var upyun= new UPYUN('xxx', 'yyy', 'zzz', 'v0', 'legacy')
    upyun.uploadFile(
      '/write/src/'
      ,'./build/web-mobile/src/*'
      ,'folder'
      ,true
//      ,[opts]
      ,(res, err)=>{
        console.log(res, err)
      }
    )

null { statusCode: 200,
  headers: 
   { server: 'vivi/0.6',
     'content-type': 'application/octet-stream',
     'transfer-encoding': 'chunked',
     connection: 'close',
     'x-request-id': '465d625402e3115870462f769173140c',
     date: 'Thu, 23 Jun 2016 02:21:10 GMT',
     etag: '"2834b292750dac521d3b8b0a83a33e3b"',
     'x-request-path': '403-zj-fud-200, ctn-hb-eez-200',
     'x-error-code': '50300006',
     'access-control-allow-origin': '*',
     'x-vivi-streaming': 'on' },
  data: {} }

if(isFile && checksum === true) {
        contentLength = fs.statSync(localFile).size;
        utils.md5sumFile(localFile, function(err, result) {
            opts['Content-MD5'] = result;
            _upload(contentLength, opts);
        });
    } else if(isFile && typeof checksum === 'string') {
        contentLength = fs.statSync(localFile).size;
        opts['Content-MD5'] = checksum;
        _upload(contentLength, opts);
    } else {
        contentLength = localFile.length;
        opts['Content-MD5'] = utils.md5sum(localFile);
        _upload(contentLength, opts);
    }

node-upyun git:(master) mocha


  API Version: 
    ✓ should return instance with legacy API 
    ✓ should return instance with latest API 

  REST API: 
    getUsage(callback)
      1) should return a result contains space and file
    listDir(remotePath, callback)
      2) should return a result contains files
    createDir(remotePath, callback)
      3) should return success code 201
    removeDir(remotePath, callback)
      4) should return 200
    uploadFile(remotePath, localFile, type, checksum, [opts], callback)
      5) should return the uploaded file's info
    uploadFile(remotePath, localFile, type, checksum, [opts], callback)
      6) should return the uploaded file's info
    existsFile(remotePath, callback)
      7) should return 200
    downloadFile(remotePath, callback)
      8) should return file's content
    removeFile(remotePath, callback)
      9) should return 200

  Error handle
    Sign error
      10) should return sign error
    No callback function
      ✓ should throw error