throws a 403 error saying "Method not supported for appdata contents" and using v3 creates the spreadsheet but in root directory instead of appDataFolder.
And if it isn't possible, can I hide a Google Sheet from the user Drive root?
Here my code to upload (using v3)
const boundary = '-------314159265358979323846';
const delimiter = "\r\n--" + boundary + "\r\n";
const close_delim = "\r\n--" + boundary + "--";
var metadata = {
'title': 'my title ',
'mimeType': 'application/vnd.google-apps.spreadsheet',
'parents': [{'id': 'appDataFolder'}]
};
var multipartRequestBody =
delimiter +
'Content-Type: application/json; charset=UTF-8\r\n\r\n' +
JSON.stringify(metadata) +
delimiter +
'Content-Type: text/csv\r\n' +
'\r\n' +
'21/2/2017;prod1;22;33' +
close_delim;
var xhr = new XMLHttpRequest();
xhr.open('POST', 'https://content.googleapis.com/upload/drive/v3/files?uploadType=multipart&convert=true');
xhr.setRequestHeader('Authorization', 'Bearer ' + token);
xhr.setRequestHeader('Content-Type', 'multipart/mixed; boundary="' + boundary + '"');
xhr.onerror=function(a,b,c){console.log('error',a,b,c)};
xhr.onload = function(a,b,c){console.log('success',a,b,c)};
xhr.onreadystatechange = function () {
if(xhr.readyState === XMLHttpRequest.DONE && xhr.status === 200){
console.log(xhr.response);
}
};
xhr.send(multipartRequestBody);