I am trying to upload files into amazon s3 using nodejs. I was able to upload ,and create a bucket. However, the return value from the upload does not contain the url that link to that file. Does anyone know how obtain the url ? and how to make the file public so I can access it because I am trying to upload images into my website

var multer = require('multer');
var AWS= require('aws-sdk');

var fs = require('fs');

var S3FS = require('s3fs');

var s3fsImpl = new S3FS('bucketName',{
    accessKeyId:'************',
    secretAccessKey:'***************'
});

s3fsImpl.create();

var multiparty = require('connect-multiparty'),
    multipartyMiddleware = multiparty();

router.use(multipartyMiddleware);


router.post('/upload',function(req,res){

    console.log(JSON.stringify(req.files));
    var file = req.files;
    var stream = fs.createReadStream(file.fileUpload.path);
   return s3fsImpl.writeFile(file.fileUpload.originalFilename, stream, 'public-read').then(function(data){
        fs.unlink(file.fileUpload.path, function(err){
            console.error(err);
        })
    });
   res.send('Sucessfully uploaded to Amazon S3 server');
});