create folder with microsoft graph api - php

Question

I'm try to create folder, using microsoft graph API. In microsoft graph explorer, all work fine, but my php code return an error:
$name = 'newFolder'; $access_token = '123..';
$link = 'https://graph.microsoft.com/v1.0/me/drive/root/children';
$data = array(
"name" => $name,
"folder" => array()
);
$curl=curl_init();
curl_setopt($curl,CURLOPT_RETURNTRANSFER,true);
curl_setopt($curl,CURLOPT_URL,$link);
curl_setopt($curl,CURLOPT_CUSTOMREQUEST,'POST');
curl_setopt($curl,CURLOPT_HEADER,false);
curl_setopt($curl,CURLOPT_HTTPHEADER, array('Authorization: Bearer '.$access_token, 'Content-Type: application/json'));
curl_setopt($curl,CURLOPT_POSTFIELDS, $data);
curl_setopt($curl,CURLOPT_SSL_VERIFYPEER,0);
curl_setopt($curl,CURLOPT_SSL_VERIFYHOST,0);
$out = curl_exec($curl);
$codeCurl = curl_getinfo($curl,CURLINFO_HTTP_CODE);
curl_close($curl);
this is response of '$out': 400 BadRequest, Unable to read JSON request payload. Please ensure Content-Type header is set and payload is of valid JSON format. I'm can't understand, what wrong? json data is correct, headers too..

Answer 1

The microsoft graph API documentation shows this example request for create folder:
POST /me/drive/root/children
Content-Type: application/json
{
"name": "New Folder",
"folder": { },
"#microsoft.graph.conflictBehavior": "rename"
}
To get this part of the request : "folder": { } you could either put "folder" => new stdClass() in your $data array or keep this "folder" => array() and use json_encode($data, JSON_FORCE_OBJECT). If you use JSON_FORCE_OBJECT, all arrays will be encoded as objects.
I had the same problem, but error in the response was a bit different: Property folder in payload has a value that does not match schema. I am using "folder" => new stdClass() and it works fine.

Answer 2

The right way is using "json_encode()" to put data in a right format. And correct format for the folder was $folderParameters = ["name" => $name, "folder" => ["childCount" => '0']]; (thank Create folder on OneDrive with API)
The right code is :
$link = 'https://graph.microsoft.com/v1.0/me/drive/root/children';
$data = [
"name" => $name,
"folder" => ["childCount" => '0']
];
$headers = [
'Authorization: Bearer '.$access_token,
'Content-Type: application/json'
];
$curl=curl_init();
curl_setopt($curl,CURLOPT_RETURNTRANSFER,true);
curl_setopt($curl,CURLOPT_URL,$link);
curl_setopt($curl,CURLOPT_CUSTOMREQUEST,'POST');
curl_setopt($curl,CURLOPT_HEADER,false);
curl_setopt($curl,CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl,CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($curl,CURLOPT_SSL_VERIFYPEER,0);
curl_setopt($curl,CURLOPT_SSL_VERIFYHOST,0);
$out = curl_exec($curl);
$codeCurl = curl_getinfo($curl,CURLINFO_HTTP_CODE);
curl_close($curl);