Content-Type: multipart/form-data; boundary=WUlKV_AtI1-uGU0dtt-ebGl0zL9pZudYnaI8t2g
--WUlKV_AtI1-uGU0dtt-ebGl0zL9pZudYnaI8t2g
Content-Disposition: form-data; name="file_metadata_0"
Content-Type: application/xml; charset=UTF-8
Content-Transfer-Encoding: 8bit

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Attachable xmlns="http://schema.intuit.com/finance/v3">
  <FileName>sammie_and_bubbles.jpg</FileName>
  <Size>278055</Size>
  <ContentType>image/jpeg</ContentType>
  <Category>Contact Photo</Category>
  <Lat>37.120394837</Lat>
  <Long>-37.12398043298</Long>
  <PlaceName>Fake Place</PlaceName>
  <Note>This is a picture of Yujung's dog eating bubbles</Note>
  <Tag>Sammie</Tag>
</Attachable>

--WUlKV_AtI1-uGU0dtt-ebGl0zL9pZudYnaI8t2g
Content-Disposition: form-data; name="file_content_0"; filename="sammie_and_bubbles.JPG"
Content-Type: image/jpeg
Content-Transfer-Encoding: binary
...binary data ...
--WUlKV_AtI1-uGU0dtt-ebGl0zL9pZudYnaI8t2g
Content-Disposition: form-data; name="file_content_1"; filename="hello.txt"
Content-Type: text/plain
Content-Transfer-Encoding: binary
...binary data ...
--WUlKV_AtI1-uGU0dtt-ebGl0zL9pZudYnaI8t2g
Content-Disposition: form-data; name="file_metadata_2"
Content-Type: application/xml; charset=UTF-8
Content-Transfer-Encoding: 8bit

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Attachable xmlns="http://schema.intuit.com/finance/v3">
  <FileName>intuit.png</FileName>
  <Size>7169</Size>
  <ContentType>image/png</ContentType>
  <Category>Image</Category>
  <Note>This file is Intuit logo from insight</Note>
  <Tag>intuit_logo</Tag>
</Attachable>

--WUlKV_AtI1-uGU0dtt-ebGl0zL9pZudYnaI8t2g
Content-Disposition: form-data; name="file_content_2"; filename="intuit.png"
Content-Type: image/png
Content-Transfer-Encoding: binary
...binary data...
--WUlKV_AtI1-uGU0dtt-ebGl0zL9pZudYnaI8t2g--


##</code><code>##

my $r = $ua->post(
		$url,
		Content_Type => 'form-data',
		Content      => [
			file_metadata_0 => $xml,
			file_content_0  => $filename
		]
	);
	my $res_xml = $r->decoded_content;