node.js - restify file upload - 500 error, socket is closed -

i uploading file using restify api.

it gives me error,

{    "code": "internalerror",     "message": "this socket closed."  }   

the read api still works great unable upload image. possible issue?

the code using,

exports.uploadfile = function (req, res, next) {   var file_name = req.files.image.name;                   var file_name_arr = file_name.split('.');   var imageextension = file_name_arr.pop();   var imagename = date.now()+"."+imageextension;   var newpath = process.cwd() + "/images/" + imagename;    fs.readfile(req.files.image.path, function (err, data) {     fs.writefile(newpath, data, function (err){       if(err) return next(err);       res.json({         image: imagename       })       return next();     });                   }); } 

after digging bit, here found answer. above code reads entire file memory , write on disk slow. rather have used streaming write file works charm.

replacing fs.readfile in above code with

rr = fs.createreadstream(req.files.image.path).pipe(fs.createwritestream(imagepath))  rr.on('error', function(err){    console.log(error) });  rr.on('finish', function(){    //do ur work here }); 

reference link: https://nodejs.org/api/stream.html

other way use fs.rename faster above specified method doesn't have read file @ all.

fs.rename(req.files.image.path, new_file_path);