need to post an email attached file

I get the email attachment.. as email.part

#<Mail::Part:2167989640, Multipart: false, Headers: <Content-Type:
video/x-m4v; x-unix-mode=0644; name=clipout12_iPhone.m4v>, <Content-
Transfer-Encoding: base64>, <Content-Disposition: attachment;

and I would like to do a remote POST (using RestClient) it in a
multipart form like : ‘http://localhost:3000/foo’, fields_hash.merge(:file

should I store the email.part as a temp file and reuse this temp file
in the post ?
is there any way to post directly the content as a file ?

thanks for your suggestions


I think I found how to do it

file =
{ attr_accessor :original_filename, :content_type }
file.original_filename = part.filename
file.content_type = part.mime_type
fields_hash = { :description => "uploaded file", :name => 'test'}

response = ‘http://localhost:3000/en_GB/clips’,
fields_hash.merge(:file => file)