upload an image file to sharepoint via api graph - node.js

Question

I am trying to upload an image file from my node.js application to a group's drive in Sharepoint.
As the official documentation states, I'm making my request as follows:
PUT /groups/{group-id}/drive/items/{parent-id}:/{filename}:/content
With the binary image in the body: "The contents of the request body should be the binary stream of the file to be uploaded."
The problem is that the image is uploaded but as a corrupted file. I tried different solutions and still don't see why is always the image corrupted.
Here is my code:
//i get my image from a URL first
https.get(url.parse(attachment.contentUrl), function (response) {
var data = [];
response.on('data', function (chunk) {
data.push(chunk);
});
response.on('end', function () {
if (response.statusCode === 200) {
var buffer = Buffer.concat(data);
//store my image in a local file to test if image is correct (which it is)
fs.writeFile(localFileName, buffer, (fsError) => {
//error handling
});
functions.uploadImageToSharepoint(session, localFileName, buffer,
function (err, body, res) {
if (err) {
console.error(err);
}else{
console.log('OK!');
}
});
} else {
//error handling
}
});
}).on('error', function (e) {
console.log("error2: " + e);
});
//and the request to graph api
function uploadImageToSharepoint(session, fileName, data, callback) {
var options = {
url: 'https://graph.microsoft.com/v1.0/groups/xxxxxxx/drive/root:/yyyyyy/fileName.jpg:/content',
method: 'PUT',
body: data,
json: true,
headers: {
'Content-Type': 'image/jpg',
Authorization: 'Bearer ' + session.userData.accessToken
}
};
request(options, function (err, res, body) {
if (err) return callback(err, body, res);
if (parseInt(res.statusCode / 100, 10) !== 2) {
if (body.error) {
return callback(new Error(res.statusCode + ': ' + (body.error.message || body.error)), body, res);
}
return callback(err, body, res);
}
callback(err, body ,res);
});
}

Answer 1

The file is most likely getting corrupted due to the following option for request:
var options = {
json: true, //<--setting this option sets body to JSON representation of value
//another properties are omitted for clarity
};
In that case request sets body to JSON representation of value and adds accept header to application/json for Upload endpoint and binary file get corrupted.
The solution would be to omit json option from a request and use the proper content-type only:
var options = {
url: '/me/drive/root:/filename.jpg:/content',
method: 'PUT',
body: data,
headers: {
'Content-Type': 'image/jpg',
Authorization: 'Bearer ' + accessToken
}
};