Unable to upload a file to foldergrid using API - api

Question

Trying to use folder grid api to upload a file. There are 2 steps.
Calling provision a file to get a location with a guid.
Uploading the actual file using a PUT.
I am able to do the first call and get a location of the type https://files.foldergrid.com/upload/xxx. I then try to upload the file using this as my location and keep getting
< HTTP/1.1 100 Continue
* Empty reply from server
* Connection #0 to host files.foldergrid.com left intact
* Closing connection #0
from the server not sure what I am missing?
Here is the code I am using:
After calling the provision api I get back a url which I store in
$url = 'https://files.foldergrid.com/upload/xxx'
and I have the path to the file I want to upload in file
$file = 'some path to file'
then I have call the following method:
public function putFile($file,$url) {
$headers = array(
'fg-eap: false',
'fg-md5:'.md5_file($file),
);
$fh = fopen($file, "rb");
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 2);
curl_setopt($curl, CURLOPT_NOBODY, true);
curl_setopt($curl,CURLOPT_PUT,true);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl, CURLOPT_BINARYTRANSFER, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_INFILE, $fh);
curl_setopt($curl, CURLOPT_INFILESIZE, filesize($file));
curl_setopt( $curl, CURLOPT_VERBOSE, true );
$result = curl_exec($curl);
fclose($fg);
curl_close($curl);
return $result;
}

Answer 1

The code you've posted looks to have everything needed except the Content-Type header. Try setting your headers array as:
$headers = array(
'fg-eap: false',
'fg-md5:'.md5_file($file),
'Content-Type: binary/octet-stream'
);
Also, in response to your query here we've posted an updated PHP client sample under our API documentation here.