resumable upload to s3 using signedURL

My objective is to allow users to upload files to S3 using their web browser, my requirements are:

It must handle large files (2GB+)
It must support pause/resume with progress indicator
Ability to resume upload if connection temporarily drops out

I am currently using this on server side-

var AWS = require('aws-sdk');
AWS.config.update({accessKeyId: config.AWS_ACCESS_KEY_ID, secretAccessKey: config.AWS_SECRET_ACCESS_KEY});
AWS.config.region = 'us-west-2';
var s3 = new AWS.S3();

app.post('/api/gets3url/', function(req, res) {

    if(req.body.file_name && req.body.mime_type) {

        var params = {
            Bucket: config.AWS_BUCKET, 
            Key: req.body.file_name, 
            Expires: 60*60, 
            ContentType: req.body.mime_type 
        };

        s3.getSignedUrl('putObject', params, function(err, _url) {
            if(err) console.log(err);
            return res.json({success: true, url: _url});
        });
    }
    else
        return res.json({success: false, err: "insuficient data"});
});

and on the client-

<form action="" method="post" enctype="multipart/form-data" id="myform" name="myform">
    <input type="file" name="file" id="file">
</form>
<input type="button" name="submit" id="btn_submit" value="submit">

<script type="text/javascript">

    requestURL = function(event) {

        var file = $('#file')[0].files[0]
        var mime = file.type;
        var _data = {file_name: file.name, mime_type: mime, size: file.size};   

        $.ajax({                        //request signed url
            url: '/api/gets3url/',
            type: 'POST',
            data: _data,
        }).success(function(res) {      
            console.log(res);
            $.ajax({
                url: res.url,
                type: 'PUT',
                data: file,
                processData: false,
                contentType: file.type,
            }).success(function(res) {
                console.log('Done');
            });
        });
    }

    $("#btn_submit").bind( "click", requestURL);

</script>

This is working, but it doesn't fulfill the requirements.

Please help. Most of the content I find about this are old.