title: How does a Gmail message Id or ThreadId map to the new Gmail UI?
body: <p><strong>Edit</strong>: addressing the first comment below and for clarity, this <em>isn't</em> a code question. The question is simply:</p>
  
  <p><strong>What do I put into the URI querystring of the new Gmail UI to view a draft message created by the Gmail API?</strong></p>
  
  <p>Despite this not really being a code question, I'm asking on Stack Overflow as it's Google's preferred platform for Gmail API questions.</p>
  
  <p>--</p>
  
  <p>If I view a draft message in the new Gmail UI, the URI is something like this:</p>
  
  <p><a href="https://mail.google.com/mail/u/1/?zx=iij9apqgzdf4#drafts?compose=jrjtXSqXwlFGnSGCQgDCdnHGVFdlpFMgzsCNgpQstQLxdLCMkjKstBmWZkCmjhWTQnpsZCJF" rel="noreferrer">https://mail.google.com/mail/u/1/?zx=iij9apqgzdf4#drafts?compose=jrjtXSqXwlFGnSGCQgDCdnHGVFdlpFMgzsCNgpQstQLxdLCMkjKstBmWZkCmjhWTQnpsZCJF</a></p>
  
  <p>I can't see any way to create such a link from the Id or ThreadId of a message created via the Gmail API.</p>
  
  <p>Previously, one could do this:</p>
  
  <p><a href="https://mail.google.com/mail/u/1/?zx=ov61dxfbrcga#drafts?compose=1631caae9dbb074d" rel="noreferrer">https://mail.google.com/mail/u/1/?zx=ov61dxfbrcga#drafts?compose=1631caae9dbb074d</a></p>
  
  <p>where the value of "compose" is the Id.</p>
  
  <p>How can the same thing be accomplished in the new UI?</p>