title: Is it ok to use Mongo's "Object ID" as its unique identifier? If so, how can I convert it to a string and look it up by string?
body: <p>For example...</p>
  
  <pre><code>user/view/?id=324gijsdfi3h25o1
  </code></pre>
  
  <p>I can <code>str()</code> it...but...</p>
  
  <p>How can I <code>find</code> it up by string?</p>
  
  <p><strong>Edit: I want each document in Mongo to have a unique identifier (usually a string) that I can look up on. I was hoping the Object ID could be this (since it has a lot of letter and it's unique.) And I want it to work with HTTP GET. view?uid=e93jfsb0e3jflskdjf</strong></p>