title: node_redis CONFIG SET command
body: <p>I am currently writing an app using redis and I'm having issues with the node_redis library.  In particular I am unable to figure out how to use the redis command from within node_redis</p>
  
  <p>I have tried all the following...</p>
  
  <pre><code>client.send_command("CONFIG SET", ["notify-keyspace-events", "Ex"]);
  client.config("SET", ["notify-keyspace-events", "Ex"]);
  </code></pre>
  
  <p>This and other similar variants don't seem to be working... Also I cannot find the command detailed out on the node_redis documentation.</p>
  
  <p>Any help would be greatly appreciated!  </p>
  
  <p>ON A SIDE NOTE:  I am using this command to create a client (node-side) that will subscribe to key-expire events (I want to perform a couple clean-up operations every time a key expires).  Is it acceptable to use the node_redis CONFIG SET equivalent or is it better/common practice to start redis-server with a custom conf file?  I would assume the latter however I want to deploy this on Heroku, does that change the circumstances?</p>
  
  <p>Thanks!</p>