jersey - File upload failure on Google Drive API -

i'm trying implement rest client google drive jersey 2.0.

according following document, made code sends files multipart request.

https://developers.google.com/drive/v2/reference/files/insert https://developers.google.com/drive/manage-uploads

    string targeturl = "https://www.googleapis.com/upload/drive/v2/files?uploadtype=multipart&access_token=" + token.access_token;     webtarget target = client.target(targeturl);     final filedatabodypart filepart = new filedatabodypart("file", file);     final multipart multipart = new formdatamultipart().field("title", file.getname())         .field("description", file.getname())         .bodypart(filepart);     response response = target.request(mediatype.application_json_type)             .post(entity.entity(multipart, multipart.getmediatype()));     system.out.println("response:" + response.readentity(string.class)); 

here's post request code.

post /upload/drive/v2/files?uploadtype=multipart&access_token={access_token} http/1.1\r\n accept: application/json\r\n content-type: multipart/form-data; boundary=boundary_1_1833261898_1373877178038\r\n user-agent: jersey/2.0 (httpurlconnection 1.7.0_25)\r\n mime-version: 1.0\r\n host: www.googleapis.com\r\n content-length: 42430\r\n  mime multipart media encapsulation, type: multipart/form-data, boundary: "boundary_1_1833261898_1373877178038" type: multipart/form-data first boundary: --boundary_1_1833261898_1373877178038\r\n encapsulated multipart part:  (text/plain)     content-type: text/plain\r\n     content-disposition: form-data; name="title"\r\n\r\n     line-based text data: text/plain boundary: \r\n--boundary_1_1833261898_1373877178038\r\n encapsulated multipart part:  (text/plain)     content-type: text/plain\r\n     content-disposition: form-data; name="description"\r\n\r\n     line-based text data: text/plain boundary: \r\n--boundary_1_1833261898_1373877178038\r\n encapsulated multipart part:  (text/plain)     content-type: text/plain\r\n     content-disposition: form-data; filename="googledrive.txt"; modification-date="fri, 12 jul 2013 08:15:47 gmt"; size=41918; name="file"\r\n\r\n     line-based text data: text/plain last boundary: \r\n--boundary_1_1833261898_1373877178038--\r\n 

my post request sent following error occurred.

{  "error": {   "errors": [    {     "domain": "global",     "reason": "parseerror",     "message": "parse error"    }   ],   "code": 400,   "message": "parse error"  } } 

please tell me how avoid error.

an upload request should have 2 multi-parts: metadata , file content , metadata part should in json.

in case create new form-encoded part each attribute. use reference on docs see proper formatting: https://developers.google.com/drive/manage-uploads#multipart

final multipart multipart = new formdatamultipart().field("title", file.getname())     .field("description", file.getname())     .bodypart(filepart); 

your multipart body should valid json.