difference retrieve information curl and Guzzle

[Tanguy Bernard]

Hello,
I try to get information about my gitlab session, and the response between guzzle and curl in completely different :


curl -X POST "https://git.my_site.com/api/v3/session?login=my_user&password=my_password"

{
  "id": 1,
  "username": "john_smith",
  "email": "jo...@example.com",
  "name": "John Smith",
  "private_token": "dd34asd13as",
  "blocked": false,
  "created_at": "2012-05-23T08:00:58Z",
  "bio": null,
  "skype": "",
  "linkedin": "",
  "twitter": "",
  "website_url": "",
  "dark_scheme": false,
  "theme_id": 1,
  "is_admin": false,
  "can_create_group": true,
  "can_create_team": true,
  "can_create_project": true
}

And in Guzzle :
$request = $client->createRequest('POST',
                'https://git.my_site.com/api/v3/session', ['query' => $data, "debug" => true] );
        $res= $client->send($request);


object(GuzzleHttp\Message\Response)[563]
  private 'reasonPhrase' => string 'Created' (length=7)
  private 'statusCode' => int 201
  private 'effectiveUrl' => string 'https://git.my_site.com/api/v3/session?login=my_user&password=my_password' (length=76)
  private 'headers' (GuzzleHttp\Message\AbstractMessage) => 
    array (size=9)
      'date' => 
        array (size=1)
          0 => string 'Wed, 22 Jul 2015 10:22:43 GMT' (length=29)
      'status' => 
        array (size=1)
          0 => string '201 Created' (length=11)
      'content-type' => 
        array (size=1)
          0 => string 'application/json' (length=16)
      'content-length' => 
        array (size=1)
          0 => string '465' (length=3)
      'x-runtime' => 
        array (size=1)
          0 => string '0.049605' (length=8)
  private 'headerNames' (GuzzleHttp\Message\AbstractMessage) => 
    array (size=9)
      'date' => string 'Date' (length=4)
      'server' => string 'Server' (length=6)
      'status' => string 'Status' (length=6)
      'content-type' => string 'Content-Type' (length=12)
      'content-length' => string 'Content-Length' (length=14)
      'etag' => string 'ETag' (length=4)
      'cache-control' => string 'Cache-Control' (length=13)
      'x-request-id' => string 'X-Request-Id' (length=12)
      'x-runtime' => string 'X-Runtime' (length=9)
  private 'body' (GuzzleHttp\Message\AbstractMessage) => 
    object(GuzzleHttp\Stream\Stream)[540]
      private 'stream' => resource(627, stream)
      private 'size' => null
      private 'seekable' => boolean true
      private 'readable' => boolean true
      private 'writable' => boolean true
      private 'uri' => string 'php://temp' (length=10)
      private 'customMetadata' => 
        array (size=0)
          empty
  private 'protocolVersion' (GuzzleHttp\Message\AbstractMessage) => string '1.1' (length=3)


But I want the Curl information. How can I do this with Guzzle ?

Thanks in advance.

Tanguy