Tracking DB querying time - Bookshelf/knex

Question

I would like to monitor the time taken by a query on my API\'s db. I so created the following function, using bookshelf-signals, a Bookshelf plugin. :

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Answer 1

Based on Mikael Lepistö snippet I came up with this :

const dbEvents = (server, sdc) => {
  knex.on('query', data => {
    server.app[data.__knexQueryUid + ''] = new Date().valueOf();
  });

  knex.on('query-response', (data, obj, builder) => {
    sdc.counter('db_queries_time', new Date().valueOf() - server.app[obj.__knexQueryUid + '']);
    sdc.increment('nr_db_queries');
  });
};

And I then call the function when I start the server - I am working with Hapijs.

EDIT: sdc is a statsd client, I use it to send the DB time :)