title: Query Google Analytics by User ID
body: <p>Is there a way to query results using the <a href="https://developers.google.com/analytics/devguides/reporting/core/v3/" rel="noreferrer">Core Reporting API (v3)</a> and filtering those results by the <a href="https://developers.google.com/analytics/devguides/collection/analyticsjs/user-id" rel="noreferrer">User ID</a> assuming that it is being sent to Google Analytics properly?</p>
  
  <p>I've googled this question a lot and read a whole bunch of articles but I did not find one place that does that. Moreover, the fact that I cannot see the <code>User ID</code> anywhere in the reporting interface makes me doubt that this is even possible. I'm guessing I will have to dome something similar to what is recommended <a href="https://stackoverflow.com/questions/23635770/user-id-not-displaying-in-google-analytics-dashboard-ios">here</a> in order to do it?</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>Apparently, the purpose of my question is not very clear as highlighted by Eike's comment below. What I want to do is generate a report for a specific user with a specific Id using the client API and then combine those results with information I have about this user in my system's database to do something as per my business requirements.</p>