Get MongoDB operation id from NodeJS native mongodb driver to use for db.killOp
<p>I'm looking for a way to give a user a possibility to stop long-running query on MongoDB.
Through UI backed by NodeJS the user requests some data provided by real-time aggregation on MongoDB 3.2. The aggregation can take too much time and I want to enable user to cancel the operation and cancel query execution on MongoDB.</p>

<p>The way to cancel query is known:
<code>db.killOp(operationId)</code></p>

<p>The question is how I can get operation id from nodejs driver for a specific aggregation query. I use the same connection to Mongodb to run all queries on it.</p>