title: Upload files to Google Drive API
body: <p>someone knows how can I upload a file selected on client pc on my website and save it to client Drive? </p>
  
  <p>The client clicks on input file button 
  The client select the file at his pc
  The client click upload button 
  File is uploaded to user Drive </p>
  
  <p>A guide or tutorial will be helpful, I tried docs, but there shows my user need to copy and paste an url to authenticate </p>
  
  <p>I'm using Spring Mvc, Security, Servlet 3.1. </p>
  
  <p>Can be to Dropbox too!</p>