S3 direct upload

s3-phonegap-upload.js

var options = new FileUploadOptions();
options.fileKey="fileupload";
var time = new Date().getTime();
var userId = getUserId(); // In my case, Parse.User.current().id;
var fileName = userId+"-"+time+".jpg";
options.fileName = fileName;
options.mimeType ="image/jpeg";
options.chunkedMode = false;

var uri = encodeURI("https://BUCKET_NAME.s3.amazonaws.com/");

var policyDoc = "POLICY_DOC_GOES_HERE";
var signature = "SIGNATURE_GOES_HERE";
var params = {
  "key": "uploads/"+fileName,
  "AWSAccessKeyId": "ACCESS_KEY_GOES_HERE",
  "acl": "public-read",
  "policy": policyDoc,
  "signature": signature,
  "Content-Type": "image/jpeg"
};
options.params = params;

var ft = new FileTransfer();
ft.upload(imageURI, uri, uploadSuccess, uploadFail, options);

Hi I want to upload and image on s3 using ionic