how to copy files to remote server using scp2 in node js?

I want to copy the files from local server to remote server in Node js using scp2 package. First of all.. Files uploaded to local server using multer after that copy or move that files to remote server.

My Code:

exports.newFileUpload =  function(req , res , next){

    var storage = multer.diskStorage({ //multers disk storage settings
      destination: function (req, file, cb) {
         cb(null, 'uploads/');
      },
      filename: function (req, file, cb) {
          var datetimestamp = Date.now();
          cb(null,  datetimestamp+ '-' +file.originalname);
      }
  });
        var upload = multer({ storage: storage, limits: { fieldSize: 25 * 1024 * 1024 }}).array('file');
        upload(req,res,function(err){
                console.log(req.body);
                console.log(req.files);
            if(err){
                res.json({error_code:1,err_desc:err});
                console.log("Error Occured", err);
                return;
            }else{


                client.scp(req.files[0].path, {
                    host: 'www.do********.in',
                    username: 'username',
                    password: '*********',
                    path: '/uploads/'
                }, function(err) {
                    console.log(req.files[0].path);
                    console.log("files uploaded in remote server");
                    res.json({error_code:0,err_desc:null});
                });
            }
        });
}

file upload to local server is perfectly working, after that to remote server throwing error

Error:

{ date: 'Mon Nov 13 2017 01:00:22 GMT+0530 (India Standard Time)',
  process:
   { pid: 5664,
     uid: null,
     gid: null,
     cwd: 'D:\\sample',
     execPath: 'C:\\Program Files\\nodejs\\node.exe',
     version: 'v8.2.1',
     argv: [ 'C:\\Program Files\\nodejs\\node.exe', 'D:\\sample\\app.js' ],
     memoryUsage:
      { rss: 69619712,
        heapTotal: 45162496,
        heapUsed: 39166256,
        external: 149849 } },
  os: { loadavg: [ 0, 0, 0 ], uptime: 3537.1088452 },
  trace:
   [ { column: 11,
       file: 'util.js',
       function: 'Object.exports._errnoException',
       line: 1024,
       method: '_errnoException',
       native: false },
     { column: 20,
       file: 'util.js',
       function: 'exports._exceptionWithHostPort',
       line: 1047,
       method: '_exceptionWithHostPort',
       native: false },
     { column: 14,
       file: 'net.js',
       function: 'TCPConnectWrap.afterConnect [as oncomplete]',
       line: 1150,
       method: 'afterConnect [as oncomplete]',
       native: false } ],
  stack:[ 'Error: Can\'t set headers after they are sent.',
     '    at validateHeader (_http_outgoing.js:504:11)',
     '    at ServerResponse.setHeader (_http_outgoing.js:511:3)',
     '    at ServerResponse.header (D:\\sample\\node_modules\\express\\lib\\response.js:730:10)',
     '    at ServerResponse.send (D:\\sample\\node_modules\\express\\lib\\response.js:170:12)',
     '    at ServerResponse.json (D:\\sample\\node_modules\\express\\lib\\response.js:256:15)',
     '    at D:\\sample\\routes\\part.js:302:10',
     '    at Client.closeHandler (D:\\sample\\node_modules\\scp2\\lib\\scp.js:48:13)',
     '    at emitNone (events.js:105:13)',
     '    at Client.emit (events.js:207:7)',
     '    at Client.<anonymous> (D:\\sample\\node_modules\\scp2\\lib\\client.js:88:10)',
     '    at emitNone (events.js:105:13)',
     '    at Client.emit (events.js:207:7)',
     '    at Socket.<anonymous> (D:\\sample\\node_modules\\ssh2\\lib\\client.js:225:10)',
     '    at emitOne (events.js:115:13)',
     '    at Socket.emit (events.js:210:7)',
     '    at Pipe._handle.close [as _onclose] (net.js:549:12)' ] }

Couldn't able to identify the error, awaiting suggestions or possible ways to solve the problem.

Thanks in Advance !